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MySQL 5.7.9版本sql_mode=only_full_group_by问题

2018-02-07 10:50 676 查看

MySQL 5.7版本sql_mode=only_full_group_by问题

1、在MySQL环境下执行分组sql，如下

mysql> select db_server_name,login_user,count(db_server_name) from `mysql_audit_log` group by login_user;

提示

ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'collect_mysql_audit_log.mysql_audit_log.db_server_name' which is not functionally dependent on colum
ns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

2、解决：
执行SELECT @@GLOBAL.sql_mode 查看

mysql> SELECT @@GLOBAL.sql_mode;
+-------------------------------------------------------------------------------------------------------------------------------------------+
| @@GLOBAL.sql_mode                                                                                                                         |
+-------------------------------------------------------------------------------------------------------------------------------------------+
| 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 |
+-------------------------------------------------------------------------------------------------------------------------------------------+

1 row in set (0.06 sec)
重新设置 sql_mode，禁用ONLY_FULL_GROUP_BY。如下设置，下面设置是临时生效，如果想永久生效，请在配置文件中添加配置

mysql> 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';
Query OK, 0 rows affected (0.00 sec)

配置文件中添加配置

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

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