解决mysql出现的问题#1055 - Expression of SELECT list is not in GROUP BY clause and contains nonaggregated column this i
最近在学flask, 在访问主页时，一直出现1055错误，在网上找的解决方法是删除ONLY_FULL_GROUP_BY，当时是删除了，但是退出在进行select @@sql_mode时，仍出现ONLY_FULL_GROUP_BY
以下是我的解决方案：
在数据库控制台输入命令：SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));
完美解决我的问题了
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