diff --git a/src/components/combobox.tsx b/src/components/combobox.tsx
index 1e5ed05..89561f8 100644
--- a/src/components/combobox.tsx
+++ b/src/components/combobox.tsx
@@ -19,7 +19,6 @@ import {
   PopoverTrigger,
 } from "@/components/ui/popover"
 
- 
 
 interface ComboboxProps {
   items: any[]
@@ -28,13 +27,14 @@ interface ComboboxProps {
   selectedItem?: string;
   onSelectionChange?: (id: string) => void;
   className?: string;
-  isDisabled?: boolean 
+  isDisabled?: boolean; 
+  valueLength?: number 
 }
 
 
 export const Combobox = (props: ComboboxProps) => {
 
-  const { items, label = "label", placeholder, onSelectionChange, selectedItem, className, isDisabled } = props;
+  const { items, label = "label", placeholder, onSelectionChange, selectedItem, className, isDisabled , valueLength } = props;
   const [query, setQuery] = React.useState<string>("");
 
   const [open, setOpen] = React.useState(false)
@@ -51,10 +51,10 @@ export const Combobox = (props: ComboboxProps) => {
 
   React.useEffect(() => {
     if (open)
-      setQuery(""); 
+      setQuery("");
   }, [open])
 
-  
+
   return (
     <Popover open={open} onOpenChange={setOpen}>
       <PopoverTrigger asChild disabled={isDisabled}>
@@ -64,10 +64,10 @@ export const Combobox = (props: ComboboxProps) => {
           aria-expanded={open}
           className={cn("justify-between", className)}
         >
-        <label className="truncate">
+          <label className="truncate ">
             {
               value
-                ? items.find((item) => item.id === value)?.[label]
+                ? (items.find((item) => item.id === value)?.[label] as string)?.substring(0 , valueLength)
                 : (placeholder ? placeholder : "Select items...")}
           </label>
           <ChevronsUpDownIcon className="ml-2 h-4 w-4 shrink-0 opacity-50" />
diff --git a/src/components/command-menu.tsx b/src/components/command-menu.tsx
index 1556f3a..19a3439 100644
--- a/src/components/command-menu.tsx
+++ b/src/components/command-menu.tsx
@@ -85,7 +85,7 @@ export function CommandMenu() {
                         </CommandGroup>
                     ))}
                     <CommandSeparator />
-                    <CommandGroup heading='Theme'>
+                    <CommandGroup heading={t("menu.theme")}>
                         <CommandItem onSelect={() => runCommand(() => setTheme('light'))}>
                             <IconSun /> <span>{t("menu.light")}</span>
                         </CommandItem>
diff --git a/src/components/date-picker.tsx b/src/components/date-picker.tsx
index 77a9aa0..f39fccc 100644
--- a/src/components/date-picker.tsx
+++ b/src/components/date-picker.tsx
@@ -11,33 +11,44 @@ import {
     PopoverContent,
     PopoverTrigger,
 } from "@/components/ui/popover"
+import { cn } from "@/lib/utils"
 
 
 interface DatePickerProps {
     value?: Date | undefined;
-    onValueChange?: (value?: Date) => void
+    onValueChange?: (value?: Date) => void;
+    noLabel?: boolean;
+    className?: string; 
+    placeholder?: string ;  
 }
 
-const DatePicker: React.FC<DatePickerProps> = ({value, onValueChange}) => {
+const DatePicker: React.FC<DatePickerProps> = ({ value, onValueChange, noLabel = false, className , placeholder = "Pick a date"}) => {
     const [open, setOpen] = React.useState(false)
     const [date, setDate] = React.useState<Date | undefined>(value)
 
+    React.useEffect(() => {
+        setDate (value) ; 
+    } , [ value])
+
     React.useEffect(() => {
         onValueChange && onValueChange(date)
-    }, [date]) 
+    }, [date])
     return (
         <div className="flex flex-col gap-3">
-            <Label htmlFor="date" className="px-1">
-                Date of birth
-            </Label>
+            {
+                !noLabel &&
+                <Label htmlFor="date" className="px-1">
+                    {placeholder}
+                </Label>
+            }
             <Popover open={open} onOpenChange={setOpen}>
                 <PopoverTrigger asChild>
                     <Button
                         variant="outline"
                         id="date"
-                        className="w-full justify-between font-normal"
+                        className={cn("w-full justify-between font-normal" , className)}
                     >
-                        {date ? date.toLocaleDateString() : "Select date"}
+                        {date ? date.toLocaleDateString() : placeholder }
                         <ChevronDownIcon />
                     </Button>
                 </PopoverTrigger>
diff --git a/src/features/database/components/database-diagram.tsx b/src/features/database/components/database-diagram.tsx
index 337a909..34edf50 100644
--- a/src/features/database/components/database-diagram.tsx
+++ b/src/features/database/components/database-diagram.tsx
@@ -18,8 +18,8 @@ import { TableInsertType } from "@/lib/schemas/table-schema";
 
 // Custom context providers and hooks
 import { useDatabase, useDatabaseOperations } from "@/providers/database-provider/database-provider";
-import { useTableToNode } from "@/hooks/use-table-to-node";
-import { useRelationshipToEdge } from "@/hooks/use-relationship-to-edge";
+import { useTableToNode } from "@/features/database/hooks/use-table-to-node";
+import { useRelationshipToEdge } from "@/features/database/hooks/use-relationship-to-edge";
 import { RelationshipInsertType } from "@/lib/schemas/relationship-schema";
 
 // Utils and constants
@@ -33,9 +33,9 @@ import { AlertTriangle, Menu } from "lucide-react";
 import { adjustTablesPositions } from "@/utils/tables";
 //import DatabaseControlButtons from "./database-control-buttons";
 import { FieldType } from "@/lib/schemas/field-schema";
-import useHighlightedEdges from "@/hooks/use-highlighted-edges";
+import useHighlightedEdges from "@/features/database/hooks/use-highlighted-edges";
 import { useTranslation } from "react-i18next";
-import useOverlappingTables from "@/hooks/use-overlapping-tables";
+import useOverlappingTables from "@/features/database/hooks/use-overlapping-tables";
 
 
 import { getRelationshipSourceAndTarget } from "@/utils/relationship";
@@ -73,7 +73,7 @@ const DatabaseDiagram: React.FC = () => {
 
     // Diagram-related state (e.g. connection in progress)
     const { setIsConnectionInProgress, cardinalityStyle, showController, openController } = useDiagramOps();
-    const raise = useToast() ; 
+    const raise = useToast();
     // Destructure tables and relationships from database
     const { tables, relationships } = database || { tables: [], relationships: [] };
 
@@ -146,10 +146,10 @@ const DatabaseDiagram: React.FC = () => {
         } else {
 
 
-                 raise(
+            raise(
                 t("db_controller.invalid_relationship.title"),
                 t("db_controller.invalid_relationship.description"),
-                "ERROR" 
+                "ERROR"
             )
         }
 
@@ -215,7 +215,7 @@ const DatabaseDiagram: React.FC = () => {
 
 
     // Convert tables and relationships into flow elements
-    useTableToNode(tables);
+    useTableToNode(tables, database?.dialect);
     useRelationshipToEdge(relationships);
     useHighlightedEdges(nodes, relationships, edges);
     const { isOverlapping, puls } = useOverlappingTables(tables);
diff --git a/src/features/database/components/db-controller/relationship-controller/index.tsx b/src/features/database/components/db-controller/relationship-controller/index.tsx
index d567f8f..92ee1ab 100644
--- a/src/features/database/components/db-controller/relationship-controller/index.tsx
+++ b/src/features/database/components/db-controller/relationship-controller/index.tsx
@@ -122,7 +122,7 @@ const RelationshipController: React.FC = ({ }) => {
                     >
                         {relationships.map((relationship: RelationshipType) => (
                             <>
-                                <RelationshipAccordionItem relationship={relationship} key={relationship.id} />
+                                <RelationshipAccordionItem relationship={relationship} key={relationship.id} dialect={database?.dialect}/>
                                 <Separator className="my-1" />
                             </>
                         ))}
diff --git a/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-content.tsx b/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-content.tsx
index 8a01c11..759b4cc 100644
--- a/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-content.tsx
+++ b/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-content.tsx
@@ -79,8 +79,8 @@ const RelationshipAccordionContent: React.FC<RelationshipAccordionContentProps>
 
     return (
         <div className="w-full p-2 space-y-4">
-            <div className="flex">
-                <div className="w-full space-y-1">
+           <div className="flex gap-2">
+                <div className="space-y-1 w-full truncate">
                     <Label >
                         {t("db_controller.source_table")}
                     </Label>
@@ -96,7 +96,7 @@ const RelationshipAccordionContent: React.FC<RelationshipAccordionContentProps>
                     </Tooltip>
                 </div>
 
-                <div className="w-full space-y-1">
+                <div className="space-y-1  w-full truncate">
                     <Label >
                         {t("db_controller.referenced_table")}
                     </Label>
diff --git a/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-item.tsx b/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-item.tsx
index 40ee87d..38094cc 100644
--- a/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-item.tsx
+++ b/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-item.tsx
@@ -6,17 +6,20 @@ import {
 import { RelationshipType } from "@/lib/schemas/relationship-schema";
 import RelationshipAccordionTrigger from "./relationship-accordion-trigger";
 import RelationshipAccordionContent from "./relationship-accordion-content";
+import { DatabaseDialect } from "@/lib/database";
 
 interface RelationshipAccordionItemProps {
-    relationship: RelationshipType
+    relationship: RelationshipType , 
+        dialect? : DatabaseDialect
+
 }
 
 
-const RelationshipAccordionItem: React.FC<RelationshipAccordionItemProps> = ({ relationship }) => {
+const RelationshipAccordionItem: React.FC<RelationshipAccordionItemProps> = ({ relationship , dialect }) => {
 
     return (
         <AccordionItem value={relationship.id} className="border-none" id={relationship.id}>
-            <RelationshipAccordionTrigger relationship={relationship} />
+            <RelationshipAccordionTrigger relationship={relationship} dialect = { dialect} />
             <AccordionContent className="flex flex-col gap-4 text-balance">
                 <RelationshipAccordionContent
                     relationship={relationship}
diff --git a/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-trigger.tsx b/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-trigger.tsx
index ec52105..cd63f92 100644
--- a/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-trigger.tsx
+++ b/src/features/database/components/db-controller/relationship-controller/relationship-accordion-item/relationship-accordion-trigger.tsx
@@ -9,17 +9,22 @@ import hash from "object-hash";
 import { getDefaultRelationshipName } from "@/utils/relationship";
 import { AccordionTrigger } from "@/components/ui/accordion";
 import { Button } from "@/components/ui/button";
-import { IconCheck, IconDotsVertical, IconFocus2, IconPencil, IconTrash } from "@tabler/icons-react";
+import { IconAlertTriangle, IconCheck, IconDotsVertical, IconFocus2, IconPencil, IconTrash } from "@tabler/icons-react";
 import { Input } from "@/components/ui/input";
 import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuLabel, DropdownMenuSeparator, DropdownMenuShortcut, DropdownMenuTrigger } from "@/components/ui/dropdown-menu";
+import { DatabaseDialect } from "@/lib/database";
+import { useDatabaseInvalidIdentifier } from "@/features/database/hooks/use-invalid-identifier";
+import { cn } from "@/lib/utils";
+import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 
 
 interface RelationshipAccordionTriggerProps {
     isOpen?: boolean;
-    relationship: RelationshipType
+    relationship: RelationshipType , 
+    dialect?: DatabaseDialect
 }
 
-const RelationshipAccordionTrigger: React.FC<RelationshipAccordionTriggerProps> = ({ isOpen, relationship }) => {
+const RelationshipAccordionTrigger: React.FC<RelationshipAccordionTriggerProps> = ({ isOpen, relationship , dialect }) => {
     const defaultName: string = useMemo(() => {
         return getDefaultRelationshipName(relationship);
     }, [relationship])
@@ -30,20 +35,27 @@ const RelationshipAccordionTrigger: React.FC<RelationshipAccordionTriggerProps>
     const { editRelationship, deleteRelationship } = useDatabaseOperations();
     const { t } = useTranslation();
 
-    
     const [name, setName] = useState<string>(relationship.name ? relationship.name : defaultName);
     const { focusOnRelationship } = useDiagramOps();
 
-
+    const { identifierError , showIdentifierError, identifierMaxLength } = useDatabaseInvalidIdentifier(name, dialect, "constraint");
+    
     const editRelationshipName = () => {
+        
+        
+        if (identifierError == "empty") {
+            setName(relationship.name ? relationship.name : defaultName);
+            setEditMode(false);
+            return;
+        }
         if (relationship.name || name.trim().toLocaleLowerCase() != defaultName)
             editRelationship({
                 id: relationship.id,
-                name
+                name : name.trim()
             } as RelationshipInsertType);
+            
         setEditMode(false);
     }
-
     const onDeleteRelationship = () => {
         deleteRelationship(relationship.id);
 
@@ -60,7 +72,9 @@ const RelationshipAccordionTrigger: React.FC<RelationshipAccordionTriggerProps>
                 <>
                     <div className="w-full flex">
                         <label
-                            className="py-2 !truncate  text-sm cursor-pointer max-w-80"
+                            className={cn("py-2 truncate  text-sm cursor-pointer max-w-50 ", {
+                                "text-destructive": identifierError != null
+                            })}
                         >
                             {relationship.name ? relationship.name : defaultName}
                         </label>
@@ -79,11 +93,28 @@ const RelationshipAccordionTrigger: React.FC<RelationshipAccordionTriggerProps>
                             <IconFocus2 className="size-4 text-muted-foreground " />
                         </Button>
                     </div>
+                      {
+                        identifierError &&
+                        <Tooltip>
+                            <TooltipTrigger asChild>
+                                <Button variant={"ghost"} size="icon" className="size-8 shrink-0 hover:bg-destructive/10 hover:border-destructive/30 dark:hover:bg-destructive/10 dark:hover:border-destructive/30" onClick={(event: any) => {
+                                    event.stopPropagation();
+                                    showIdentifierError();
+                                    setEditMode(true);
+                                }} >
+                                    <IconAlertTriangle className="size-4 text-destructive " />
+                                </Button>
+                            </TooltipTrigger>
+                            <TooltipContent className="bg-destructive fill-destructive [&_svg]:bg-destructive [&_svg]:fill-destructive">
+                                {t("db_controller.validation.error_message")}
+                            </TooltipContent>
+                        </Tooltip>
+                    }
                 </>
             }
             {
                 editMode && <>
-                    <Input
+                     <Input
                         placeholder={"Relationship name"}
                         value={name}
                         onChange={(event: any) => setName(event.target.value)}
@@ -91,8 +122,12 @@ const RelationshipAccordionTrigger: React.FC<RelationshipAccordionTriggerProps>
                         autoFocus
                         type="text"
                         onClick={(event) => event.stopPropagation()}
-                        className="h-8"
-                            onKeyDown={(e: any) => {
+                        aria-invalid={identifierError != null}
+                        className={cn("h-8", {
+                            "text-destructive": identifierError != null
+                        })}
+                        maxLength={identifierMaxLength}
+                        onKeyDown={(e: any) => {
                             if (e.key === "Enter") {
                                 e.preventDefault();
                                 editRelationshipName();
diff --git a/src/features/database/components/db-controller/tables-controller/index.tsx b/src/features/database/components/db-controller/tables-controller/index.tsx
index 2ea262b..cd6268e 100644
--- a/src/features/database/components/db-controller/tables-controller/index.tsx
+++ b/src/features/database/components/db-controller/tables-controller/index.tsx
@@ -9,7 +9,7 @@ import { v4 } from "uuid";
 import { useDiagram } from "@/providers/diagram-provider/diagram-provider";
 import { useReactFlow } from "@xyflow/react";
 import SqlPreview from "../sql-preview";
-import EmptyList from "@/components/empty-list"; 
+import EmptyList from "@/components/empty-list";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { IconListDetails, IconPlus } from "@tabler/icons-react";
@@ -38,9 +38,9 @@ const TablesController: React.FC = ({ }) => {
     const { tables: allTables } = database || { tables: [] };
     const [tables, setTables] = useState<TableType[]>(allTables);
     const { t } = useTranslation();
-   
+
     const [showSqlPreview, setShowSqlPreview] = useState<boolean>(false);
-    const { focusedTableId , setFocusedTableId} = useDiagram();
+    const { focusedTableId, setFocusedTableId } = useDiagram();
     const nameRef: Ref<HTMLInputElement> = useRef<HTMLInputElement>(null);
 
     const sensors = useSensors(
@@ -100,7 +100,7 @@ const TablesController: React.FC = ({ }) => {
     }, [database, tables, getViewport, getInteger]);
 
     useEffect(() => {
-       if (focusedTableId) {
+        if (focusedTableId) {
             const accordionItem = document.getElementById(focusedTableId)
             if (accordionItem)
                 accordionItem?.scrollIntoView({
@@ -177,7 +177,7 @@ const TablesController: React.FC = ({ }) => {
                         type="single"
                         collapsible
                         className="w-full"
-                             value={focusedTableId}
+                        value={focusedTableId}
                         onValueChange={setFocusedTableId}
                     >
                         <DndContext
@@ -193,7 +193,7 @@ const TablesController: React.FC = ({ }) => {
 
                                 {tables.map((table: TableType) => (
                                     <>
-                                        <TableAccordionItem table={table} key={table.id} />
+                                        <TableAccordionItem table={table} key={table.id} dialect={database?.dialect} />
                                         <Separator className="my-1" />
                                     </>
                                 ))}
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-default-value.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-default-value.tsx
index 20125e3..51a52fa 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-default-value.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-default-value.tsx
@@ -277,6 +277,7 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                         ref={defaultValueRef}
                         aria-invalid={!defaultValueValidation.isValid}
                         onChange={defaultValueChange}
+                        maxLength={255}
                         defaultValue={field.defaultValue as string}
                         onBlur={saveDefaultValue as any}
                         placeholder={t("db_controller.field_settings.value")}
@@ -307,14 +308,12 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
             {
 
                 (defaultValueType.select) &&
-
                 <Select
                     aria-label="value"
                     value={selectedValues as any}
                     onValueChange={enumValueChange as any}
-
                 >
-                    <SelectTrigger id="charset" className="w-full flex ">
+                    <SelectTrigger className="w-full flex ">
                         <SelectValue placeholder={t('db_controller.field_settings.pick_value')} />
                     </SelectTrigger>
 
@@ -322,13 +321,11 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                         <SelectItem value={"none"} >
                             {t("db_controller.field_settings.no_default")}
                         </SelectItem>
-
                         {
                             values.map((value: string) => (
                                 <SelectItem
                                     key={value}
-                                    value={value}
-                                >
+                                    value={value}>
                                     {value}
                                 </SelectItem>
                             ))
@@ -347,7 +344,7 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                     onValueChange={enumValueChange as any}
 
                 >
-                    <SelectTrigger id="charset" className="w-full flex ">
+                    <SelectTrigger className="w-full flex ">
                         <SelectValue placeholder={t('db_controller.field_settings.pick_value')} />
                     </SelectTrigger>
 
@@ -372,7 +369,7 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                     }
                     onValueChange={enumValueChange}
                     defaultValue={selectedValues as any}
-                    placeholder="Select fields..."
+                    placeholder={t("db_controller.field_settings.multi_select_placeholder")}
                     variant={"secondary"}
                     hideSelectAll
                 />
@@ -408,6 +405,7 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                         <DatePicker
                             value={defaultDateTime}
                             onValueChange={saveDefaultDateTime}
+                            placeholder={t("db_controller.field_settings.date_placeholder")}
                         />
 
                     }
@@ -415,7 +413,7 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                         timeSelection == TimeDefaultValues.CUSTOM && field.type.name == "time" &&
                         <>
                             <Label htmlFor="time">
-                                Time
+                                {t("db_controller.field_settings.time")}
                             </Label>
                             <Input
                                 id="time"
@@ -424,6 +422,7 @@ const fieldDefautlValue: React.FC<FieldDefaultValueProps> = ({ field }) => {
                                 defaultValue={defaultDateTime}
                                 onChange={(event) => setDefaultDateTime(event.target.value)}
                                 onBlur={saveDefaultDateTime as any}
+                                maxLength={255}
                                 className="bg-background appearance-none [&::-webkit-calendar-picker-indicator]:hidden [&::-webkit-calendar-picker-indicator]:appearance-none"
                             />
                         </>
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-item.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-item.tsx
index 6c4eb7e..2fab3a1 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-item.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-item.tsx
@@ -5,11 +5,11 @@ import { Settings2 } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import { CSS } from "@dnd-kit/utilities";
 import { FieldType } from "@/lib/schemas/field-schema";
-import { Key, useEffect, useState } from "react";
+import { Key, useEffect, useRef, useState } from "react";
 import { useDatabaseOperations } from "@/providers/database-provider/database-provider";
 import FieldSetting from "./field-setting";
 import { DataType } from "@/lib/schemas/data-type-schema";
-import { IconGripVertical, IconKey, IconKeyframe } from "@tabler/icons-react";
+import { IconAlertTriangle, IconGripVertical, IconKey, IconKeyframe } from "@tabler/icons-react";
 import { Input } from "@/components/ui/input";
 import { Combobox } from "@/components/combobox";
 import { Toggle } from "@/components/ui/toggle";
@@ -17,14 +17,19 @@ import { Toggle } from "@/components/ui/toggle";
 import { TooltipTrigger, Tooltip, TooltipContent } from "@/components/ui/tooltip";
 import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
 import { Button } from "@/components/ui/button";
+import { DatabaseDialect } from "@/lib/database";
+import { useDatabaseInvalidIdentifier } from "@/features/database/hooks/use-invalid-identifier";
+import { cn } from "@/lib/utils";
 
 interface Props {
-    field: FieldType
+    field: FieldType;
+    dialect?: DatabaseDialect
+
 }
 
 
 
-const FieldItem: React.FC<Props> = ({ field }) => {
+const FieldItem: React.FC<Props> = ({ field, dialect }) => {
 
     const [fieldName, setFieldName] = useState<string>(field.name);
 
@@ -34,6 +39,9 @@ const FieldItem: React.FC<Props> = ({ field }) => {
     const [selectedType, setSelectedType] = useState<string | undefined>(field.typeId as string | undefined);
     const { t } = useTranslation();
 
+    const { identifierError, showIdentifierError, identifierMaxLength } = useDatabaseInvalidIdentifier(fieldName, dialect, "column");
+    const inputRef = useRef<HTMLInputElement>(null);
+
     const { attributes, listeners, setNodeRef, transform } = useSortable({ id: field.id });
 
     const style = {
@@ -49,10 +57,17 @@ const FieldItem: React.FC<Props> = ({ field }) => {
     }, [field.typeId])
 
 
+
+
     const saveFieldName = () => {
+
+        if (identifierError == "empty") {
+            setFieldName(field.name);
+            return;
+        }
         editField({
             id: field.id,
-            name: fieldName
+            name: fieldName.trim()
         } as FieldType);
     }
     const updateFieldType = (key: Key | null) => {
@@ -93,28 +108,59 @@ const FieldItem: React.FC<Props> = ({ field }) => {
                 <IconGripVertical className="size-4 text-muted-foreground hover:text-foreground cursor-move shrink-0" />
             </div>
             <div className="flex gap-2 w-full">
-                <Input
-                    aria-label={t("db_controller.name")}
-                    placeholder={t("db_controller.name")}
-                    value={fieldName}
-                    onChange={(event: any) => setFieldName(event.target.value)}
-                    onBlur={saveFieldName}
-                    className=" flex flex-1 !bg-transparent"
-                     onKeyDown={(e : any) => {
-                        if (e.key === "Enter") {
-                            e.preventDefault();
-                            saveFieldName() ; 
-                            e.target.blur() ; 
-                        }
-                    }}
-                />
+                <div className="flex flex-1  relative items-center min-w-0  ">
+
+                    <Input
+                        aria-label={t("db_controller.name")}
+                        placeholder={t("db_controller.name")}
+                        value={fieldName}
+                        onChange={(event: any) => setFieldName(event.target.value)}
+                        onBlur={saveFieldName}
+                        maxLength={identifierMaxLength}
+                        aria-invalid={identifierError != null}
+                        ref={inputRef}
+                        onKeyDown={(e: any) => {
+                            if (e.key === "Enter") {
+                                e.preventDefault();
+                                saveFieldName();
+                                e.target.blur();
+                            }
+                        }}
+                        className={cn("flex flex-1 !bg-transparent !opacity-100", {
+                            "text-destructive pr-10": identifierError != null
+                        })}
+                    />
+                    {
+                        identifierError &&
+                        <Tooltip >
+                            <TooltipTrigger asChild className="absolute">
+                                <Button variant={"ghost"} size="icon"
+                                    className="size-7 shrink-0 hover:bg-destructive/10  dark:hover:bg-destructive/10  right-1 bg-background  rounded-sm"
+                                    onClick={(event: any) => {
+                                        event.stopPropagation();
+                                        showIdentifierError();
+                                        inputRef.current?.focus();
+                                    }}>
+                                    <IconAlertTriangle className="size-4 text-destructive " />
+                                </Button>
+                            </TooltipTrigger>
+                            <TooltipContent className="bg-destructive fill-destructive [&_svg]:bg-destructive [&_svg]:fill-destructive">
+                                {t("db_controller.validation.error_message")}
+                            </TooltipContent>
+                        </Tooltip>
+                    }
+                </div>
                 <Combobox
                     items={data_types}
                     label="name"
                     placeholder={t("db_controller.type")}
                     selectedItem={selectedType}
+
                     onSelectionChange={updateFieldType}
-                    className="flex flex-1  !bg-transparent !font-normal min-w-0"
+                    className={cn("flex flex-1  !bg-transparent !font-normal  !opacity-100 min-w-0 w-full ", {
+                        "text-destructive border-destructive hover:text-destructive": !selectedType
+                    })}
+                    valueLength={20}
                 />
             </div>
             <div className="flex gap-2 ml-2 ">
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-list.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-list.tsx
index 0f48375..9af8dda 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-list.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-list.tsx
@@ -11,20 +11,21 @@ import React, {  useEffect, useState } from "react";
 import {  useDatabaseOperations } from "@/providers/database-provider/database-provider";
 
 import hash from "object-hash" ; 
+import { DatabaseDialect } from "@/lib/database";
 
 interface Props {
     tableFields: FieldType[] ; 
-    tableId : string ; 
+    tableId : string ;
+    dialect?: DatabaseDialect
 }
 
 
-const FieldList: React.FC<Props> = ({ tableFields , tableId}) => {
+const FieldList: React.FC<Props> = ({ tableFields , tableId , dialect}) => {
  
     const [fields, setFields] = useState<FieldType[]>(tableFields);
     const { orderTableFields  } = useDatabaseOperations();
 
     useEffect(() => {
-
         setFields(tableFields)
     }, [tableFields])
 
@@ -65,7 +66,7 @@ const FieldList: React.FC<Props> = ({ tableFields , tableId}) => {
                     >
                         {
                             fields.map((field: FieldType) => (
-                                <FieldItem field={field} key={field.id} />
+                                <FieldItem field={field} key={field.id} dialect={dialect}/>
 
                             ))
                         }
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-setting.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-setting.tsx
index 3aa0412..8aa047f 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-setting.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/field/field-setting.tsx
@@ -273,7 +273,7 @@ const FieldSetting: React.FC<FieldSettingProps> = ({ field }) => {
 
 
     return (
-        <div className="w-full flex flex-col gap-2   max-w-[260px]">
+        <div className="w-full flex flex-col gap-2  max-w-[260px]">
             <h3 className="font-medium text-sm">
                 {t("db_controller.field_settings.title")}
             </h3>
@@ -366,8 +366,6 @@ const FieldSetting: React.FC<FieldSettingProps> = ({ field }) => {
                         {
                             modifiers.includes(Modifiers.SCALE) &&
                             <div className="flex flex-col gap-2 w-full">
-
-
                                 <Tooltip>
                                     <TooltipTrigger asChild>
                                         <Label className="flex items-center justify-between font-medium" htmlFor="scale">
@@ -438,7 +436,8 @@ const FieldSetting: React.FC<FieldSettingProps> = ({ field }) => {
                                 </SelectTrigger>
                                 <SelectContent>
                                     <SelectItem value={"none"} >
-                                        No charset
+                                        {t("db_controller.field_settings.no_charset")}
+
                                     </SelectItem>
 
                                     {
@@ -464,7 +463,6 @@ const FieldSetting: React.FC<FieldSettingProps> = ({ field }) => {
                                 aria-label="collation"
                                 value={collation as any}
                                 onValueChange={changeCollation as any}
-
                             >
                                 <SelectTrigger id="collation" className="w-full">
                                     <SelectValue placeholder={t("db_controller.field_settings.collation")} />
@@ -472,7 +470,7 @@ const FieldSetting: React.FC<FieldSettingProps> = ({ field }) => {
                                 <SelectContent>
 
                                     <SelectItem value={"none"} >
-                                        No collation
+                                        {t("db_controller.field_settings.no_collation")}
                                     </SelectItem>
                                     {
                                         Object.values(collations).map((collation: string) => (<SelectItem 
@@ -530,7 +528,7 @@ const FieldSetting: React.FC<FieldSettingProps> = ({ field }) => {
                     <InputTags
                         value={jsonValues}
                         onChange={updateValues as any}
-                        placeholder="Enter values, comma separated..."
+                        placeholder={t("db_controller.field_settings.input_tag_placeholder")}
                     />
                 </>
             }
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/index-item.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/index-item.tsx
index 5ef3374..ae4329f 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/index-item.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/index-item.tsx
@@ -5,14 +5,18 @@ import { Label } from "@/components/ui/label";
 import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
 import { Separator } from "@/components/ui/separator";
 import { Switch } from "@/components/ui/switch";
+import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
+import { useDatabaseInvalidIdentifier } from "@/features/database/hooks/use-invalid-identifier";
+import { DatabaseDialect } from "@/lib/database";
 import { FieldType } from "@/lib/schemas/field-schema";
 import { FieldIndexType } from "@/lib/schemas/field_index-schema";
 import { IndexInsertType, IndexType } from "@/lib/schemas/index-schema";
+import { cn } from "@/lib/utils";
 import { useDatabaseOperations } from "@/providers/database-provider/database-provider";
 import { areArraysEqual } from "@/utils/utils";
-import { IconTrash } from "@tabler/icons-react";
+import { IconAlertTriangle, IconTrash } from "@tabler/icons-react";
 import { Settings2 } from "lucide-react";
-import { useCallback, useEffect, useState } from "react";
+import { useCallback, useEffect, useRef, useState } from "react";
 import { useTranslation } from "react-i18next";
 
 
@@ -21,19 +25,30 @@ import { useTranslation } from "react-i18next";
 
 interface Props {
     index: IndexType;
-    fields: FieldType[]
+    fields: FieldType[];
+    dialect?: DatabaseDialect
+
 }
 
 
-const IndexItem: React.FC<Props> = ({ index, fields }) => {
+const IndexItem: React.FC<Props> = ({ index, fields, dialect }) => {
     const { t } = useTranslation();
     const { editIndex, deleteIndex, editFieldIndices } = useDatabaseOperations();
     const [isUnique, setIsUnique] = useState<boolean>(index.unique as boolean);
 
     const [fieldIndices, setFieldIndices] = useState<string[]>([]);
 
+    const inputRef = useRef<HTMLInputElement>(null);
+
+    const [indexName, setIndexName] = useState<string>(index.name);
+    const { identifierError, showIdentifierError, identifierMaxLength } = useDatabaseInvalidIdentifier(indexName, dialect, "index");
+
+
+
+    useEffect(() => {
+        setIndexName(index.name);
+    }, [index.name]);
 
-     
 
     useEffect(() => {
         setFieldIndices(
@@ -52,10 +67,15 @@ const IndexItem: React.FC<Props> = ({ index, fields }) => {
             unique
         } as IndexInsertType);
     }
-    const editIndexName = (event: any) => {
+    const editIndexName = () => {
+
+        if (identifierError == "empty") {
+            setIndexName(index.name);
+            return;
+        }
         editIndex({
             id: index.id,
-            name: event.target.value
+            name: indexName
         } as IndexInsertType);
     }
     const removeIndex = () => {
@@ -63,9 +83,15 @@ const IndexItem: React.FC<Props> = ({ index, fields }) => {
     }
 
     const updateFieldIndices = useCallback((fieldIds: string[]) => {
+
+        const previousFieldids: string[] = index.fieldIndices.map((fieldIndex: FieldIndexType) => fieldIndex.fieldId);
+        const deletedFieldIndicesIds: string[] = index.fieldIndices.filter((fieldIndex: FieldIndexType) => !fieldIds.includes(fieldIndex.fieldId)).map((fieldIndex: FieldIndexType) => fieldIndex.id);
+        const createFieldIndices: string[] = fieldIds.filter((fieldId: string) => !previousFieldids.includes(fieldId))
+
         setFieldIndices(fieldIds);
         if (!areArraysEqual(fieldIds, index.fieldIndices.map((fieldIndex: FieldIndexType) => fieldIndex.fieldId)))
-            editFieldIndices(index.id, fieldIds);
+            editFieldIndices(index.id, createFieldIndices, deletedFieldIndicesIds);
+
     }, [index.fieldIndices])
 
     return (
@@ -90,12 +116,15 @@ const IndexItem: React.FC<Props> = ({ index, fields }) => {
                         <Button
                             size="icon"
                             variant={"ghost"}
-                            className="dark:bg-card dark:border-none size-9 text-muted-foreground hover:text-foreground"
+                            className="dark:bg-card dark:border-none size-9 text-muted-foreground hover:text-foreground relative"
                         >
                             <Settings2 className="size-4 " />
+                            {
+                                identifierError && <span className="size-1.5 bg-destructive rounded-md absolute bottom-1.5 right-1.5"></span>
+                            }
                         </Button>
                     </PopoverTrigger>
-                    <PopoverContent side="right" className="max-w-[210px]">
+                    <PopoverContent side="right" className="max-w-[224px]">
                         <div className="w-full flex flex-col gap-2 ">
                             <h3 className="font-medium text-sm ">
                                 {t("db_controller.index_setting")}
@@ -115,15 +144,44 @@ const IndexItem: React.FC<Props> = ({ index, fields }) => {
                                 {t("db_controller.name")}
                             </Label>
 
-                            <Input
-                                id="name"
-                                aria-label={t("db_controller.index_name")}
-                                placeholder={t("db_controller.index_name")}
-                                onBlur={editIndexName}
-                                autoFocus
-                                defaultValue={index.name}
-                            />
+                            <div className="flex items-center">
 
+                                <Input
+                                    id="name"
+                                    aria-label={t("db_controller.index_name")}
+                                    placeholder={t("db_controller.index_name")}
+                                    onBlur={editIndexName}
+                                    onChange={(event: any) => setIndexName(event.target.value)}
+                                    ref={inputRef}
+                                    aria-invalid={identifierError != null}
+                                    autoFocus
+                                    defaultValue={indexName}
+                                    value={indexName}
+                                    maxLength={identifierMaxLength}
+                                    className={cn({
+                                        "text-destructive pr-10": identifierError != null
+                                    })}
+                                />
+                                 {
+                                    identifierError &&
+                                    <Tooltip>
+                                        <TooltipTrigger asChild className="absolute">
+                                            <Button variant={"ghost"} size="icon"
+                                                className="size-7 shrink-0 hover:bg-destructive/10  dark:hover:bg-destructive/10  right-5.5 bg-background  rounded-sm"
+                                                onClick={(event: any) => {
+                                                    event.stopPropagation();
+                                                    showIdentifierError();
+                                                    inputRef.current?.focus();
+                                                }}>
+                                                <IconAlertTriangle className="size-4 text-destructive " />
+                                            </Button>
+                                        </TooltipTrigger>
+                                        <TooltipContent className="bg-destructive fill-destructive [&_svg]:bg-destructive [&_svg]:fill-destructive">
+                                            {t("db_controller.validation.error_message")}
+                                        </TooltipContent>
+                                    </Tooltip>
+                                }
+                            </div>
                             <Separator />
                             <Button
                                 variant="destructive"
@@ -138,7 +196,7 @@ const IndexItem: React.FC<Props> = ({ index, fields }) => {
                     </PopoverContent>
                 </Popover>
             </div>
-      
+
         </div>
     )
 }
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/indexes-list.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/indexes-list.tsx
index b115fd5..cb571d2 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/indexes-list.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/index/indexes-list.tsx
@@ -8,38 +8,47 @@ import { FieldType } from "@/lib/schemas/field-schema";
 import { useDatabaseOperations } from "@/providers/database-provider/database-provider";
 import { v4 } from "uuid";
 import { IconPlus } from "@tabler/icons-react";
+import { TableType } from "@/lib/schemas/table-schema";
+import { DatabaseDialect } from "@/lib/database";
+import { useTranslation } from "react-i18next";
 
 interface IndexesListProps {
     indices: IndexType[],
     fields: FieldType[],
-    tableId: string
+    tableId: string,
+    table: TableType,
+    dialect?: DatabaseDialect
 }
 
 
 
-const IndexesList: React.FC<IndexesListProps> = ({ indices, fields, tableId }) => {
- 
+const IndexesList: React.FC<IndexesListProps> = ({ indices, fields, tableId, table, dialect }) => {
+
     const { createIndex } = useDatabaseOperations();
 
+    const { t } = useTranslation();
+
     const addIndex = (event: any) => {
+
         event.stopPropagation && event.stopPropagation();
         createIndex({
             id: v4(),
-            name: `index_${indices.length + 1}`,
+            name: `${table.name}_index_${indices.length + 1}`,
             unique: false,
             tableId: tableId
         } as IndexInsertType);
     }
+
     return (
         <div className="w-full flex-col space-y-2 ">
             {
-                indices.map((index: IndexType) => <IndexItem index={index} fields={fields} key={index.id} />)
+                indices.map((index: IndexType) => <IndexItem index={index} fields={fields} key={index.id} dialect={dialect} />)
             }
             {
                 indices.length == 0 && <p className="text-muted-foreground py-1">
-                    No Indices found <span className="text-foreground hover:underline cursor-pointer" onClick={addIndex}>
-                        create new one <IconPlus className="size-3.5 shrink-0 inline"/>
-                    </span>
+                    {t("db_controller.no_index")}  {  <span className="text-foreground hover:underline cursor-pointer" onClick={addIndex}>
+                        {t("db_controller.create_new_index")} <IconPlus className="size-3.5 shrink-0 inline" />
+                    </span>}
                 </p>
             }
 
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-content.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-content.tsx
index a411ae0..720819d 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-content.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-content.tsx
@@ -4,25 +4,27 @@ import { useTranslation } from "react-i18next";
 import FieldList from "./field/field-list";
 import IndexesList from "./index/indexes-list";
 import { TableType } from "@/lib/schemas/table-schema";
-import {  useDatabaseOperations } from "@/providers/database-provider/database-provider";
+import { useDatabaseOperations } from "@/providers/database-provider/database-provider";
 import { getNextSequence } from "@/utils/field";
 import { v4 } from "uuid";
 import { IndexInsertType } from "@/lib/schemas/index-schema";
 import { FieldInsertType } from "@/lib/schemas/field-schema";
 import { AccordionContent, Accordion, AccordionItem, AccordionTrigger } from "@/components/ui/accordion";
-import { IconBolt , IconFolder,  IconMessageCircle,  } from "@tabler/icons-react";
+import { IconBolt, IconFolder, IconMessageCircle, } from "@tabler/icons-react";
 import { Textarea } from "@/components/ui/textarea";
 import { Button } from "@/components/ui/button";
 import ColorPicker from "@/components/color-picker";
+import { DatabaseDialect } from "@/lib/database";
 
 
 
 export interface TableAccordionBodyProps {
     table: TableType,
     keys?: string[];
+    dialect?: DatabaseDialect
 }
 
-const TableAccordionContent: React.FC<TableAccordionBodyProps> = ({ table, keys }) => {
+const TableAccordionContent: React.FC<TableAccordionBodyProps> = ({ table, keys , dialect}) => {
 
     const [selectedItems, setSelectedItems] = useState<string[]>(["fields"]);
     const [note, setNote] = useState<string>(table.note ? table.note : "");
@@ -79,17 +81,16 @@ const TableAccordionContent: React.FC<TableAccordionBodyProps> = ({ table, keys
             setSelectedItems([...selectedItems, "indexes"])
     }, [table.indices.length])
 
-  
+
     return (
         <AccordionContent className=" p-0 ">
             <Accordion
                 type="multiple"
                 className="w-full"
                 value={selectedItems}
-
                 onValueChange={setSelectedItems as any}
             >
-                
+
                 <AccordionItem value="fields" className="border-none">
                     <AccordionTrigger className="py-1 rounded-none  text-muted-foreground pr-1.5" position="right" >
                         <div className="w-full flex gap-1 items-center">
@@ -98,26 +99,26 @@ const TableAccordionContent: React.FC<TableAccordionBodyProps> = ({ table, keys
                         </div>
                     </AccordionTrigger>
                     <AccordionContent className="pb-0 ">
-                        <FieldList tableFields={table.fields} tableId={table.id} />
+                        <FieldList tableFields={table.fields} tableId={table.id} dialect={dialect}/>
                     </AccordionContent>
                 </AccordionItem>
-               
+
                 <AccordionItem value="indexes" className="border-none">
                     <AccordionTrigger className=" py-1  rounded-none text-muted-foreground pr-1.5" position="right">
-                        <div className="w-full flex gap-1 items-center">         
+                        <div className="w-full flex gap-1 items-center">
                             <IconBolt className="size-4" />
                             {t("db_controller.indexes")}
                         </div>
                     </AccordionTrigger>
                     <AccordionContent className="pb-2">
-                        <IndexesList indices={table.indices} fields={table.fields} tableId={table.id} />
+                        <IndexesList indices={table.indices} fields={table.fields} table={table} tableId={table.id} dialect={dialect}/>
                     </AccordionContent>
                 </AccordionItem>
 
-                <AccordionItem value="note"  className="border-none">
+                <AccordionItem value="note" className="border-none">
                     <AccordionTrigger className=" py-1 rounded-none  text-muted-foreground  pr-1.5" position="right">
                         <div className="w-full flex gap-1 items-center">
-                               <IconMessageCircle className="size-4  " />
+                            <IconMessageCircle className="size-4  " />
                             {t("db_controller.note")}
                         </div>
                     </AccordionTrigger>
@@ -125,20 +126,20 @@ const TableAccordionContent: React.FC<TableAccordionBodyProps> = ({ table, keys
                         <Textarea
                             placeholder={t("db_controller.table_note")}
                             value={note}
-                            onChange={(event : any) => setNote(event.target.value) }
+                            onChange={(event: any) => setNote(event.target.value)}
                             onBlur={saveNote}
                             className="resize-none min-h-[86px] focus-visible:ring-0 bg-secondary dark:bg-background"
                         />
                     </AccordionContent>
-                </AccordionItem> 
-              
+                </AccordionItem>
+
             </Accordion>
             <div className="flex  pt-2  justify-between  pr-1.5  items-center ">
                 <div className="h-full flex items-center">
                     <ColorPicker
                         defaultColor={table.color as string}
                         onChange={onColorChange}
-                        
+
                     />
                 </div>
                 <div className="flex gap-2 ">
@@ -168,4 +169,3 @@ const TableAccordionContent: React.FC<TableAccordionBodyProps> = ({ table, keys
 
 export default React.memo(TableAccordionContent);
 
- 
\ No newline at end of file
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-item.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-item.tsx
index 95515db..cc9f034 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-item.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-item.tsx
@@ -8,13 +8,15 @@ import TableAccordionContent from "./table-accordion-content";
 import React, { forwardRef } from "react";
 import { useSortable } from "@dnd-kit/sortable";
 import { CSS } from "@dnd-kit/utilities";
+import { DatabaseDialect } from "@/lib/database";
 
 interface TableAccordionItemProps {
     table: TableType;
+    dialect?: DatabaseDialect
 }
 
 const TableAccordionItem = forwardRef<HTMLDivElement, TableAccordionItemProps>(
-    ({ table }, ref) => {
+    ({ table , dialect }, ref) => {
         const { attributes, setNodeRef, transform, transition } = useSortable({ id: table.id });
 
         if (transform?.scaleY)
@@ -35,9 +37,9 @@ const TableAccordionItem = forwardRef<HTMLDivElement, TableAccordionItemProps>(
                     {...attributes}
                     className="w-full  "
                 >
-                    <TableAccordionTrigger table={table} />
+                    <TableAccordionTrigger table={table} dialect={dialect}  />
                     <AccordionContent className="flex flex-col gap-4 text-balance">
-                        <TableAccordionContent table={table} />
+                        <TableAccordionContent table={table} dialect={dialect} />
                     </AccordionContent>
                 </div>
             </AccordionItem>
diff --git a/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-trigger.tsx b/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-trigger.tsx
index 4464aec..0762cca 100644
--- a/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-trigger.tsx
+++ b/src/features/database/components/db-controller/tables-controller/table-accordion-item/table-accordion-trigger.tsx
@@ -12,22 +12,27 @@ import { cloneTable } from "@/utils/tables";
 import { IndexInsertType } from "@/lib/schemas/index-schema";
 import { FieldInsertType } from "@/lib/schemas/field-schema";
 import { AccordionTrigger } from "@/components/ui/accordion";
-import { IconBolt, IconCheck, IconCopy, IconDotsVertical, IconFocus2, IconFolder, IconGripVertical, IconPencil, IconTrash } from "@tabler/icons-react";
+import { IconAlertTriangle, IconBolt, IconCheck, IconCopy, IconDotsVertical, IconFocus2, IconFolder, IconGripVertical, IconPencil, IconTrash } from "@tabler/icons-react";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { DropdownMenuTrigger, DropdownMenu, DropdownMenuContent, DropdownMenuLabel, DropdownMenuSeparator, DropdownMenuItem, DropdownMenuShortcut } from "@/components/ui/dropdown-menu";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 import { useSortable } from "@dnd-kit/sortable";
+import { DatabaseDialect } from "@/lib/database";
+import { useDatabaseInvalidIdentifier } from "@/features/database/hooks/use-invalid-identifier";
+import { isValidIdentifier } from "@/utils/database";
+import { cn } from "@/lib/utils";
 
 
 
 export interface TableAccordionHeaderProps {
     table: TableType,
     isOpen?: boolean,
+    dialect?: DatabaseDialect
 }
 
 
-const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOpen }) => {
+const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOpen, dialect }) => {
 
     const { editTable, deleteTable, createField, createTable, createIndex, getInteger } = useDatabaseOperations();
 
@@ -36,14 +41,31 @@ const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOp
     const [editMode, setEditMode] = useState<boolean>(false);
     const { focusOnTable } = useDiagramOps();
 
+    const { identifierError, setIdentifierError, showIdentifierError, identifierMaxLength } = useDatabaseInvalidIdentifier(tableName, dialect);
+
+
     useEffect(() => {
         setTableName(table.name);
-    }, [table.name])
+    }, [table.name]);
+
+    useEffect(() => {
+        setIdentifierError(isValidIdentifier(
+            tableName.trim(),
+            dialect
+        ))
+    }, [tableName]);
 
     const saveTableName = useCallback(async () => {
-        await editTable({ id: table.id, name: tableName } as TableInsertType);
+        if (identifierError == "empty") {
+            setTableName(table.name);
+            setEditMode(false);
+            return;
+        }
+
+        await editTable({ id: table.id, name: tableName.trim() } as TableInsertType);
         setEditMode(false);
-    }, [tableName])
+    }, [tableName, identifierError, table])
+
 
     const onDeleteTable = useCallback(async (event: any) => {
         event.stopPropagation();
@@ -74,10 +96,10 @@ const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOp
             unique: false,
             tableId: table.id
         } as IndexInsertType);
- 
+
     }, [table])
 
-    const duplicate = useCallback(async (event : any) => {
+    const duplicate = useCallback(async (event: any) => {
         event.stopPropagation()
         const clonedTable: TableType = cloneTable(table);
         await createTable(clonedTable)
@@ -110,9 +132,10 @@ const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOp
                     <div className="w-full flex items-center ">
                         <Tooltip>
                             <TooltipTrigger asChild>
-
                                 <label
-                                    className=" py-2 truncate  text-sm cursor-pointer max-w-60"
+                                    className={cn("py-2 truncate  text-sm cursor-pointer max-w-50 ", {
+                                        "text-destructive": identifierError != null
+                                    })}
                                     onDoubleClick={() => setEditMode(true)}
                                     onClick={((event: any) => event.stopPropagation())}
                                 >
@@ -129,7 +152,6 @@ const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOp
                         <Button variant="outline" size="icon" className="size-8 shrink-0" onClick={(event: any) => {
                             event.stopPropagation();
                             setEditMode(true)
-
                         }}>
                             <IconPencil className="size-4 text-muted-foreground " />
                         </Button>
@@ -140,8 +162,24 @@ const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOp
                             <IconFocus2 className="size-4 text-muted-foreground " />
                         </Button>
                     </div>
+                    {
+                        identifierError &&
+                        <Tooltip>
+                            <TooltipTrigger asChild>
+                                <Button variant={"ghost"} size="icon" className="size-8 shrink-0 hover:bg-destructive/10 hover:border-destructive/30 dark:hover:bg-destructive/10 dark:hover:border-destructive/30" onClick={(event: any) => {
+                                    event.stopPropagation();
+                                    showIdentifierError();
+                                    setEditMode(true);
+                                }} >
+                                    <IconAlertTriangle className="size-4 text-destructive " />
+                                </Button>
+                            </TooltipTrigger>
+                            <TooltipContent className="bg-destructive fill-destructive [&_svg]:bg-destructive [&_svg]:fill-destructive">
+                                {t("db_controller.validation.error_message")}
+                            </TooltipContent>
+                        </Tooltip>
+                    }
                 </>
-
             }
             {
                 editMode && <>
@@ -152,9 +190,13 @@ const TableAccordionHeader: React.FC<TableAccordionHeaderProps> = ({ table, isOp
                         onBlur={saveTableName}
                         autoFocus
                         type="text"
+                        aria-invalid={identifierError != null}
                         onClick={(event) => event.stopPropagation()}
-                        className="h-8"
-                            onKeyDown={(e: any) => {
+                        className={cn("h-8", {
+                            "text-destructive": identifierError != null
+                        })}
+                        maxLength={identifierMaxLength}
+                        onKeyDown={(e: any) => {
                             if (e.key === "Enter") {
                                 e.preventDefault();
                                 saveTableName();
diff --git a/src/features/database/components/field.tsx b/src/features/database/components/field.tsx
index 4365440..e3b6d91 100644
--- a/src/features/database/components/field.tsx
+++ b/src/features/database/components/field.tsx
@@ -2,10 +2,8 @@
 import { FieldType } from "@/lib/schemas/field-schema";
 import { useDatabaseOperations } from "@/providers/database-provider/database-provider";
 import { useDiagramOps } from "@/providers/diagram-provider/diagram-provider";
-
 import { Handle, Position } from "@xyflow/react";
 import React, { useCallback, useEffect, useState } from "react";
-
 import hash from 'object-hash';
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 import { IconCheck, IconKey, IconKeyframe, IconMessageCircle, IconPencil, IconTrash } from "@tabler/icons-react";
@@ -18,7 +16,8 @@ interface Props {
     showHandles?: boolean,
     highlight?: boolean,
     color?: string,
-    className?: string
+    className?: string,
+    maxLength?: number
 }
 
 
@@ -29,7 +28,7 @@ export const TARGET_PREFIX = "target_";
 
 const Field: React.FC<Props> = (props) => {
 
-    const { field, showHandles, highlight, color, className } = props;
+    const { field, showHandles, highlight, color, className, maxLength } = props;
     const [editMode, setEditMode] = useState<boolean>(false);
     const { deleteField, editField } = useDatabaseOperations();
     const [fieldName, setFieldName] = useState<string>(field.name);
@@ -46,13 +45,18 @@ const Field: React.FC<Props> = (props) => {
 
     const saveFieldName = useCallback(() => {
 
+        if (fieldName.trim().length == 0) {
+            setFieldName(field.name);
+            setEditMode(false);
+            return;
+        }
         editField({
             id: field.id,
-            name: fieldName
+            name: fieldName.trim()
         } as FieldType);
 
         setEditMode(false);
-    }, [fieldName]);
+    }, [fieldName, field]);
 
 
     return (
@@ -103,6 +107,7 @@ const Field: React.FC<Props> = (props) => {
                             onClick={(e) => e.stopPropagation()}
                             onChange={(e) => setFieldName(e.target.value)}
                             className="h-6 font-bold pb-1.5 rounded-sm px-1"
+                            maxLength={maxLength}
                             onKeyDown={(e: any) => {
                                 if (e.key === "Enter") {
                                     e.preventDefault();
diff --git a/src/features/database/components/rename-db.tsx b/src/features/database/components/rename-db.tsx
index 30d39a4..545aed0 100644
--- a/src/features/database/components/rename-db.tsx
+++ b/src/features/database/components/rename-db.tsx
@@ -95,17 +95,23 @@ const RenameDB: React.FC = ({ }) => {
                         value={dbName}
                         onBlur={saveDatabaseName}
                         autoFocus
+                        onKeyDown={(e: any) => {
+                            if (e.key === "Enter") {
+                                e.preventDefault();
+                                saveDatabaseName();
+                                e.target.blur();
+                            }
+                        }}
                         className="h-8 min-w-[164px]"
+                        maxLength={255}
+                        aria-invalid={dbName.length == 0}
                     />
                     <Button
                         variant="default"
-
                         size="sm"
                         color="primary"
                         onClick={saveDatabaseName}
-
-
-                        disabled={isLoading}
+                        disabled={isLoading || dbName.length == 0}
                     >
                         {isLoading && <Spinner />}
                         <Save className="size-3" />
diff --git a/src/features/database/components/table.tsx b/src/features/database/components/table.tsx
index 3c6da78..e3edd68 100644
--- a/src/features/database/components/table.tsx
+++ b/src/features/database/components/table.tsx
@@ -25,13 +25,14 @@ export type TableProps = Node<{
     table: TableType,
     overlapping?: boolean,
     pulsing?: boolean,
-    highlightedEdges: Edge[]
+    highlightedEdges: Edge[],
+    identifierMaxLength: number
 }>
 
 const MAX_FIELDS = 10;
 const Table: React.FC<NodeProps<TableProps>> = (props) => {
 
-    const { selected, data: { table, overlapping = false, pulsing = false, highlightedEdges = [] } } = props
+    const { selected, data: { table, overlapping = false, pulsing = false, highlightedEdges = [], identifierMaxLength } } = props
 
     const [editMode, setEditMode] = useState<boolean>(false);
     const [tableName, setTableName] = useState<string>(table.name);
@@ -46,9 +47,14 @@ const Table: React.FC<NodeProps<TableProps>> = (props) => {
     }, [table.name])
 
     const saveTableName = useCallback(async () => {
-        await editTable({ id: table.id, name: tableName } as TableInsertType);
+        if (tableName.trim().length == 0) {
+            setTableName(table.name);
+            setEditMode(false);
+            return;
+        }
+        await editTable({ id: table.id, name: tableName.trim() } as TableInsertType);
         setEditMode(false);
-    }, [tableName]);
+    }, [tableName, table]);
 
     const focus = useCallback(() => {
         focusOnTable(table.id, false);
@@ -56,7 +62,7 @@ const Table: React.FC<NodeProps<TableProps>> = (props) => {
 
 
     const fields: React.ReactNode[] = useMemo(() => {
-        return table.fields.map((field: FieldType , index : number) => {
+        return table.fields.map((field: FieldType, index: number) => {
 
             const highlight: boolean = highlightedEdges.find((edge: any) =>
                 (edge.data?.relationship as RelationshipType).sourceFieldId == field.id ||
@@ -68,10 +74,11 @@ const Table: React.FC<NodeProps<TableProps>> = (props) => {
                 showHandles={selected}
                 highlight={highlight}
                 color={table.color as string}
-                className={ index == table.fields.length - 1 ? "!rounded-b-md" : undefined }
+                className={index == table.fields.length - 1 ? "!rounded-b-md" : undefined}
+                maxLength={identifierMaxLength}
             />)
         })
-    }, [table.fields, selected, highlightedEdges]);
+    }, [table.fields, selected, highlightedEdges, identifierMaxLength]);
 
 
     const toggleShowMore = useCallback(() => {
@@ -79,7 +86,7 @@ const Table: React.FC<NodeProps<TableProps>> = (props) => {
     }, []);
 
     return (
-          <Card
+        <Card
             className={cn(
                 "rounded-lg p-0.5  gap-0  transition-all duration-200  border-none ring-1 ring-slate-300 shadow-xs dark:ring-border  ",
                 overlapping
@@ -116,17 +123,17 @@ const Table: React.FC<NodeProps<TableProps>> = (props) => {
                 {!editMode ? <>
                     <label
                         className=" w-full text-editable truncate  py-0.5 text-sm font-bold  text-primary"
-                        onDoubleClick={ () => setEditMode(true)  }
+                        onDoubleClick={() => setEditMode(true)}
                         style={{ color: table.color as string }}
                     >
                         {tableName}
                     </label>
                     <div className="flex gap-1 hidden shrink-0 flex-row group-hover:flex  ">
-                        
-                            <Button variant="outline" size="icon" className="size-6 shrink-0 shadow-sm rounded-sm" onClick={() => setEditMode(true)}>
-                                <IconPencil className="size-3 text-muted-foreground " />
-                            </Button>
-                        
+
+                        <Button variant="outline" size="icon" className="size-6 shrink-0 shadow-sm rounded-sm" onClick={() => setEditMode(true)}>
+                            <IconPencil className="size-3 text-muted-foreground " />
+                        </Button>
+
                         <Button variant="outline" size="icon" className="size-6 shrink-0 shadow-sm rounded-sm" onClick={focus}>
                             <IconFocus2 className="size-3 text-muted-foreground " />
                         </Button>
@@ -144,6 +151,7 @@ const Table: React.FC<NodeProps<TableProps>> = (props) => {
                             onChange={(event: any) => setTableName(event.target.value)}
                             value={tableName}
                             onBlur={saveTableName}
+                            maxLength={identifierMaxLength}
                             style={{ color: table.color as string }}
                             onKeyDown={(e: any) => {
                                 if (e.key === "Enter") {
diff --git a/src/hooks/use-highlighted-edges.tsx b/src/features/database/hooks/use-highlighted-edges.tsx
similarity index 100%
rename from src/hooks/use-highlighted-edges.tsx
rename to src/features/database/hooks/use-highlighted-edges.tsx
diff --git a/src/features/database/hooks/use-invalid-identifier.tsx b/src/features/database/hooks/use-invalid-identifier.tsx
new file mode 100644
index 0000000..99ae048
--- /dev/null
+++ b/src/features/database/hooks/use-invalid-identifier.tsx
@@ -0,0 +1,70 @@
+import useToast from "@/hooks/use-toast";
+import { DatabaseDialect, DatabaseType, getDatabaseByDialect, IDENTIFIER_ERROR, IDENTIFIER_MAX_LENGTH } from "@/lib/database";
+import { isValidIdentifier } from "@/utils/database";
+import { Dispatch, SetStateAction, useCallback, useEffect, useMemo, useState } from "react";
+import { useTranslation } from "react-i18next";
+
+
+
+interface databaseInvalidIdentifierType {
+    identifierError: IDENTIFIER_ERROR,
+    setIdentifierError: Dispatch<SetStateAction<IDENTIFIER_ERROR>>,
+    showIdentifierError: () => void,
+    identifierMaxLength: number;
+    identifierType? : 'table' | 'constraint' | "index" | "column"
+}
+
+export const useDatabaseInvalidIdentifier = (identifier: string, dialect?: DatabaseDialect , identifierType = "table"): databaseInvalidIdentifierType => {
+
+    const raise = useToast();
+    const { t } = useTranslation();
+
+    const [identifierError, setIdentifierError] = useState<IDENTIFIER_ERROR>(null);
+
+    const identifierMaxLength = useMemo(() => {
+        return dialect ? IDENTIFIER_MAX_LENGTH[dialect] : 255
+    }, [dialect])
+
+
+    useEffect(() => {
+        setIdentifierError(isValidIdentifier(
+            identifier.trim(),
+            dialect
+        ))
+    }, [identifier]);
+
+    const showIdentifierError = useCallback(() => {
+        let title: string | undefined;
+        let description: string | undefined;
+        const identifier: string = t(`db_controller.validation.identifiers.${identifierType}`);
+
+        if (identifierError == "empty") {
+            title = t("db_controller.validation.identifier_required").replace("${identifier}", identifier.toLocaleLowerCase())
+            description = t("db_controller.validation.identifier_required_description").replace("${identifier}", identifier)
+        }
+        if (identifierError == "invalid") {
+            title = t("db_controller.validation.invalid_identifier").replace("${identifier}", identifier.toLocaleLowerCase())
+            description = t("db_controller.validation.invalid_identifier_description").replace("${identifier}", identifier.toLocaleLowerCase())
+        }
+
+        if (identifierError === "max_length" && dialect) {
+            const databaseType: DatabaseType = getDatabaseByDialect(dialect)
+            title = t("db_controller.validation.identifier_length").replace("${identifier}", identifier)
+            description = t("db_controller.validation.identifier_length_description")
+                .replace("${identifier}", identifier.toLocaleLowerCase())
+                .replace("${dialect}", databaseType.name).replace("${length}", String(identifierMaxLength))
+        }
+        if (title && description) {
+            raise(title, description, "ERROR")
+        }
+
+    }, [identifierError, identifierMaxLength, dialect , identifierType]);
+
+
+    return {
+        identifierError,
+        setIdentifierError,
+        showIdentifierError,
+        identifierMaxLength
+    }
+}
\ No newline at end of file
diff --git a/src/hooks/use-overlapping-tables.tsx b/src/features/database/hooks/use-overlapping-tables.tsx
similarity index 100%
rename from src/hooks/use-overlapping-tables.tsx
rename to src/features/database/hooks/use-overlapping-tables.tsx
diff --git a/src/hooks/use-relationship-to-edge.tsx b/src/features/database/hooks/use-relationship-to-edge.tsx
similarity index 100%
rename from src/hooks/use-relationship-to-edge.tsx
rename to src/features/database/hooks/use-relationship-to-edge.tsx
diff --git a/src/hooks/use-table-to-node.tsx b/src/features/database/hooks/use-table-to-node.tsx
similarity index 74%
rename from src/hooks/use-table-to-node.tsx
rename to src/features/database/hooks/use-table-to-node.tsx
index 74c7658..fe8a5aa 100644
--- a/src/hooks/use-table-to-node.tsx
+++ b/src/features/database/hooks/use-table-to-node.tsx
@@ -1,17 +1,22 @@
 
 import { TableType } from "@/lib/schemas/table-schema";
 import { Node, useReactFlow } from "@xyflow/react";
-import { useEffect } from "react";
+import { useEffect, useMemo } from "react";
 import { getDefaultTableOverlapping } from "@/utils/tables";
 import hash from "object-hash";
+import { DatabaseDialect, IDENTIFIER_MAX_LENGTH } from "@/lib/database";
 
 
 
-export const useTableToNode = (tables: TableType[]): void => {
+export const useTableToNode = (tables: TableType[], dialect?: DatabaseDialect): void => {
     const { setNodes } = useReactFlow();
-    
-    useEffect(() => {     
-        
+
+    const identifierMaxLength = useMemo(() => {
+        return dialect ? IDENTIFIER_MAX_LENGTH[dialect] : 255
+    }, [dialect]);
+
+    useEffect(() => {
+
         const tableNodes = tables.map((table: TableType) => {
             return {
                 id: table.id,
@@ -24,29 +29,30 @@ export const useTableToNode = (tables: TableType[]): void => {
                     table,
                     overlapping: getDefaultTableOverlapping(table, tables),
                     pulsing: false,
-                    highlightedEdges: []
+                    highlightedEdges: [] , 
+                    identifierMaxLength
                 },
                 style: {
                     width: 224
                 }
             } as Node
-        }) ; 
+        });
 
         setNodes((nodes) => {
             return tableNodes.map((tableNode) => {
                 const node: Node | undefined = nodes.find((node: Node) => node.id == tableNode.id);
-                
+
                 if (!node)
                     return tableNode;
                 else {
                     const hashNode: string = hash(node.data.table as TableType);
                     const hashTableNode: string = hash(tableNode.data.table as TableType);
-                
+
                     return hashNode == hashTableNode ? node : tableNode;
                 }
             })
-        }); 
-        
+        });
+
     }, [tables])
 
 }
\ No newline at end of file
diff --git a/src/features/database/modals/create-database-modal.tsx b/src/features/database/modals/create-database-modal.tsx
index 4ccdd95..c3ba659 100644
--- a/src/features/database/modals/create-database-modal.tsx
+++ b/src/features/database/modals/create-database-modal.tsx
@@ -1,4 +1,4 @@
- 
+
 import Modal, { ModalProps } from "@/components/modal"
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
@@ -32,14 +32,14 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
     }
 
     const createNewDatabase = useCallback(async (withImport: boolean = false) => {
-        const databaseId: string = v4() ; 
+        const databaseId: string = v4();
 
         return new Promise(async (res, rej) => {
             try {
                 await createDatabase({
                     id: databaseId,
                     name: dbName,
-                    dialect: selectedDbType  as any
+                    dialect: selectedDbType as any
                 });
                 await switchDatabase(databaseId);
                 if (withImport)
@@ -50,11 +50,11 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
             } catch (error) {
                 rej(error);
             }
-        }) 
+        })
     }, [selectedDbType, dbName])
 
     useEffect(() => {
-        setIsValid((selectedDbType  && dbName.trim().length > 0) as boolean)
+        setIsValid((selectedDbType && dbName.trim().length > 0) as boolean)
     }, [selectedDbType, dbName]);
 
     return (
@@ -64,7 +64,7 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
             onOpenChange={onOpenChange}
             title={t("modals.pick_database")}
             actionName={t("modals.create")}
- 
+
             isDisabled={!isValid}
             actionHandler={createNewDatabase}
             description={t("modals.create_database_header")}
@@ -81,10 +81,11 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
                             aria-invalid={dbName.trim().length == 0}
                             onChange={(event: any) => setDbName(event.target.value)}
                             placeholder={t("modals.db_name")}
+                            maxLength={255}
                         />
                         {
                             dbName.trim().length == 0 &&
-                            <p className="text-destructive">
+                            <p className="text-destructive text-xs">
                                 {t("modals.db_name_error")}
                             </p>
                         }
@@ -99,9 +100,9 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
 
                                     <Label htmlFor={db.dialect}
                                         className={cn("w-full p-3 rounded-md border hover:bg-secondary cursor-pointer",
-                                            (selectedDbType == db.dialect && !db.comming )? "border-primary bg-primary/20 " : "" , 
-                                            ( db.comming )? "opacity-75 hover:bg-background cursor-default" : ""
-                                            
+                                            (selectedDbType == db.dialect && !db.comming) ? "border-primary bg-primary/20 " : "",
+                                            (db.comming) ? "opacity-75 hover:bg-background cursor-default" : ""
+
 
                                         )}>
                                         <RadioGroupItem disabled={db.comming} value={db.dialect} id={db.dialect} className="sr-only" />
@@ -113,7 +114,7 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
                                             {db.name}
                                         </span>
                                         {
-                                            db.comming && 
+                                            db.comming &&
                                             <Badge className="absolute -top-2 left-[50%] -translate-x-[50%] bg-chart-5 dark:bg-chart-3">
                                                 Comming
                                             </Badge>
@@ -123,7 +124,7 @@ export const CreateDatabaseModal: React.FC<ModalProps> = (props) => {
                             ))
                         }
                     </RadioGroup>
-                
+
                     <div className="py-4 space-y-2">
                         <Button
                             variant="ghost"
diff --git a/src/i18/index.ts b/src/i18/index.ts
index 796870d..1620012 100644
--- a/src/i18/index.ts
+++ b/src/i18/index.ts
@@ -44,8 +44,11 @@ i18n.use(LanguageDetector)
     .use(initReactI18next)
     .init({
         resources,
-        lng: 'en',
-
+ 
+      detection: {
+            order: ['localStorage'],
+            caches: ['localStorage'],
+        },
         interpolation: {
             escapeValue: false,
         },
diff --git a/src/i18/languages/ar.ts b/src/i18/languages/ar.ts
index 5da08f9..a63f9dc 100644
--- a/src/i18/languages/ar.ts
+++ b/src/i18/languages/ar.ts
@@ -28,6 +28,9 @@ export const ar = {
       show_code: "عرض الكود",
       fields: "الحقول",
       indexes: "الفهارس",
+      
+      no_index: "لم يتم العثور على فهارس",
+      create_new_index: "إنشاء فهرس جديد",
       note: "ملاحظة",
       name: "الاسم",
       type: "النوع",
@@ -84,6 +87,12 @@ export const ar = {
         text_setting: "إعداد النص",
         charset: "ترميز الحروف",
         collation: "التجميع",
+        no_charset: "لا توجد مجموعة أحرف",
+        no_collation: "لا يوجد ترتيب",
+        input_tag_placeholder: "أدخل القيم، مفصولة بفواصل...",
+        multi_select_placeholder: "حدد الحقول...",
+        date_placeholder: "اختر تاريخًا",
+        time: "الوقت",
         scale: "المقياس",
         max_length: "الطول الأقصى",
         integer_width: "عرض العدد الصحيح",
@@ -96,7 +105,7 @@ export const ar = {
         precision_def: "إجمالي الأرقام المسموحة (قبل + بعد الفاصلة).",
         scale_def: "عدد الأرقام بعد الفاصلة.",
         no_default: "لا توجد قيمة افتراضية",
-random_uuid: "معرّف UUID عشوائي",
+        random_uuid: "معرّف UUID عشوائي",
         time_default_value: {
           no_value: "لا توجد قيمة",
           custom: "وقت مخصص",
@@ -129,6 +138,21 @@ random_uuid: "معرّف UUID عشوائي",
         description: "يحتوي المخطط الخاص بك على علاقة مفتاح خارجي دائرية بين الجداول. لإصلاحها،",
         suggestion: "قم بإزالة إحدى العلاقات أدناه التي تسبب الدورة.",
         remove_relationship: "إزالة العلاقة"
+      },
+      validation: {
+        identifiers: {
+          table: "جدول",
+          column: "عمود",
+          index: "فهرس",
+          constraint: "قيد"
+        },
+        error_message: "معرّف غير صالح",
+        identifier_required: "اسم ${identifier} مطلوب",
+        identifier_required_description: "يرجى إدخال اسم لـ ${identifier}.",
+        invalid_identifier: "اسم ${identifier} غير صالح",
+        invalid_identifier_description: "استخدم الأحرف والأرقام والشرطات السفلية فقط. يجب أن يبدأ اسم ${identifier} بحرف.",
+        identifier_length: "اسم ${identifier} طويل جدًا",
+        identifier_length_description: "يتجاوز اسم ${identifier} هذا الحد الأقصى للطول وهو ${length} بايت الذي يسمح به ${dialect}."
       }
     },
     table: {
diff --git a/src/i18/languages/de.ts b/src/i18/languages/de.ts
index e7c74bb..c09637e 100644
--- a/src/i18/languages/de.ts
+++ b/src/i18/languages/de.ts
@@ -28,6 +28,8 @@ export const de = {
       show_code: "Code anzeigen",
       fields: "Felder",
       indexes: "Indizes",
+      no_index: "Keine Indizes gefunden",
+      create_new_index: "Neuen erstellen",
       note: "Notiz",
       name: "Name",
       type: "Typ",
@@ -84,6 +86,12 @@ export const de = {
         text_setting: "Texteinstellung",
         charset: "Zeichensatz",
         collation: "Sortierung",
+        no_charset: "Kein Zeichensatz",
+        no_collation: "Keine Sortierung",
+        input_tag_placeholder: "Werte eingeben, durch Kommas getrennt...",
+        multi_select_placeholder: "Felder auswählen...",
+        date_placeholder: "Datum auswählen",
+        time: "Uhrzeit",
         scale: "Skalierung",
         max_length: "Maximale Länge",
         integer_width: "Ganzzahlbreite",
@@ -96,7 +104,7 @@ export const de = {
         precision_def: "Zulässige Gesamtanzahl an Ziffern (vor + nach dem Dezimalpunkt).",
         scale_def: "Ziffern nach dem Dezimalpunkt.",
         no_default: "Kein Standardwert",
-random_uuid: "Zufällige UUID",
+        random_uuid: "Zufällige UUID",
         time_default_value: {
           no_value: "Kein Wert",
           custom: "Benutzerdefinierte Zeit",
@@ -129,6 +137,21 @@ random_uuid: "Zufällige UUID",
         description: "Dein Schema enthält eine zirkuläre Fremdschlüssel-Beziehung zwischen Tabellen. Um dies zu beheben,",
         suggestion: "entferne eine der unten aufgeführten Beziehungen, die den Kreis verursachen.",
         remove_relationship: "Beziehung entfernen"
+      },
+      validation: {
+        identifiers: {
+          table: "Tabelle",
+          column: "Spalte",
+          index: "Index",
+          constraint: "Einschränkung"
+        },
+        error_message: "Ungültiger Bezeichner",
+        identifier_required: "Der Name von ${identifier} ist erforderlich",
+        identifier_required_description: "Bitte geben Sie einen Namen für diesen ${identifier} an.",
+        invalid_identifier: "Ungültiger Name für ${identifier}",
+        invalid_identifier_description: "Verwenden Sie nur Buchstaben, Zahlen und Unterstriche. Der Name von ${identifier} muss mit einem Buchstaben beginnen.",
+        identifier_length: "Der Name von ${identifier} ist zu lang",
+        identifier_length_description: "Dieser Name von ${identifier} überschreitet die von ${dialect} zulässige maximale Länge von ${length} Bytes."
       }
     },
     table: {
diff --git a/src/i18/languages/en.ts b/src/i18/languages/en.ts
index f6c84cc..0c7e63b 100644
--- a/src/i18/languages/en.ts
+++ b/src/i18/languages/en.ts
@@ -31,6 +31,8 @@ export const en = {
             show_code: "Show code",
             fields: "Fields",
             indexes: "Indexes",
+            no_index: "No Indices found",
+            create_new_index: "create new one",
             note: "Note",
             name: "Name",
             type: "Type",
@@ -93,6 +95,12 @@ export const en = {
                 text_setting: "Text Setting",
                 charset: "Charset",
                 collation: "Collation",
+                no_charset: "No charset",
+                no_collation: "No collation",
+                input_tag_placeholder: "Enter values, comma separated...",
+                multi_select_placeholder: "Select fields...",
+                date_placeholder: "Pick date",
+                time: "Time",
                 scale: "Scale",
                 max_length: "Max length",
                 integer_width: "Integer Width",
@@ -141,6 +149,21 @@ export const en = {
                 description: "Your schema contains a circular foreign key relationship between tables. To fix it",
                 suggestion: "remove one of the relationships listed below that are causing the cycle.",
                 remove_relationship: "Remove relationship"
+            },
+            validation: {
+                identifiers: {
+                    table: "Table",
+                    column: "Column",
+                    index: "Index",
+                    constraint: "Constraint"
+                },
+                error_message: "Invalid identifier",
+                identifier_required: "${identifier} name is required",
+                identifier_required_description: "Please provide a name for this ${identifier}.",
+                invalid_identifier: "Invalid ${identifier} name",
+                invalid_identifier_description: "Use only letters, numbers, and underscores. a ${identifier} name must start with a letter.",
+                identifier_length: "${identifier} name is too long",
+                identifier_length_description: "This ${identifier} name exceeds ${dialect}'s maximum length of ${length} bytes."
             }
         },
         table: {
diff --git a/src/i18/languages/es.ts b/src/i18/languages/es.ts
index f617bd6..eda465d 100644
--- a/src/i18/languages/es.ts
+++ b/src/i18/languages/es.ts
@@ -5,8 +5,8 @@ export const es = {
     translation: {
         sidebar: {
             tables: "Tablas",
-            relationships: "Relaciones", 
-            documentation : "Documentación"
+            relationships: "Relaciones",
+            documentation: "Documentación"
         },
 
         color_picker: {
@@ -27,6 +27,8 @@ export const es = {
             show_code: "Mostrar código",
             fields: "Campos",
             indexes: "Índices",
+            no_index: "No se encontraron índices",
+            create_new_index: "Crear uno nuevo",
             note: "Nota",
             name: "Nombre",
             type: "Tipo",
@@ -88,6 +90,12 @@ export const es = {
                 text_setting: "Configuración de texto",
                 charset: "Charset",
                 collation: "Intercalación",
+                no_charset: "Sin juego de caracteres",
+                no_collation: "Sin intercalación",
+                input_tag_placeholder: "Introduzca valores separados por comas...",
+                multi_select_placeholder: "Seleccione campos...",
+                date_placeholder: "Seleccione una fecha",
+                time: "Hora",
                 scale: "Escala",
                 max_length: "Longitud máxima",
                 integer_width: "Ancho de entero",
@@ -100,7 +108,7 @@ export const es = {
                 precision_def: "Total de dígitos permitidos (antes + después del decimal).",
                 scale_def: "Dígitos permitidos después del decimal.",
                 no_default: "Sin valor predeterminado",
-random_uuid: "UUID aleatorio",
+                random_uuid: "UUID aleatorio",
                 time_default_value: {
                     no_value: "Sin valor",
                     custom: "Hora personalizada",
@@ -136,6 +144,21 @@ random_uuid: "UUID aleatorio",
                 description: "Tu esquema contiene una relación foránea circular entre tablas. Para corregirlo",
                 suggestion: "elimina una de las relaciones que se indican a continuación y que están causando el ciclo.",
                 remove_relationship: "Eliminar relación"
+            },
+            validation: {
+                identifiers: {
+                    table: "Tabla",
+                    column: "Columna",
+                    index: "Índice",
+                    constraint: "Restricción"
+                },
+                error_message: "Identificador no válido",
+                identifier_required: "El nombre de ${identifier} es obligatorio",
+                identifier_required_description: "Proporcione un nombre para este ${identifier}.",
+                invalid_identifier: "Nombre de ${identifier} no válido",
+                invalid_identifier_description: "Use únicamente letras, números y guiones bajos. El nombre de ${identifier} debe comenzar con una letra.",
+                identifier_length: "El nombre de ${identifier} es demasiado largo",
+                identifier_length_description: "Este nombre de ${identifier} supera la longitud máxima de ${length} bytes permitida por ${dialect}."
             }
         },
         table: {
@@ -202,12 +225,12 @@ random_uuid: "UUID aleatorio",
             delete_database_content: "Esta acción es irreversible y eliminará permanentemente el diagrama.",
             delete: "Eliminar",
             empty_diagram: "Diagrama vacío",
-            create_and_import : "Crear e importar" ,
+            create_and_import: "Crear e importar",
 
             import_database: {
                 title: "Importar tu base de datos",
                 import: "Importar",
-                view_docs : "Ver la documentación" , 
+                view_docs: "Ver la documentación",
                 import_options: "¿Te gustaría importar usando :",
                 import_error: "Error al analizar SQL",
                 import_error_description: "No pudimos importar tu SQL porque contiene sintaxis inválida.",
@@ -275,7 +298,7 @@ random_uuid: "UUID aleatorio",
                 step5: "Finalmente, copia el contenido del archivo <code>.sql</code> en el <bold>editor de código</bold> a continuación."
 
             },
-                  
+
             ssms: {
                 "step1": "Abra SQL Server Management Studio (SSMS).",
                 "step2": "Haga clic derecho en su base de datos y luego seleccione Tareas → Generar scripts en el menú contextual.",
diff --git a/src/i18/languages/fr.ts b/src/i18/languages/fr.ts
index 7f1a5fc..137cce8 100644
--- a/src/i18/languages/fr.ts
+++ b/src/i18/languages/fr.ts
@@ -30,6 +30,8 @@ export const fr = {
             show_code: "Afficher le code",
             fields: "Champs",
             indexes: "Index",
+            no_index: "Aucun index trouvé",
+            create_new_index: "En créer un nouveau",
             note: "Note",
             name: "Nom",
             type: "Type",
@@ -86,6 +88,12 @@ export const fr = {
                 text_setting: "Paramètres de texte",
                 charset: "Jeu de caractères",
                 collation: "Collation",
+                no_charset: "Aucun jeu de caractères",
+                no_collation: "Aucune collation",
+                input_tag_placeholder: "Saisissez des valeurs, séparées par des virgules...",
+                multi_select_placeholder: "Sélectionnez des champs...",
+                date_placeholder: "Sélectionnez une date",
+                time: "Heure",
                 scale: "Échelle",
                 max_length: "Longueur max",
                 integer_width: "Largeur entière",
@@ -131,6 +139,21 @@ export const fr = {
                 description: "Votre schéma contient une relation de clé étrangère circulaire entre les tables. Pour corriger cela,",
                 suggestion: "supprimez l’une des relations ci-dessous qui provoque le cycle.",
                 remove_relationship: "Supprimer la relation"
+            },
+            validation: {
+                identifiers: {
+                    table: "Table",
+                    column: "Colonne",
+                    index: "Index",
+                    constraint: "Contrainte"
+                },
+                error_message: "Identifiant invalide",
+                identifier_required: "Le nom de ${identifier} est requis",
+                identifier_required_description: "Veuillez fournir un nom pour ce ${identifier}.",
+                invalid_identifier: "Nom de ${identifier} invalide",
+                invalid_identifier_description: "Utilisez uniquement des lettres, des chiffres et des underscores. Un nom de ${identifier} doit commencer par une lettre.",
+                identifier_length: "Le nom de ${identifier} est trop long",
+                identifier_length_description: "Ce nom de ${identifier} dépasse la longueur maximale de ${length} octets autorisée par ${dialect}."
             }
         },
         table: {
diff --git a/src/i18/languages/hi.ts b/src/i18/languages/hi.ts
index ec39831..c76976e 100644
--- a/src/i18/languages/hi.ts
+++ b/src/i18/languages/hi.ts
@@ -6,7 +6,7 @@ export const hi = {
             tables: "तालिकाएँ",
             relationships: "रिलेशनशिप्स",
             database: "डेटाबेस",
-            documentation : "दस्तावेज़"
+            documentation: "दस्तावेज़"
         },
 
         color_picker: {
@@ -28,6 +28,8 @@ export const hi = {
             show_code: "कोड दिखाएं",
             fields: "फ़ील्ड्स",
             indexes: "इंडेक्सेस",
+            no_index: "कोई इंडेक्स नहीं मिला",
+            create_new_index: "नया इंडेक्स बनाएं",
             note: "नोट",
             name: "नाम",
             type: "प्रकार",
@@ -82,13 +84,18 @@ export const hi = {
                 zeroFill: "शून्य भरें",
                 autoIncrement: "स्वतः वृद्धि",
                 note: "नोट",
-
                 delete_field: "फ़ील्ड हटाएं",
                 field_note: "फ़ील्ड नोट",
                 precision: "सटीकता",
                 text_setting: "टेक्स्ट सेटिंग",
                 charset: "अक्षरसेट",
                 collation: "कोलेशन",
+                no_charset: "कोई कैरेक्टर सेट नहीं",
+                no_collation: "कोई कॉलेशन नहीं",
+                input_tag_placeholder: "मान दर्ज करें, अल्पविराम से अलग करें...",
+                multi_select_placeholder: "फ़ील्ड चुनें...",
+                date_placeholder: "तारीख चुनें",
+                time: "समय",
                 scale: "स्केल",
                 max_length: "अधिकतम लंबाई",
                 integer_width: "पूर्णांक चौड़ाई",
@@ -101,7 +108,7 @@ export const hi = {
                 precision_def: "कुल अनुमत अंक (दशमलव से पहले और बाद)।",
                 scale_def: "दशमलव के बाद अनुमत अंक।",
                 no_default: "कोई डिफ़ॉल्ट मान नहीं",
-random_uuid: "रैंडम UUID",
+                random_uuid: "रैंडम UUID",
                 time_default_value: {
                     no_value: "कोई मान नहीं",
                     custom: "कस्टम समय",
@@ -136,6 +143,21 @@ random_uuid: "रैंडम UUID",
                 description: "आपकी स्कीमा में तालिकाओं के बीच एक परिपत्र विदेशी कुंजी संबंध है। इसे ठीक करने के लिए",
                 suggestion: "नीचे दी गई चक्र उत्पन्न करने वाली रिलेशनशिप में से एक को हटाएं।",
                 remove_relationship: "रिलेशनशिप हटाएं"
+            },
+            validation: {
+                identifiers: {
+                    table: "तालिका",
+                    column: "कॉलम",
+                    index: "इंडेक्स",
+                    constraint: "बाधा"
+                },
+                error_message: "अमान्य पहचानकर्ता",
+                identifier_required: "${identifier} का नाम आवश्यक है",
+                identifier_required_description: "कृपया इस ${identifier} के लिए एक नाम प्रदान करें।",
+                invalid_identifier: "${identifier} का नाम अमान्य है",
+                invalid_identifier_description: "केवल अक्षरों, संख्याओं और अंडरस्कोर का उपयोग करें। ${identifier} का नाम किसी अक्षर से शुरू होना चाहिए।",
+                identifier_length: "${identifier} का नाम बहुत लंबा है",
+                identifier_length_description: "यह ${identifier} नाम ${dialect} द्वारा अनुमत अधिकतम ${length} बाइट की लंबाई से अधिक है।"
             }
         },
         table: {
@@ -206,7 +228,7 @@ random_uuid: "रैंडम UUID",
             import_database: {
                 title: "अपना डेटाबेस आयात करें",
                 import: "आयात करें",
-                view_docs : "दस्तावेज़ देखें" , 
+                view_docs: "दस्तावेज़ देखें",
                 import_options: "क्या आप निम्न के माध्यम से आयात करना चाहेंगे:",
                 import_error: "SQL पार्सिंग त्रुटि",
                 import_error_description: "हम आपका SQL आयात नहीं कर सके क्योंकि इसमें अमान्य सिंटैक्स है।",
@@ -270,8 +292,8 @@ random_uuid: "रैंडम UUID",
                 step3: "शीर्ष मेनू से <bold>File > Export > Database to SQL file</bold> पर जाएं।",
                 step4: "डायलॉग में <bold>Export schema only</bold> चुनें और <bold>Save</bold> पर क्लिक करें।",
                 step5: "अंत में, <code>.sql</code> फ़ाइल की सामग्री को नीचे दिए गए <bold>code editor</bold> में कॉपी करें।"
-            } , 
-                ssms: {
+            },
+            ssms: {
                 "step1": "SQL Server Management Studio (SSMS) खोलें।",
                 "step2": "अपना डेटाबेस पर राइट-क्लिक करें, फिर संदर्भ मेनू से Tasks → Generate Scripts चुनें।",
                 "step3": "Choose Objects चरण में, Choose specific database objects चुनें, फिर सभी टेबल्स को चेक करें।",
diff --git a/src/i18/languages/pt.ts b/src/i18/languages/pt.ts
index f3ca8e4..42a1899 100644
--- a/src/i18/languages/pt.ts
+++ b/src/i18/languages/pt.ts
@@ -6,7 +6,7 @@ export const pt = {
       tables: "Tabelas",
       relationships: "Relacionamentos",
       database: "Banco de dados",
-      documentation : "Documentação"
+      documentation: "Documentação"
     },
 
     color_picker: {
@@ -15,7 +15,7 @@ export const pt = {
     navbar: {
       rename_db: "Renomear banco de dados",
       search: "Pesquisar",
-      
+
       command: "Digite um comando ou pesquise...",
     },
     db_controller: {
@@ -29,10 +29,12 @@ export const pt = {
       show_code: "Mostrar código",
       fields: "Campos",
       indexes: "Índices",
+      no_index: "Nenhum índice encontrado",
+      create_new_index: "Criar um novo",
       note: "Nota",
       name: "Nome",
       type: "Tipo",
-      
+
       required: "Obrigatório",
       nullable: "Aceita Nulo",
       select_fields: "Selecionar campos",
@@ -90,6 +92,12 @@ export const pt = {
         text_setting: "Configuração de Texto",
         charset: "Charset",
         collation: "Colação",
+        no_charset: "Nenhum conjunto de caracteres",
+        no_collation: "Nenhuma ordenação",
+        input_tag_placeholder: "Insira valores, separados por vírgulas...",
+        multi_select_placeholder: "Selecione os campos...",
+        date_placeholder: "Escolha uma data",
+        time: "Hora",
         scale: "Escala",
         max_length: "Comprimento Máximo",
         integer_width: "Largura do Inteiro",
@@ -102,7 +110,7 @@ export const pt = {
         precision_def: "Dígitos totais permitidos (antes + depois do decimal).",
         scale_def: "Dígitos permitidos após o decimal.",
         no_default: "Sem valor padrão",
-random_uuid: "UUID aleatório",
+        random_uuid: "UUID aleatório",
         time_default_value: {
           no_value: "Sem valor",
           custom: "Hora personalizada",
@@ -137,6 +145,21 @@ random_uuid: "UUID aleatório",
         description: "Seu esquema contém uma relação circular de chave estrangeira entre tabelas. Para corrigir,",
         suggestion: "remova um dos relacionamentos listados abaixo que está causando o ciclo.",
         remove_relationship: "Remover relacionamento"
+      },
+      validation: {
+        identifiers: {
+          table: "Tabela",
+          column: "Coluna",
+          index: "Índice",
+          constraint: "Restrição"
+        },
+        error_message: "Identificador inválido",
+        identifier_required: "O nome de ${identifier} é obrigatório",
+        identifier_required_description: "Forneça um nome para este ${identifier}.",
+        invalid_identifier: "Nome de ${identifier} inválido",
+        invalid_identifier_description: "Use apenas letras, números e sublinhados. O nome de ${identifier} deve começar com uma letra.",
+        identifier_length: "O nome de ${identifier} é muito longo",
+        identifier_length_description: "Este nome de ${identifier} excede o comprimento máximo de ${length} bytes permitido pelo ${dialect}."
       }
     },
     table: {
@@ -207,7 +230,7 @@ random_uuid: "UUID aleatório",
       import_database: {
         title: "Importar seu Banco de Dados",
         import: "Importar",
-        view_docs : "Ver documentação" , 
+        view_docs: "Ver documentação",
         import_options: "Gostaria de importar usando:",
         import_error: "Erro de Análise SQL",
         import_error_description: "Não foi possível importar seu SQL porque contém sintaxe inválida.",
@@ -271,8 +294,8 @@ random_uuid: "UUID aleatório",
         step3: "Vá para <bold>Arquivo > Exportar > Banco de Dados para Arquivo SQL</bold>.",
         step4: "Na janela de diálogo, escolha <bold>Exportar apenas o esquema</bold> e clique em <bold>Salvar</bold>.",
         step5: "Finalmente, copie o conteúdo do arquivo <code>.sql</code> para o <bold>editor de código</bold> abaixo."
-      } ,
-            ssms: {
+      },
+      ssms: {
         "step1": "Abra o SQL Server Management Studio (SSMS).",
         "step2": "Clique com o botão direito no seu banco de dados e selecione Tarefas → Gerar Scripts no menu de contexto.",
         "step3": "Na etapa Escolher Objetos, selecione Escolher objetos específicos do banco de dados e marque todas as tabelas.",
diff --git a/src/i18/languages/ru.ts b/src/i18/languages/ru.ts
index 7933c85..3848892 100644
--- a/src/i18/languages/ru.ts
+++ b/src/i18/languages/ru.ts
@@ -6,7 +6,7 @@ export const ru = {
       tables: "Таблицы",
       relationships: "Связи",
       database: "База данных",
-      documentation : "Документация"
+      documentation: "Документация"
     },
     color_picker: {
       default_color: "Цвет по умолчанию"
@@ -27,6 +27,9 @@ export const ru = {
       show_code: "Показать код",
       fields: "Поля",
       indexes: "Индексы",
+       no_index: "Индексы не найдены",
+      create_new_index: "Создать новый",
+     
       note: "Заметка",
       name: "Имя",
       type: "Тип",
@@ -82,6 +85,13 @@ export const ru = {
         text_setting: "Настройки текста",
         charset: "Кодировка",
         collation: "Сравнение",
+        no_charset: "Кодировка не указана",
+        no_collation: "Сортировка не указана",
+        input_tag_placeholder: "Введите значения через запятую...",
+        multi_select_placeholder: "Выберите поля...",
+        date_placeholder: "Выберите дату",
+        time: "Время",
+
         scale: "Масштаб",
         max_length: "Макс. длина",
         integer_width: "Ширина целого числа",
@@ -94,7 +104,7 @@ export const ru = {
         precision_def: "Общее количество допустимых цифр (до и после запятой).",
         scale_def: "Допустимое количество цифр после запятой.",
         no_default: "Нет значения по умолчанию",
-random_uuid: "Случайный UUID",
+        random_uuid: "Случайный UUID",
         time_default_value: {
           no_value: "Нет значения",
           custom: "Произвольное время",
@@ -127,6 +137,21 @@ random_uuid: "Случайный UUID",
         description: "В вашей схеме есть циклическая связь между таблицами. Чтобы устранить её,",
         suggestion: "удалите одну из перечисленных ниже связей, вызывающих цикл.",
         remove_relationship: "Удалить связь"
+      },
+      validation: {
+        identifiers: {
+          table: "Таблица",
+          column: "Столбец",
+          index: "Индекс",
+          constraint: "Ограничение"
+        },
+        error_message: "Недопустимый идентификатор",
+        identifier_required: "Имя ${identifier} обязательно",
+        identifier_required_description: "Пожалуйста, укажите имя для этого ${identifier}.",
+        invalid_identifier: "Недопустимое имя ${identifier}",
+        invalid_identifier_description: "Используйте только буквы, цифры и символы подчёркивания. Имя ${identifier} должно начинаться с буквы.",
+        identifier_length: "Имя ${identifier} слишком длинное",
+        identifier_length_description: "Это имя ${identifier} превышает максимальную длину в ${length} байт, разрешённую ${dialect}."
       }
     },
     table: {
@@ -191,12 +216,12 @@ random_uuid: "Случайный UUID",
       delete_database_content: "Это действие необратимо и навсегда удалит диаграмму.",
       delete: "Удалить",
       empty_diagram: "Пустая диаграмма",
-      create_and_import : "Создать и импортировать" ,
+      create_and_import: "Создать и импортировать",
 
       import_database: {
         title: "Импортируйте вашу базу данных",
         import: "Импорт",
-        view_docs : "Просмотреть документацию" , 
+        view_docs: "Просмотреть документацию",
         import_options: "Вы хотите импортировать с помощью:",
         import_error: "Ошибка разбора SQL",
         import_error_description: "Не удалось импортировать SQL, так как он содержит недопустимый синтаксис.",
@@ -260,7 +285,7 @@ random_uuid: "Случайный UUID",
         step4: "Выберите <bold>Экспортировать только схему</bold> и нажмите <bold>Сохранить</bold>.",
         step5: "Скопируйте содержимое <code>.sql</code> файла в редактор ниже."
       },
-           ssms: {
+      ssms: {
         "step1": "Откройте SQL Server Management Studio (SSMS).",
         "step2": "Щёлкните правой кнопкой мыши по вашей базе данных, затем выберите Tasks → Generate Scripts в контекстном меню.",
         "step3": "В шаге Choose Objects выберите Select specific database objects и отметьте все таблицы.",
diff --git a/src/i18/languages/zh.ts b/src/i18/languages/zh.ts
index 010512b..02f8a1f 100644
--- a/src/i18/languages/zh.ts
+++ b/src/i18/languages/zh.ts
@@ -28,6 +28,9 @@ export const zh = {
       show_code: "显示代码",
       fields: "字段",
       indexes: "索引",
+      
+      no_index: "未找到索引",
+      create_new_index: "创建新的索引",
       note: "备注",
       name: "名称",
       type: "类型",
@@ -90,6 +93,13 @@ export const zh = {
         text_setting: "文本设置",
         charset: "字符集",
         collation: "排序规则",
+           no_charset: "无字符集",
+        no_collation: "无排序规则",
+        input_tag_placeholder: "输入值，使用逗号分隔...",
+        multi_select_placeholder: "选择字段...",
+        date_placeholder: "选择日期",
+        time: "时间",
+     
         scale: "小数位数",
         max_length: "最大长度",
         integer_width: "整数宽度",
@@ -102,7 +112,7 @@ export const zh = {
         precision_def: "允许的总位数（小数点前+后）。",
         scale_def: "小数点后的位数。",
         no_default: "无默认值",
-random_uuid: "随机 UUID",
+        random_uuid: "随机 UUID",
         time_default_value: {
           no_value: "无值",
           custom: "自定义时间",
@@ -138,6 +148,21 @@ random_uuid: "随机 UUID",
         description: "您的架构中存在表之间的循环外键关系。要修复它，",
         suggestion: "请移除以下导致循环的关系之一。",
         remove_relationship: "移除关系"
+      },
+      validation: {
+        identifiers: {
+          table: "表",
+          column: "列",
+          index: "索引",
+          constraint: "约束"
+        },
+        error_message: "标识符无效",
+        identifier_required: "${identifier} 名称是必需的",
+        identifier_required_description: "请为此 ${identifier} 提供一个名称。",
+        invalid_identifier: "${identifier} 名称无效",
+        invalid_identifier_description: "只能使用字母、数字和下划线。${identifier} 名称必须以字母开头。",
+        identifier_length: "${identifier} 名称过长",
+        identifier_length_description: "此 ${identifier} 名称超过了 ${dialect} 允许的最大长度 ${length} 字节。"
       }
     },
 
diff --git a/src/lib/database.ts b/src/lib/database.ts
index 517a198..6765118 100644
--- a/src/lib/database.ts
+++ b/src/lib/database.ts
@@ -77,6 +77,22 @@ export enum ImportMethodType {
 
 }
 
+export const IDENTIFIER_REGEX = /^[\p{L}_][\p{L}\p{N}_]*$/u;
+
+
+export const IDENTIFIER_MAX_LENGTH: Record<DatabaseDialect, number> = {
+  [DatabaseDialect.POSTGRES]: 63,  // NAMEDATALEN - 1 (63 bytes)
+  [DatabaseDialect.MYSQL]: 64,     // 64 characters
+  [DatabaseDialect.MARIADB]: 64,     // 64 characters
+  [DatabaseDialect.MSSQL]: 128,    // 128 characters
+  [DatabaseDialect.ORACLE]: 128,   // 128 characters (30 in pre-12c)
+  [DatabaseDialect.SQLITE]: 255   // Practically unlimited; application budget
+};
+
+
+export type IDENTIFIER_ERROR = null | "max_length" | "empty" | "invalid" ; 
+
+
 export interface ImportDatabaseMethod {
     id: string;
     name: string;
diff --git a/src/providers/database-provider/database-context.ts b/src/providers/database-provider/database-context.ts
index 5ac9660..97b81eb 100644
--- a/src/providers/database-provider/database-context.ts
+++ b/src/providers/database-provider/database-context.ts
@@ -51,7 +51,7 @@ interface DatabaseOperationsContextType {
     createIndex: (index: IndexInsertType) => Promise<QueryResult>,
     editIndex: (index: IndexInsertType) => Promise<QueryResult>,
     deleteIndex: (id: string) => Promise<void>,
-    editFieldIndices: (indexId: string, fieldIds: string[]) => Promise<void>,
+    editFieldIndices: (indexId: string, fieldIds: string[] , deleteIds : string[]) => Promise<void>,
     // relationship operations
     createRelationship: (relationship: RelationshipInsertType) => Promise<QueryResult>,
     editRelationship: (relationship: RelationshipInsertType) => Promise<QueryResult>,
diff --git a/src/providers/database-provider/database-provider.tsx b/src/providers/database-provider/database-provider.tsx
index 041127f..f59c3f7 100644
--- a/src/providers/database-provider/database-provider.tsx
+++ b/src/providers/database-provider/database-provider.tsx
@@ -256,18 +256,21 @@ const DatabaseProvider: React.FC<Props> = ({ children }) => {
     const editIndex = useCallback(async (index: IndexInsertType): Promise<QueryResult> => {
         return await db.update(indices).set(index).where(eq(indices.id, index.id));
     }, [db]);
-
-    const editFieldIndices = useCallback((indexId: string, fieldIds: string[]): Promise<void> => {
+    const editFieldIndices = useCallback((indexId: string, fieldIds: string[], deleteIds: string[]): Promise<void> => {
+        if (!currentDatabaseId) {
+            throw Error("No Database selected")
+        }
         return db.transaction(async (tx) => {
-            await tx.delete(field_indices).where(eq(field_indices.indexId, indexId));
+            await tx.delete(field_indices).where(inArray(field_indices.id, deleteIds));
             if (fieldIds.length > 0)
                 await tx.insert(field_indices).values(fieldIds.map((fieldId: string) => ({
                     id: v4(),
                     fieldId,
                     indexId,
+                    databaseId: currentDatabaseId
                 })))
         })
-    }, [db])
+    }, [db, currentDatabaseId])
     // CRUD operations for Relationships
     const createRelationship = useCallback(async (relationship: RelationshipInsertType): Promise<QueryResult> => {
         if (currentDatabaseId) {
diff --git a/src/utils/database.ts b/src/utils/database.ts
index 43a374f..5059ffd 100644
--- a/src/utils/database.ts
+++ b/src/utils/database.ts
@@ -6,6 +6,7 @@ import { TableType } from "@/lib/schemas/table-schema";
 import { excludeFields } from "./utils";
 import { IndexType } from "@/lib/schemas/index-schema";
 import { FieldIndexType } from "@/lib/schemas/field_index-schema";
+import { DatabaseDialect, IDENTIFIER_ERROR, IDENTIFIER_MAX_LENGTH, IDENTIFIER_REGEX } from "@/lib/database";
 
 // Define the possible operations that can be performed when diffing databases
 export type DBDiffOperation =
@@ -309,3 +310,20 @@ export function normalizeDatabase(db: DatabaseType): any {
 
 
 
+export const isValidIdentifier = (value: string , dialect : DatabaseDialect | undefined): IDENTIFIER_ERROR => {
+
+    if (value.length == 0) 
+        return "empty" ; 
+    if (  !IDENTIFIER_REGEX.test(value) ) {
+        return "invalid" ; 
+    }
+
+    const max_length = dialect ?  IDENTIFIER_MAX_LENGTH[dialect]  : 255 ; 
+    if (value.length > max_length) 
+        return "max_length" ; 
+
+    return null ; 
+}
+
+
+
diff --git a/src/utils/import/base-sql-importer.ts b/src/utils/import/base-sql-importer.ts
index 9b85630..525226e 100644
--- a/src/utils/import/base-sql-importer.ts
+++ b/src/utils/import/base-sql-importer.ts
@@ -6,7 +6,7 @@ import { DataType } from '@/lib/schemas/data-type-schema';
 import { FieldInsertType } from '@/lib/schemas/field-schema';
 import { IndexInsertType } from '@/lib/schemas/index-schema';
 import { Cardinality, RelationshipInsertType } from '@/lib/schemas/relationship-schema';
-import { TableInsertType  } from '@/lib/schemas/table-schema';
+import { TableInsertType } from '@/lib/schemas/table-schema';
 import { init, parse, ReferentialAction } from '@guanmingchiu/sqlparser-ts';
 import { v4 } from 'uuid';
 
@@ -51,7 +51,7 @@ export class BaseSqlImporter {
                             fk_constraints.push(...tableFkConstraints);
 
                     }
-                } catch (error) { 
+                } catch (error) {
                     errors.push(error as Error);
                 }
 
@@ -145,14 +145,27 @@ export class BaseSqlImporter {
                 } catch (error) {
                     errors.push(error as Error);
                 }
-            } 
+            }
 
             if (tables.length == 0)
-                throw Error("Can't parse sql") 
+                throw Error("Can't parse sql")
             return {
-                tables,
-                relationships,
-                indexes,
+                tables: tables.map((table: TableInsertType) => ({
+                    ...table,
+                    name: table.name.slice(0, 255),
+                    fields: table.fields?.map((field: FieldInsertType) => ({
+                        ...field,
+                        name: field.name.slice(0, 255)
+                    }))
+                })),
+                relationships: relationships.map((relationship: RelationshipInsertType) => ({
+                    ...relationship,
+                    name: relationship.name?.slice(0, 255)
+                })),
+                indexes: indexes.map((index: IndexInsertType) => ({
+                    ...index,
+                    name: index.name.slice(0, 255)
+                })),
                 errors
             }
 
@@ -258,12 +271,12 @@ export class BaseSqlImporter {
         let fk_constraint: any | undefined;
         let params: any[] | undefined;
 
-      
+
         // if it's a basic type like (texts , booleans .. ect) we get the name directly
         // if it's a type that take params , the data type become an object
         if (typeof ast.data_type === "string") {
             typeName = ast.data_type.toLowerCase();
-            
+
 
         } else if (typeof ast.data_type === "object" && !ast.data_type.Custom) {
             const attributeName = Object.keys(ast.data_type)[0];
@@ -289,10 +302,10 @@ export class BaseSqlImporter {
             }
             typeName = attributeName.toLowerCase();
 
-            
-            if (typeName == "timestamp" && this.dialect == DatabaseDialect.ORACLE && ast.data_type[attributeName].length >= 2 && ast.data_type[attributeName][1] == "WithTimeZone") { 
-                typeName += "withtimezone" ; 
-            } 
+
+            if (typeName == "timestamp" && this.dialect == DatabaseDialect.ORACLE && ast.data_type[attributeName].length >= 2 && ast.data_type[attributeName][1] == "WithTimeZone") {
+                typeName += "withtimezone";
+            }
         }
 
         else if (ast.data_type.Custom && Array.isArray(ast.data_type.Custom)) {
@@ -300,9 +313,9 @@ export class BaseSqlImporter {
                 extraParam = Number(ast.data_type.Custom[1]?.[0]);
 
             typeName = ast.data_type.Custom[0]?.[0]?.Identifier?.value.toLowerCase();
-            
+
         }
- 
+
         const dataType: DataType | undefined = this.processDataType(typeName as string);
 
         if (!dataType) {
@@ -478,9 +491,9 @@ export class BaseSqlImporter {
         return ForeignKeyActions.NO_ACTION;
     }
 
-    protected processDataType(typeName: string): DataType | undefined   {
-        
-        
+    protected processDataType(typeName: string): DataType | undefined {
+
+
         // get data type from the supported ones
         return this.data_types.find((dataType: DataType) => {
             let synonyms: string[] = dataType.synonyms ? JSON.parse(dataType.synonyms) : [];
@@ -491,28 +504,28 @@ export class BaseSqlImporter {
     }
 
     protected processDefaultValue(ast: any, dataType: DataType): string | undefined {
-       
+
         if (ast.Value && ast.Value.value) {
-        
+
             const value: any = ast.Value.value;
             if (value.Number && Array.isArray(value.Number) && value.Number.length > 0 && !isNaN(Number(value.Number[0]))) {
                 return value.Number[0];
             }
-        
+
             else if (value.SingleQuotedString || value.DoubleQuotedString) {
                 const valuesArray = Object.values(value);
                 if (valuesArray.length > 0)
                     return valuesArray[0] as string;
             }
-        
+
             else if (value.Boolean) {
                 return "true";
             }
-        
+
             else if (value.NationalStringLiteral) {
                 return value.NationalStringLiteral
             }
-        
+
         } else if (ast.Function) {
             if (dataType.type == DataTypes.TIME) {
                 if (ast.Function.name?.[0]?.Identifier?.value && this.isCurrentTimesTampFunction(ast.Function.name?.[0]?.Identifier?.value))
@@ -529,7 +542,7 @@ export class BaseSqlImporter {
                     return valuesArray[0] as string;
             }
         }
-        
+
         return undefined;
     }
 
diff --git a/src/utils/render/database/base-sql-renderer.ts b/src/utils/render/database/base-sql-renderer.ts
index 54c4d84..f70ab87 100644
--- a/src/utils/render/database/base-sql-renderer.ts
+++ b/src/utils/render/database/base-sql-renderer.ts
@@ -68,11 +68,11 @@ export abstract class BaseSQLRenderer extends BaseDatabaseRenderer {
         return {
             column: {
                 type: "column_ref",
-                column: {
+                column: (this.dialect == DatabaseDialect.MYSQL || this.dialect == DatabaseDialect.MARIADB) ? field.name : ({
                     expr: {
-                        type: "default", value: field.name,
+                        type: "double_quote_string", value: field.name,
                     }
-                },
+                }),
             },
             default_val,
             unique,
@@ -139,12 +139,12 @@ export abstract class BaseSQLRenderer extends BaseDatabaseRenderer {
                         {
                             type: "column_ref",
                             table: null,
-                            column: {
+                             column: (this.dialect == DatabaseDialect.MYSQL || this.dialect == DatabaseDialect.MARIADB) ? foreignKey.name : ({
                                 expr: {
-                                    type: "default",
+                                    type: "double_quote_string",
                                     value: foreignKey.name
                                 }
-                            },
+                            }),
                         }
                     ],
                     constraint_type: "FOREIGN KEY",
@@ -155,12 +155,12 @@ export abstract class BaseSQLRenderer extends BaseDatabaseRenderer {
                             {
                                 type: "column_ref",
                                 table: null,
-                                column: {
+                              column: (this.dialect == DatabaseDialect.MYSQL || this.dialect == DatabaseDialect.MARIADB) ? primaryKey.name : ({
                                     expr: {
-                                        type: "default",
+                                        type: "double_quote_string",
                                         value: primaryKey.name
                                     }
-                                },
+                                })
                             }
                         ],
                         table: [
@@ -292,8 +292,9 @@ export abstract class BaseSQLRenderer extends BaseDatabaseRenderer {
     }
 
 
+    
     protected startTransaction(): string {
-        return "BEGIN TRANSACTION;" ;  
+        return "START TRANSACTION;";
     }
 
     protected commit(): string {
diff --git a/src/utils/render/database/mssql-database-renderer.ts b/src/utils/render/database/mssql-database-renderer.ts
index 46567e7..77edf71 100644
--- a/src/utils/render/database/mssql-database-renderer.ts
+++ b/src/utils/render/database/mssql-database-renderer.ts
@@ -9,7 +9,7 @@ import { DataType } from "@/lib/schemas/data-type-schema";
 import { DatabaseDialect } from "@/lib/database";
 import { format } from 'sql-formatter';
 import { AST } from "node-sql-parser";
- 
+
 export default class MSSqlRenderer extends BaseDatabaseRenderer {
 
 
@@ -33,7 +33,7 @@ ${this.commit()}
 
     protected createTableAst(table: TableType): ASTStatment[] | ASTStatment {
         const ast: any = super.createTableAst(table);
-    
+
         let indexes: string = ast.indices_ast.filter((index: string) => index != null).join("\n")
 
         // get primary keys and check if we hame more than one  
@@ -43,7 +43,7 @@ ${this.commit()}
             constraints = this.getPrimaryKeyContraint(primaryKeys, table)
         }
         return `
-        CREATE TABLE ${table.name} (
+        CREATE TABLE "${table.name}" (
             ${(ast as any).field_definitions.join(",\n")}
             ${constraints ? ',\n' + constraints : ""}
         );
@@ -80,21 +80,21 @@ ${this.commit()}
         let defaultValue: any = "";
 
         if (ast.default_value !== undefined && ast.default_value !== null && !dropDefaultValue) {
-            defaultValue = `CONSTRAINT DF_${table.name}_${field.name} DEFAULT ${ast.default_value}`;
+            defaultValue = `CONSTRAINT "DF_${table.name}_${field.name}" DEFAULT ${ast.default_value}`;
         }
         if (!ast.primary_key) {
-            unique = field.unique ? `CONSTRAINT UQ_${table.name}_${field.name} UNIQUE` : "";
+            unique = field.unique ? `CONSTRAINT "UQ_${table.name}_${field.name}" UNIQUE` : "";
         }
 
         const dataType = field.type.name == "uuid" ? "RAW(16)" : ast.dataType;
 
-        return `${field.name} ${dataType}${options} ${autoIncrement} ${nullable} ${defaultValue} ${unique} `;
+        return `"${field.name}" ${dataType}${options} ${autoIncrement} ${nullable} ${defaultValue} ${unique} `;
     }
 
     protected processDefaultValue(field: FieldType): AST | null {
         const ast: any = super.processDefaultValue(field);
-      
-        if (ast && ast.default_value_type) { 
+
+        if (ast && ast.default_value_type) {
             if (ast.default_value_type == "single_quote_string") {
                 ast.default_value = `'${ast.default_value}'`
             }
@@ -128,25 +128,25 @@ ${this.commit()}
                     else
                         ast.default_value = "NEWID()"
                 }
-                   
+
             }
-            if ( ast.default_value_type == "bool") {  
-                if (ast.default_value) { 
-                    ast.default_value = 1 ; 
-                }else { 
-                    ast.default_value = 0 ; 
+            if (ast.default_value_type == "bool") {
+                if (ast.default_value) {
+                    ast.default_value = 1;
+                } else {
+                    ast.default_value = 0;
                 }
             }
-            
+
         }
 
         return ast;
     }
-    
+
     protected createRelationshipAst(relationship: RelationshipType): ASTStatment {
         const { primaryKey, foreignKey, sourceTable, targetTable } = super.createRelationshipAst(relationship) as any;
 
-        const constraintName: string = relationship.name ? " CONSTRAINT " + relationship.name : "";
+        const constraintName: string = relationship.name ? " CONSTRAINT \"" + relationship.name + "\"" : "";
 
         const onDeleteFKAction: string | null = this.foreignKeyActionToAst(relationship.onDelete as ForeignKeyActions);
         const onUpdateFKAction: string | null = this.foreignKeyActionToAst(relationship.onUpdate as ForeignKeyActions);
@@ -157,9 +157,9 @@ ${this.commit()}
         const FKActions: string = [onDeleteAction, onUpdateAction].join(" ");
 
         return `
-            ALTER TABLE ${targetTable.name}
-            ADD ${constraintName} FOREIGN KEY (${foreignKey.name})
-            REFERENCES ${sourceTable.name}(${primaryKey.name}) ${FKActions};
+            ALTER TABLE "${targetTable.name}"
+            ADD ${constraintName} FOREIGN KEY ("${foreignKey.name}")
+            REFERENCES "${sourceTable.name}"("${primaryKey.name}") ${FKActions};
         `
     }
 
@@ -175,29 +175,30 @@ ${this.commit()}
         }
         return null;
     }
-  
+
     protected createIndexAst(table: TableType, index: IndexType): ASTStatment {
         const unique: string = index.unique ? " UNIQUE" : "";
 
-        let columns: string[] | string = index.fields.map((field: FieldType) => field.name);
+        let columns: string[] | string = index.fields.map((field: FieldType) => `"${field.name}"`);
         if (columns.length == 0)
             return null;
+
         columns = `(${columns.join(",")})`
-        return `CREATE${unique} INDEX ${index.name} ON ${table.name} ${columns} ;`
+
+        return `CREATE${unique} INDEX "${index.name}" ON "${table.name}" ${columns} ;`
 
     }
-  
+
     protected getPrimaryKeyContraint(fields: FieldType[], table?: TableType): ASTStatment {
-        const pks: string[] = fields.map((field: FieldType) => field.name);
-        return `CONSTRAINT PK_${table?.name} PRIMARY KEY (${pks.join(",")})`
-    } 
-     
+        const pks: string[] = fields.map((field: FieldType) => `"${field.name}"`);
+        return `CONSTRAINT "PK_${table?.name}" PRIMARY KEY (${pks.join(",")})`
+    }
     protected startTransaction(): string {
         return `BEGIN TRANSACTION;`
     }
     protected commit(): string {
         return "COMMIT;"
     }
- 
-   
+
+
 } 
\ No newline at end of file
diff --git a/src/utils/render/database/oracle-renderer.ts b/src/utils/render/database/oracle-renderer.ts
index 88ac0b4..104f38a 100644
--- a/src/utils/render/database/oracle-renderer.ts
+++ b/src/utils/render/database/oracle-renderer.ts
@@ -33,7 +33,7 @@ export default class OracleRenderer extends BaseDatabaseRenderer {
             pk_constraint = "";
         let indexes: string = ast.indices_ast.filter((index: string) => index != null).join("\n")
         return `
-        CREATE TABLE ${table.name} (
+        CREATE TABLE "${table.name}" (
             ${(ast as any).field_definitions.join(",\n")}
             ${pk_constraint}
         );
@@ -88,19 +88,19 @@ export default class OracleRenderer extends BaseDatabaseRenderer {
         }
         else if (dataType === "INTERVAL DAY TO SECOND" && options) {
             dataType = `INTERVAL DAY${options} TO SECOND`
-        } 
-        else if (dataType === "INTERVAL YEAR TO MONTH" && options) { 
-            dataType = `INTERVAL YEAR${options} TO MONTH`
-            
         }
-        
-        else 
+        else if (dataType === "INTERVAL YEAR TO MONTH" && options) {
+            dataType = `INTERVAL YEAR${options} TO MONTH`
+
+        }
+
+        else
             dataType = dataType + options
 
-   
+
         //const dataType = field.type.name == "uuid" ? "RAW(16)" : ast.dataType;
 
-        return `${field.name} ${dataType} ${defaultValue} ${nullable} ${unique} ${autoIncrement} ${primaryKey}`;
+        return `"${field.name}" ${dataType} ${defaultValue} ${nullable} ${unique} ${autoIncrement} ${primaryKey}`;
     }
     protected processDefaultValue(field: FieldType): AST | null {
 
@@ -144,26 +144,26 @@ export default class OracleRenderer extends BaseDatabaseRenderer {
     protected createIndexAst(table: TableType, index: IndexType): ASTStatment {
         const unique: string = index.unique ? " UNIQUE" : "";
 
-        let columns: string[] | string = index.fields.map((field: FieldType) => field.name);
+        let columns: string[] | string = index.fields.map((field: FieldType) => `"${field.name}"`);
         if (columns.length == 0)
             return null;
         columns = `(${columns.join(",")})`
-        return `CREATE${unique} INDEX ${index.name} ON ${table.name} ${columns} ;`
+        return `CREATE${unique} INDEX "${index.name}" ON "${table.name}" ${columns} ;`
 
     }
 
     protected createRelationshipAst(relationship: RelationshipType): ASTStatment {
         const { primaryKey, foreignKey, sourceTable, targetTable } = super.createRelationshipAst(relationship) as any;
 
-        const constraintName: string = relationship.name ? " CONSTRAINT " + relationship.name : "";
+        const constraintName: string = relationship.name ? " CONSTRAINT \"" + relationship.name + "\"" : "";
 
         const FKAction: string | null = this.foreignKeyActionToAst(relationship.onDelete as ForeignKeyActions);
         const onDeleteAction: string = FKAction ? `ON DELETE ${FKAction}` : ""
 
         return `
-            ALTER TABLE ${targetTable.name}
-            ADD ${constraintName} FOREIGN KEY (${foreignKey.name})
-            REFERENCES ${sourceTable.name}(${primaryKey.name}) ${onDeleteAction};
+            ALTER TABLE "${targetTable.name}"
+            ADD ${constraintName} FOREIGN KEY ("${foreignKey.name}")
+            REFERENCES "${sourceTable.name}"("${primaryKey.name}") ${onDeleteAction};
         `
     }
 
@@ -180,9 +180,9 @@ export default class OracleRenderer extends BaseDatabaseRenderer {
         return null;
     }
 
-     protected getPrimaryKeyContraint(fields: FieldType[]): ASTStatment {
+    protected getPrimaryKeyContraint(fields: FieldType[]): ASTStatment {
         //throw new Error("Method not implemented.");
-        const pks: string[] = fields.map((field: FieldType) => field.name);
+        const pks: string[] = fields.map((field: FieldType) => `"${field.name}"`);
         return `
          PRIMARY KEY (${pks.join(",")})
         `
diff --git a/src/utils/render/database/sqlite-database-renderer.ts b/src/utils/render/database/sqlite-database-renderer.ts
index f9982b3..ef13a94 100644
--- a/src/utils/render/database/sqlite-database-renderer.ts
+++ b/src/utils/render/database/sqlite-database-renderer.ts
@@ -107,4 +107,9 @@ ${this.commit()}
         throw new Error("Method not implemented.");
     }
 
+    
+     protected startTransaction(): string {
+        return "BEGIN;";
+    }
+
 }
\ No newline at end of file