删除mysql数据库中的重复数据记录
时间：2021-05-20 09:27:56|栏目：Mysql|点击： 次
采用的是下面的方法可删除,假设重复的是test数据库中的title字段
create table bak as (select * from test group by title having count(*)=1);
insert into bak (select * from test group by title having count(*)>1);
truncate table test;
insert into test select * from bak;
复制代码 代码如下:
create table bak as (select * from test group by title having count(*)=1);
insert into bak (select * from test group by title having count(*)>1);
truncate table test;
insert into test select * from bak;
上一篇：MySQL笔记之视图的使用详解
栏 目：Mysql
本文标题：删除mysql数据库中的重复数据记录
本文地址：http://www.codeinn.net/misctech/124948.html
