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【六袆 - MySQL】MySQL GROUP BY 去重;GROUP BY 查询重复的记录;GROUP BY删除重复的记录;
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2021-12-11 18:55:59
views: null
MySQL去重、MYSQL删除重复记录
1.准备数据
2.使用GROUP BY查询去重复记录
查询SQL
查询结果
3 删除表中多余的重复记录,重复记录是根据单个字段(Id)来判断,只留有rowid最小的记录
查询sql
查询结果
1.准备数据
CREATE
TABLE
`
t_user
`
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Origin
blog.csdn.net/qq_41086359/article/details/120268679
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