In aggregated query without GROUP BY, expression #3 of SELECT list contains nonaggregated column &#0

阿新 • • 發佈：2021-01-11

錯誤：

In aggregated query without GROUP BY, expression #3 of SELECT list contains nonaggregated column 'emsdb_pro.mainspareparts.CreationTime'; this is incompatible with sql_mode=only_full_group_by

原因是：當mysql的sql_mode存在only_full_group_by的時候，在不使用group by 並且select後面出現聚集函式的話，那麼所有被select的都應該是聚集函式，否則就會報錯。

解決：

在mysql 的配置檔案（my.ini）中修改

注意：要將sql_mode配置放置在[mysqld]節下面

儲存檔案後使用命令列重啟資料庫：

net stop mysql

net start mysql

執行之後到資料庫中執行

set @@global.sql_mode = `STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION`;

在使用select @@global.sql_mode查詢

結果中就不存在

ONLY_FULL_GROUP_BY

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