sql_mode=only_full_group_by问题

 SQL: SELECT   t.dispatch_order_id,   t.dispatch_userid,   t.is_receive,   t.firstsec,   t.secondsec,   t.receive_userid,   t.dispatch_type,   t.work_order_id,   t.firstsec,   t.secondsec,   rr.app_username as receiveUsername,   dr.app_username as dispatchUsername,   w.user_name as customerUsername   FROM   (   SELECT   dispatch_order_id,   dispatch_userid,   is_receive,   receive_userid,   work_order_id,   dispatch_type,   ( UNIX_TIMESTAMP( first_waring_time ) - UNIX_TIMESTAMP( now( ) ) ) AS firstsec,   ( UNIX_TIMESTAMP( second_waring_time ) - UNIX_TIMESTAMP( now( ) ) ) AS secondsec   FROM   wyy_dispatch_order   ) t  LEFT JOIN wyy_role rr ON rr.app_userid = t.receive_userid   LEFT JOIN wyy_role dr ON dr.app_userid = t.dispatch_userid   LEFT JOIN wyy_work_order w ON w.work_order_id = t.work_order_id   WHERE   t.is_receive = 0     AND ((  t.firstsec < 30 AND t.firstsec>=0) or (t.secondsec <30 and t.secondsec>=0))     GROUP BY t.dispatch_order_id
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #11 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'dev.rr.app_username' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #11 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'dev.rr.app_username' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

1.查看sql_mode

select @@global.sql_mode

查询结果的值为：

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

2.去掉ONLY_FULL_GROUP_BY，重新设置值。

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';