12 2016 档案

SQL 一条记录的的两个字段值相同与不同的查询
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(10024) 评论(0) 推荐(0)