In aggregated query without GROUP BY, this is incompatible with sql_mode=only_full_group_by

解决办法：

1.直接执行如下sql（但是重启mysql服务后，需要再次执行）

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';

2.修改mysql配置文件

    linux:

         vim /etc/mysql/conf.d/mysql.cnf

[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 将这一句添加到配置文件中 重启

    windows

    my.ini

    [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 加入这句 重启服务