exists用在linq上
摘要:
SQL里面,有时候会用到exists或者not exists。select * from yb t1 where not exists(select 1 from yb t2 where trunc(t1.yubaodate,'dd')=trunc(t2.yubaodate,'dd... 阅读全文
posted @ 2017-02-21 16:56 左直拳 阅读(4145) 评论(1) 推荐(0) 编辑
posted @ 2017-02-21 16:56 左直拳 阅读(4145) 评论(1) 推荐(0) 编辑