diff --git a/backend/plugin/code_generator/api/v1/code.py b/backend/plugin/code_generator/api/v1/code.py
index 69c8e026..a58c0b6b 100644
--- a/backend/plugin/code_generator/api/v1/code.py
+++ b/backend/plugin/code_generator/api/v1/code.py
@@ -19,7 +19,7 @@ router = APIRouter()
 @router.get('/tables', summary='获取数据库表')
 async def get_all_tables(
     table_schema: Annotated[str, Query(description='数据库名')] = 'fba',
-) -> ResponseSchemaModel[list[dict[str, str]]]:
+) -> ResponseSchemaModel[list[dict[str, str | None]]]:
     data = await gen_service.get_tables(table_schema=table_schema)
     return response_base.success(data=data)
 
diff --git a/backend/plugin/code_generator/crud/crud_code.py b/backend/plugin/code_generator/crud/crud_code.py
index a756cfc9..6b695240 100644
--- a/backend/plugin/code_generator/crud/crud_code.py
+++ b/backend/plugin/code_generator/crud/crud_code.py
@@ -27,6 +27,7 @@ class CRUDGen:
             WHERE table_name NOT LIKE 'sys_gen_%'
             AND table_schema = :table_schema;
             """
+            stmt = text(sql).bindparams(table_schema=table_schema)
         else:
             sql = """
             SELECT c.relname AS table_name, obj_description(c.oid) AS table_comment
@@ -36,7 +37,7 @@ class CRUDGen:
             AND n.nspname = 'public' -- schema 通常是 'public'
             AND c.relname NOT LIKE 'sys_gen_%';
             """
-        stmt = text(sql).bindparams(table_schema=table_schema)
+            stmt = text(sql)
         result = await db.execute(stmt)
         return result.mappings().all()
 
@@ -63,6 +64,7 @@ class CRUDGen:
             LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
             WHERE c.relkind = 'r'
             AND n.nspname = 'public' -- schema 通常是 'public'
+            AND c.relname = :table_name
             AND c.relname NOT LIKE 'sys_gen_%';
             """
         stmt = text(sql).bindparams(table_name=table_name)