1、记录数据库配置的出现问题
原
解决MySql查询语句报Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre异常的问题
今天上午在公司启动项目的时候,获取一个列表的时候项目报错,内容如下:
-
Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #
1 of SELECT list
is not
in GROUP BY clause and contains nonaggregated column
'kypj-gate.t1.id' 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 com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #
1 of SELECT list
is not
in GROUP BY clause and contains nonaggregated column
'kypj-gate.t1.id' which
is not functionally dependent on columns
in GROUP BY clause;
this
is incompatible with sql_mode=only_full_group_by
-
at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:
91)
-
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:
73)
-
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:
81)
-
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:
74)
-
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:
399)
-
at com.sun.proxy.$Proxy35.selectList(Unknown Source)
-
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:
205)
-
at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:
119)
-
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:
63)
-
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:
52)
-
at com.sun.proxy.$Proxy43.findProxyList(Unknown Source)
-
at com.kypj.jeeplat.modules.platmgt.player.service.PlatPlayerService.findProxyListPage(PlatPlayerService.java:
2268)
明明是相同的项目在同事的电脑上就没问题,在网上查了一下原来是MySql版本的问题,我的MySql数据库版本是5.7.23,在5.7以上的版本实现了对功能依赖的检测,MySql默认启用了only_full_group_by SQL模式,可以试试在Navicat里面输入查询语句
select @@global.sql_mode;
得到的结果如下,
ONLY_FULL_GROUP_BY,sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
照理说只要将结果中的ONLY_FULL_GROUP_BY去掉就可以,试着在Navicat里执行
set @@global.sql_mode = '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';
重启MySql服务,再进入Navicat执行select @@global.sql_mode发现刚才的set语句并没有生效,
进入MySql安装路径下,打开my.ini文件,在文件的最末尾加上
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
这样一句,再重启MySql服务,发现Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre异常的问题已经解决