SQL重复记录查询(转载)
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 people group by peopleId having count(peopleId) > 1) 阅读全文
posted @ 2017-07-27 17:14 那里的天空 阅读(190) 评论(0) 推荐(0) 编辑
