mysql5.7--sql_mode ONLY_FULL_GROUP_BY問題

(1055, "Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'XX' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by")

 

MySQL 5.7和up實現了對功能依賴的檢測。若是啓用了only_full_group_by SQL模式(在默認狀況下是這樣)，那麼MySQL就會拒絕選擇列表、條件或順序列表引用的查詢，這些查詢將引用組中未命名的非聚合列，而不是在功能上依賴於它們

 

解決方法一：

　　取消/etc/my.cnf裏的sql_mode

解決方法二：（親測有效）

# 一、 mysql> 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';

# 二、 mysql> set session sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';

# 三、 set @@sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';

感謝！https://blog.csdn.net/chai1230/article/details/89514482