【mybatis】【mysql】mybatis查询mysql,group by分组查询报错:Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column

mybatis查询mysql,group by分组查询报错:Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column

mysql版本是5.7

1.导致出错的sql语句是:

<select id="findScNumByTime" parameterType="com.pisen.cloud.luna.ms.security.code.api.beans.ScNumCountBean"
resultType="com.pisen.cloud.luna.ms.security.code.api.beans.ScNumCountBean"> SELECT
create_date queryDate,
IFNULL(sum(security_code_total), 0) createSCNum,
IFNULL(sum(print_num), 0) printNum
FROM
security_code_config
WHERE
tid = #{tid}
AND
DATE_FORMAT(create_date,#{queryDateFormat}) &lt;= DATE_FORMAT(#{endDate},#{queryDateFormat})
AND
DATE_FORMAT(create_date,#{queryDateFormat}) &gt;= DATE_FORMAT(#{startDate},#{queryDateFormat})
GROUP BY
DATE_FORMAT(create_date,#{queryDateFormat})
</select>

即:

SELECT
create_date queryDate,
IFNULL(sum(security_code_total), 0) createSCNum,
IFNULL(sum(print_num), 0) printNum
FROM
security_code_config
WHERE
tid = 'test_tenement_123'
AND
DATE_FORMAT(create_date,'%Y-%m') <= DATE_FORMAT('2019-03-12','%Y-%m')
AND
DATE_FORMAT(create_date,'%Y-%m') >= DATE_FORMAT('2018-10-01','%Y-%m')
GROUP BY DATE_FORMAT(create_date,'%Y-%m')

2.导致出错的原因是因为:

请在mysql执行:

SHOW SESSION VARIABLES;

SHOW GLOBAL VARIABLES;

都可以看到:

【mybatis】【mysql】mybatis查询mysql,group by分组查询报错:Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column

错误原因就是这里:

only_full_group_by

要求select的列都要在group里面。

在mysql5.5没有这个问题!!!

3.解决方法:

分别执行

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

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'

注意先执行session的修改,再执行global的修改!!!!

修改完成后,再查看【执行第二步的两个sql查看即可】

【mybatis】【mysql】mybatis查询mysql,group by分组查询报错:Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column

4.最后,需要你重启spring boot服务,再进行查询调用,才会有效

【自己测试的情况就是,未重启mysql服务,重启了spring boot服务,再调用就可以正常执行了】

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