MYSQL数据查询出现GROUP BY语句出错，提示错误代码1055

输入的查询语句：

SELECT diaryTypeId,typeName,COUNT(diaryId) AS diaryCount FROM t_diary RIGHT JOIN t_diaryType ON t_diary.typeId=t_diaryType.diaryTypeId GROUP BY typeName;

报错提示信息：

1 queries executed, 0 success, 1 errors, 0 warnings

查询：SELECT diaryTypeId,typeName,COUNT(diaryId) as diaryCount FROM t_diary RIGHT JOIN t_diaryType ON t_diary.typeId=t_diaryType.diary...

错误代码： 1055

Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'db_diary.t_diaryType.diaryTypeId' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

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执行耗时   : 0 sec

传送时间   : 0 sec

总耗时      : 0.007 sec

解决办法：

找到MySQL安装目录下的my.ini

在sql_mode 中去掉only_full_group_by , 即：

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

修改完成之后，重启数据库，然后再打开，再次查询就正常了。