mySql中Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggre的问题

时间 2019-11-19

标签 mysql expression select list group clause contains nonaggre 问题栏目 MySQL 繁體版

原文原文链接

报错信息

Expression #2 of SELECT list is not in GROUP BY clause and contains
nonaggregated column ‘a.id’ which is not functionally
dependent on columns in GROUP BY clause; this is incompatible with
sql_mode=only_full_group_bysql

产生缘由

MySQL 5.7.5及以上功能依赖检测功能。若是启用了ONLY_FULL_GROUP_BY SQL模式（默认状况下），MySQL将拒绝选择列表，HAVING条件或ORDER BY列表的查询引用在GROUP BY子句中既未命名的非集合列，也不在功能上依赖于它们。（5.7.5以前，MySQL没有检测到功能依赖关系，默认状况下不启用ONLY_FULL_GROUP_BY。有关5.7.5以前的行为的说明，请参见“MySQL 5.6参考手册”。）this

解决方法

select @@global.sql_mode

结果为code

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

执行it

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’;

成功解决io