摘要:
insert into t (f) select f1 union select f2 union select f3 多值插入select xxx into t2 from t1update t1 set xx = (select xx from t2 where id=t1.id) 阅读全文
摘要:
调用系统存储过程清空所有表 EXECUTE sp_msforeachtable 'truncate table ?' 阅读全文