mybatis解决查询中使用group by时出现sql_mode=only_full_group_by

迷了璐的航2025-10-31 13:24

mybatis解决查询中使用group by时出现sql_mode=only_full_group_by问题

错误异常

sql 复制代码

select 列1,列2,列3 from 表名 group by 列1

以上查询语句

使用group对列1进行分组查询，单列2和列3并没有分组这时候系统会出现以下错误信息

Cause: java.sql.SQLSyntaxErrorException: Expression #11 of SELECT list is not in GROUP BY clause and contains nonaggregated column '***' 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 java.sql.SQLSyntaxErrorException: Expression #11 of SELECT list is not in GROUP BY clause and contains nonaggregated column '*****' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

异常原因

这里原因是因为mysql版本或配置不支持分组查询时查询分组以外的列，导致异常

解决方案

解决方案1

在未进行分组查询的列中增加ANY_VALUE()关键词解决

例如: select 列1,ANY_VALUE(列2),ANY_VALUE(列3) from 表名 group by 列1
解决方案2

在datasource配置后增加&sessionVariables=sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'

config 复制代码

# 例如
 spring.datasource.url=jdbc:mysql://localhost:3306/数据库名....&sessionVariables=sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'