2010年12月1日
SQL重复记录查询
摘要： [代码]select * from debt where Studentnumber in(select Studentnumber from debt group by Studentnumber having COUNT(Studentnumber) >1)select * from debt where Studentnumber in(select Studentnumber fro... 阅读全文
posted @ 2010-12-01 10:39 大佬辉 阅读(250) 评论(0) 推荐(0)