feat: add Microsoft Access database support

Add Access as a new database type with agent-based connectivity,
UCanAccess JDBC URL parsing, backtick identifier quoting, file-path
connection dialog, and PNG icons for Access/GoldenDB/Vastbase.

src/lib/connectionPresentation.ts

@@ -5,7 +5,7 @@ type ConnectionPresentationConfig = Pick<
   "db_type" | "driver_profile" | "driver_label" | "host" | "port" | "database"
 >;
 
-const LOCAL_DATABASE_TYPES = new Set(["sqlite", "duckdb"]);
+const LOCAL_DATABASE_TYPES = new Set(["sqlite", "duckdb", "access"]);
 
 export function connectionIconType(connection?: Pick<ConnectionConfig, "db_type" | "driver_profile">): string {
   return connection?.driver_profile || connection?.db_type || "postgres";
@@ -45,6 +45,9 @@ export function connectionUrlPlaceholder(dbType: DatabaseType): string {
     case "duckdb":
       return "duckdb:///absolute/path/to/database.duckdb";
 
+    case "access":
+      return "jdbc:ucanaccess:///absolute/path/to/database.accdb";
+
     case "mongodb":
       return "mongodb://user:password@host:port/database";
 

src/lib/connectionUrl.ts

@@ -107,11 +107,36 @@ function parseJdbcSqlServerUrl(source: string): ParsedConnectionUrl | null {
   };
 }
 
+function parseJdbcUCanAccessUrl(source: string): ParsedConnectionUrl | null {
+  const match = source.match(/^jdbc:ucanaccess:\/\/(.+?)(?:;.*)?$/i);
+  if (!match) return null;
+
+  const filePath = decodeUrlPart(match[1]);
+  const normalizedPath = filePath.startsWith("/") || /^[A-Za-z]:[\\/]/.test(filePath) ? filePath : `/${filePath}`;
+  const database = normalizedPath.split(/[\\/]/).filter(Boolean).pop();
+
+  return {
+    dbType: "access",
+    driverProfile: "access",
+    driverLabel: "Microsoft Access",
+    host: normalizedPath,
+    port: 0,
+    username: "",
+    password: "",
+    database,
+    urlParams: "",
+    ssl: false,
+    connectionString: source,
+  };
+}
+
 export function parseConnectionUrl(value: string, preferredProfile?: string): ParsedConnectionUrl {
   const input = value.trim();
   if (!input) {
     throw new Error("Connection URL is empty");
   }
+  const jdbcUCanAccess = parseJdbcUCanAccessUrl(input);
+  if (jdbcUCanAccess) return jdbcUCanAccess;
   const jdbcSqlServer = parseJdbcSqlServerUrl(input);
   if (jdbcSqlServer) return jdbcSqlServer;
   const source = input.replace(/^jdbc:/i, "");

src/lib/dataGridSql.ts

@@ -362,7 +362,8 @@ function buildPrimaryKeyWhere(
   columns: Array<string | undefined>,
   row: GridCellValue[],
 ): string {
-  if (databaseType === "hive" && primaryKeys.length === 0) return buildRowWhere(databaseType, columns, row);
+  if ((databaseType === "hive" || databaseType === "access") && primaryKeys.length === 0)
+    return buildRowWhere(databaseType, columns, row);
   return primaryKeys
     .map((primaryKey) => {
       const value = row[columns.indexOf(primaryKey)];

src/lib/databaseCapabilitySets.ts

@@ -33,6 +33,7 @@ export const DIAGRAM_SUPPORTED_TYPES = new Set<DatabaseType>([
   "highgo",
   "vastbase",
   "goldendb",
+  "access",
   "h2",
   "db2",
 ]);
@@ -52,6 +53,7 @@ export const DATABASE_SEARCH_SUPPORTED_TYPES = new Set<DatabaseType>([
   "highgo",
   "vastbase",
   "goldendb",
+  "access",
   "h2",
   "snowflake",
   "trino",
@@ -83,6 +85,7 @@ export const TABLE_IMPORT_SUPPORTED_TYPES = new Set<DatabaseType>([
   "highgo",
   "vastbase",
   "goldendb",
+  "access",
 ]);
 
 export const TABLE_STRUCTURE_SUPPORTED_TYPES = new Set<DatabaseType>(["mysql", "postgres", "sqlite", "sqlserver"]);
@@ -111,7 +114,7 @@ export const FIELD_LINEAGE_SUPPORTED_TYPES = new Set<DatabaseType>([
   "gaussdb",
 ]);
 
-export const SINGLE_DATABASE_TYPES = new Set<DatabaseType>(["oracle", "dameng"]);
+export const SINGLE_DATABASE_TYPES = new Set<DatabaseType>(["oracle", "dameng", "access"]);
 
 export const FETCH_FIRST_TYPES = new Set<DatabaseType>(["oracle", "dameng"]);
 
@@ -137,6 +140,7 @@ export const AGENT_DRIVER_TYPES = new Set<DatabaseType>([
   "highgo",
   "vastbase",
   "goldendb",
+  "access",
   "oracle",
   "h2",
   "snowflake",

src/lib/databaseTableDataCapabilities.ts

@@ -35,6 +35,15 @@ const DEFAULT_CAPABILITY: DatabaseCapability = {
 };
 
 const DATABASE_CAPABILITY_OVERRIDES: Partial<Record<DatabaseType, Partial<DatabaseCapability>>> = {
+  access: {
+    tableData: {
+      insert: true,
+      updateRequiresPrimaryKey: false,
+      deleteRequiresPrimaryKey: false,
+      requiresTransactionalTableForExistingRows: false,
+      transaction: true,
+    },
+  },
   hive: {
     tableData: {
       insert: true,

src/lib/tableSelectSql.ts

@@ -17,7 +17,7 @@ export interface BuildTableSelectSqlOptions {
 }
 
 export function quoteTableIdentifier(databaseType: DatabaseType | undefined, name: string): string {
-  if (databaseType === "mysql" || databaseType === "hive" || databaseType === "tdengine")
+  if (databaseType === "mysql" || databaseType === "hive" || databaseType === "tdengine" || databaseType === "access")
     return `\`${name.replace(/`/g, "``")}\``;
   if (databaseType === "informix" && /^[A-Za-z_][A-Za-z0-9_$]*$/.test(name)) return name;
   if (databaseType === "neo4j") return quoteCypherIdentifier(name);