mysql执行sql语句提示Expression #1 of ORDER BY clause is not in GROUP BY

mysql 新版本出现group by 语句不兼容问题

[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column’information_schema.PROFILING.SEQ’ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

从提示上看是 sql_mode=only_full_group_by的问题

解决过程

1. 查看数据库设置的 sql_mode

    select @@global.sql_mode;

查询出来的值为：
ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

我们只要去掉ONLY_FULL_GROUP_BY 这个设置就好。

2.去掉ONLY_FULL_GROUP_BY

修改my.cnf 配置文件，删掉only_full_group_by这一项，如果没有设置，直接根据上面的查询结果去掉ONLY_FULL_GROUP_BY
增加到配置文件，重启mysql即可。

如果需要临时修改一个库的可以直接执行语句：

    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';