摘要: select * from (select xm,je from table) a , (select xm01,je01 from table) bwhere a.xm = b.xm01and a.je <> b.je01<> 或 != 阅读全文
posted @ 2016-12-14 11:38 LEON.LEE 阅读(9999) 评论(0) 推荐(0) 编辑