MySQL 严格模式引起的问题

错误信息

Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre

SQL MODE

select @@sql_mode;

select @@global.sql_mode

输出:

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

解决办法

去掉ONLY_FULL_GROUP_BY

• 方法一：SQL中修改（重启后失效）

set @@global.sql_mode =’STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION’;

• 方法二：在my.ini或my.cnf中的[mysqld]下配置（需重启）

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