摘要: 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 people group by peopleId having count(peopleId) > 1) 例 阅读全文
posted @ 2019-08-23 15:12 紫陌红尘520 阅读(268) 评论(0) 推荐(0) 编辑