摘要: --1、查找表中多余的重复记录,重复记录是根据单个字段(peopleId)来判断select * from peoplewhere peopleId in (select peopleId from pe... 阅读全文
posted @ 2013-11-26 12:52 骑猪上高速_D 阅读(255) 评论(0) 推荐(0) 编辑