mysql遇见contains nonaggregated column ‘information_schema.PROFILING.SEQ’异常详解数据库

报错如下：
[Err] 1055 Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column information_schema.PROFILING.SEQ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

问题出现的原因：
MySQL 5.7.5及以上功能依赖检测功能。如果启用了ONLY_FULL_GROUP_BY SQL模式（默认情况下），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之前，MySQL没有检测到功能依赖关系，默认情况下不启用ONLY_FULL_GROUP_BY。有关5.7.5之前的行为的说明，请参见“MySQL 5.6参考手册”。）

解决方案：
select @@global.sql_mode
SET sql_mode=(SELECT REPLACE(@@sql_mode, ONLY_FULL_GROUP_BY , )); ##当前session变量生效

SET global sql_mode=(SELECT REPLACE(@@sql_mode, ONLY_FULL_GROUP_BY , )); ##全局变量生效

SET sql_mode=(SELECT REPLACE(@@sql_mode,ONLY_FULL_GROUP_BY,)); 

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;

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/4851.html