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 people where peopleId in (select peopleId from people group by peopleId having count(peopleId) > 阅读全文
posted @ 2022-04-06 14:53 乌卡拉卡 阅读(82) 评论(0) 推荐(0) 编辑