摘要: **复制表结构**select * into b from product where 11**拷贝表**select * into c from product**两张关联表,删除主表中已经在副表中没有的信息**delete from product where not exists (select * from userbase where product.uid=userbase.uid)... 阅读全文
posted @ 2009-02-10 14:00 Devil_Zhang 阅读(342) 评论(0) 推荐(0) 编辑