解决SELECT list is not in GROUP BY clause and contains nonaggregated column ‘XXX’

我是在Linux上面新装了一个mysql5.7的数据库，然后上传项目，日志中出现了这个错误信息。

网上找了许久，终于解决了，将解决方法记录如下。
1、查询 sql_mode

select @@sql_mode;

查询出来是 ONLY_FULL_GROUP_BY

这个严格限制了分组的条件。解释请看这篇文章
2、去掉ONLY_FULL_GROUP_BY，重新设置值。

set @@sql_mode =‘STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,
NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION‘;

1
2

上面改变了全局sql_mode，对于新的数据库有效。已存在的数据库，则无效。

3、最终解决办法

Linux上面是在my.cnf设置一般是在 vi /etc/my.cnf 路径

Windows 上面是my.ini设置。

[mysqld]
sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'

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