🐛 fix(oracle): 修复表结构注释读取与保存报错

- 补齐 Oracle 表字段注释元数据读取

- 在表结构 DDL 中追加表和字段注释信息

- 规范表设计器 Oracle DDL 执行前的分号处理

Refs #482

frontend/src/components/TableDesigner.tsx

@@ -11,6 +11,7 @@ import { DBGetColumns, DBGetIndexes, DBQuery, DBGetForeignKeys, DBGetTriggers, D
 import { hasIndexFormChanged, normalizeIndexFormFromRow, shouldRestoreOriginalIndex, toggleIndexSelection as getNextIndexSelection, type IndexDisplaySnapshot } from './tableDesignerIndexUtils';
 import { buildIndexCreateSqlPreview } from './tableDesignerIndexSql';
 import { buildAlterTablePreviewSql, buildCreateTablePreviewSql, hasAlterTableDraftChanges, type StarRocksCreateTableOptions, type StarRocksDistributionType, type StarRocksKeyModel, type StarRocksTableKind } from './tableDesignerSchemaSql';
+import { normalizeSchemaStatementForExecution, parseTableCommentFromDDL, splitSchemaExecutionStatements } from './tableDesignerExecutionSql';
 import TableDesignerSqlPreview from './TableDesignerSqlPreview';
 import { buildRpcConnectionConfig } from '../utils/connectionRpcConfig';
 import { noAutoCapInputProps } from '../utils/inputAutoCap';
@@ -832,8 +833,7 @@ const TableDesigner: React.FC<{ tab: TabData }> = ({ tab }) => {
     if (ddlRes && ddlRes.success) {
         const ddlText = String(ddlRes.data || '');
         setDdl(ddlText);
-        const commentMatch = ddlText.replace(/\r?\n/g, ' ').match(/COMMENT\s*=\s*'((?:\\'|''|[^'])*)'/i);
-        const parsedTableComment = commentMatch ? commentMatch[1].replace(/\\'/g, "'").replace(/''/g, "'") : '';
+        const parsedTableComment = parseTableCommentFromDDL(ddlText);
         setTableComment(parsedTableComment);
         if (!isTableCommentModalOpen) {
             setTableCommentDraft(parsedTableComment);
@@ -1617,10 +1617,10 @@ ${selectedTrigger.statement}`;
           useSSH: conn.config.useSSH || false,
           ssh: conn.config.ssh || { host: "", port: 22, user: "", password: "", keyPath: "" }
       };
-      const statements = sqlText.split(/;\s*\n/).map(s => s.trim()).filter(Boolean);
+      const dbType = resolveTableInfo().dbType;
+      const statements = splitSchemaExecutionStatements(sqlText);
       for (let i = 0; i < statements.length; i++) {
-          let stmt = statements[i];
-          if (!stmt.endsWith(';')) stmt += ';';
+          const stmt = normalizeSchemaStatementForExecution(statements[i], dbType);
           const res = await DBQuery(buildRpcConnectionConfig(config) as any, tab.dbName || '', stmt);
           if (!res.success) {
               const prefix = statements.length > 1 ? `第 ${i + 1}/${statements.length} 条语句执行失败: ` : '执行失败: ';

frontend/src/components/tableDesignerExecutionSql.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  normalizeSchemaStatementForExecution,
+  parseTableCommentFromDDL,
+  splitSchemaExecutionStatements,
+} from './tableDesignerExecutionSql';
+
+describe('tableDesignerExecutionSql', () => {
+  it('strips trailing semicolons before executing oracle schema statements', () => {
+    expect(
+      normalizeSchemaStatementForExecution(`COMMENT ON COLUMN "H2"."D_YS_MEMCARD_CX"."ID" IS 'ID';`, 'oracle'),
+    ).toBe(`COMMENT ON COLUMN "H2"."D_YS_MEMCARD_CX"."ID" IS 'ID'`);
+  });
+
+  it('keeps trailing semicolons for non-oracle schema statements', () => {
+    expect(normalizeSchemaStatementForExecution('ALTER TABLE `users` ADD COLUMN `age` int', 'mysql'))
+      .toBe('ALTER TABLE `users` ADD COLUMN `age` int;');
+  });
+
+  it('splits generated schema SQL into individual statements', () => {
+    expect(splitSchemaExecutionStatements('ALTER TABLE users ADD age int;\nCOMMENT ON COLUMN users.age IS \'年龄\';'))
+      .toEqual(['ALTER TABLE users ADD age int', "COMMENT ON COLUMN users.age IS '年龄';"]);
+  });
+
+  it('parses mysql and oracle table comments from DDL', () => {
+    expect(parseTableCommentFromDDL("CREATE TABLE `users` (`id` int) COMMENT='用户\\'表';"))
+      .toBe("用户'表");
+    expect(parseTableCommentFromDDL(`CREATE TABLE "HR"."EMPLOYEES" ("ID" NUMBER);
+COMMENT ON TABLE "HR"."EMPLOYEES" IS '员工''表';
+COMMENT ON COLUMN "HR"."EMPLOYEES"."ID" IS '主键';`)).toBe("员工'表");
+  });
+});

frontend/src/components/tableDesignerExecutionSql.ts

@@ -0,0 +1,37 @@
+import { isOracleLikeDialect } from '../utils/sqlDialect';
+
+export const splitSchemaExecutionStatements = (sqlText: string): string[] => (
+  String(sqlText || '')
+    .replace(/；/g, ';')
+    .split(/;\s*\n/)
+    .map(statement => statement.trim())
+    .filter(Boolean)
+);
+
+export const normalizeSchemaStatementForExecution = (statement: string, dbType: string): string => {
+  const trimmed = String(statement || '').trim();
+  if (!trimmed) return '';
+  if (isOracleLikeDialect(dbType)) {
+    return trimmed.replace(/;+\s*$/, '').trim();
+  }
+  return trimmed.endsWith(';') ? trimmed : `${trimmed};`;
+};
+
+const unescapeSqlComment = (text: string, mysqlBackslashEscapes = false): string => {
+  const unescaped = text.replace(/''/g, "'");
+  return mysqlBackslashEscapes ? unescaped.replace(/\\'/g, "'") : unescaped;
+};
+
+export const parseTableCommentFromDDL = (ddlText: string): string => {
+  const ddl = String(ddlText || '').replace(/\r?\n/g, ' ');
+  const mysqlMatch = ddl.match(/COMMENT\s*=\s*'((?:\\'|''|[^'])*)'/i);
+  if (mysqlMatch) {
+    return unescapeSqlComment(mysqlMatch[1], true);
+  }
+
+  const commentOnTableMatch = ddl.match(/\bCOMMENT\s+ON\s+TABLE\s+.+?\s+IS\s+(NULL|'((?:''|[^'])*)')/i);
+  if (!commentOnTableMatch || commentOnTableMatch[1].toUpperCase() === 'NULL') {
+    return '';
+  }
+  return unescapeSqlComment(commentOnTableMatch[2] || '');
+};