报错：In aggregated query without GROUP BY, expression #1 of SELECT list contains nonaggregated column

sql语句报错内容：

Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: In aggregated query without GROUP BY, expression #1 of SELECT list contains nonaggregated column 'sw_promanage.a.id'; this is incompatible with sql_mode=only_full_group_by

报错原因：

MySQL版本问题，有的版本默认开启了ONLY_FULL_GROUP_BY，所以导致了一些SQL无法正常执行，其实是因为group by 之后，返回的一些数据是不确定的，所以才会出现这个错误。

解决方法（两种）：

• （1）使用ANY_VALUE(column_name)。

例如：
错误代码：

SELECT 
	a.id AS "id",
	a.project_id AS "projectId",
	sum(a.reward_money) AS "rewardMoney",
	sum(a.punish_money) AS "punishMoney"
FROM pm_reward_punishment_plan a
where a.project_id = 'xxxxxxxx'

修改后代码：

SELECT 
	ANY_VALUE(a.id) AS "id",
	a.project_id AS "projectId",
	sum(a.reward_money) AS "rewardMoney",
	sum(a.punish_money) AS "punishMoney"
FROM pm_reward_punishment_plan a
where a.project_id = 'xxxxxxxx'

• (2)设置数据库，关闭ONLY_FULL_GROUP_BY。

编辑my.cnf文件，找到sql-mode的位置，去掉ONLY_FULL_GROUP_BY，重启MySQL服务；
如my.cnf中没有sql-mode，需要加入以下：
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服务。