摘要: SQL重复记录查询 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 people where peopleId in (select peopleId from people group by peopleId having count (p 阅读全文
posted @ 2021-05-26 15:31 划边逅 阅读(4710) 评论(0) 推荐(0) 编辑