摘要：
oracle 中测试成功--找出表中的重复数据 select * from vav_groupbrand_casn where ccasn in ( select ccasn from vav_groupbrand_casn group by ccasn having count(*)>1 ) order by ccasn--找出表中的重复数据 select * from vav_groupbrand_casn a, vav_groupbrand_casn b where a.cgroupbranid =b.cgroupbranid and a.ccasn=b.ccasn and a.c 阅读全文
