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mysql遇见Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre的问题解决方法
框架中报错信息如下:[error][yii\db\Exception] PDOException: SQLSTAT...
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13
2019/06

mysql遇见Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre的问题解决方法

框架中报错信息如下:

[error][yii\db\Exception] PDOException: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'tinyhand.user_info.user_id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /yii2basic/vendor/yiisoft/yii2/db/Command.php:1258

问题出现的原因: 
MySQL 5.7.5及以上功能依赖检测功能。如果启用了ONLY_FULL_GROUP_BY SQL模式(默认情况下),MySQL将拒绝选择列表,HAVING条件或ORDER BY列表的查询引用在GROUP BY子句中既未命名的非集合列,也不在功能上依赖于它们。
(5.7.5之前,MySQL没有检测到功能依赖关系,默认情况下不启用ONLY_FULL_GROUP_BY。有关5.7.5之前的行为的说明,请参见“MySQL 5.6参考手册”。)

解决方法一
sql查询

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

去掉ONLY_FULL_GROUP_BY,重新设置值,执行sql如下:

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’;
解决方法二
编辑mysql.conf文件

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

文件底部粘贴

[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
保存并退出,重启服务

brew services restart mysql@5.7
Last modification:September 25th, 2019 at 11:45 pm
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