数据库Mysql报错： [Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and

解决方法如下

【Windows】数据库执行：

select version(),
@@sql_mode;SET sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));

【Linux】修改mysql配置文件 vim /etc/my.cnf ，修改sql_mode的值，去掉ONLY_FULL_GROUP_BY

sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'

重启MySQL

service mysqld restart