2017年10月31日
Sql删除表中多余的重复记录
摘要： 删除表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断，只留有rowid最小的记录 delete from people where peopleName in (select peopleName from people group by peopleName having co 阅读全文
posted @ 2017-10-31 12:07 码农丁 阅读(296) 评论(0) 推荐(0) 编辑