SELECT list is not in GROUP BY clause and contains nonaggregated column 't_user_rel.distance' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=on

錯誤信息

SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 
 't_user_rel.distance' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
 

SQLSTATE[42000]: Syntax error or access violation: 1140 In aggregated query without GROUP BY, expression #1 of SELECT list contains nonaggregated column
 't_team.uid'; this is incompatible with sql_mode=only_full_group_by

 

發生錯誤的源sql語句

SELECT `uid`,`distance` FROM `t_user_rel` WHERE  `uid` IN (7534,2967,2145,901,746,654,2) GROUP BY `uid` ORDER BY distance asc"

其中distance 不是group by的字段 ，數據庫做了限制 sql_mode = only_full_group_by，所以報錯

解決方法

錯誤信息就是sql語句使用group by的時候 獲取字段column 不是分組的字段，mysql配置做了限制： sql_mode=only_full_group_by

網上查了很多的解決方法就是修改配置文件，就可以解決這個問題。

參考：https://blog.csdn.net/qq_42175986/article/details/82384160

解決方法就是把

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

設置成

STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

就是把分組查詢字段不做限制

查看數據庫sql_mode的配置

SHOW VARIABLES LIKE '%sql_mode%'

yum指定官方源安裝好的不同mysql版本的默認sql_mode 的配置如下：
MySQL5.7.24

STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION 

MySQL5.7.25

STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

MySQL5.7.26

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

由上可以得出5.7.26以及之后的版本ONLY_FULL_GROUP_BY 是官方默認的配置