mysql删除完全重复数据保留一条

CREATE TABLE tmp AS (SELECT DISTINCT * FROM oa_organization);--将不重复的数据存入新建临时表tmp
DELETE FROM oa_organization;--删除对应的表
INSERT INTO oa_organization SELECT * FROM tmp;--把临时表里的数据存入对应的表
DROP TABLE tmp;--删除临时表

 

posted @ 2018-11-07 10:44  小泉哥  阅读(823)  评论(0编辑  收藏  举报