Lg-long

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2018年12月21日 #

mysql 数据表中查找重复记录

摘要： 1、单个字段 查询所有重复数据 select * from ActivityWinUser where (UID) in(select UID from ActivityWinUser group by UID having count(*)>1); 去重 delete from table whe 阅读全文

posted @ 2018-12-21 11:35 Lg-long 阅读(355) 评论(1) 推荐(0)