解決MySQL報錯:1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'informat
解決MySQL報錯:[Err] 1055 - Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'informat
1、問題描述
新安裝的MySQL5.7.22 或 8.0.11,在 Navicat 上執行刪除操做時,遇到報錯:
[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
2、問題解決
一、 解決辦法: 把 sql_mode中的 only_full_group_by 去掉便可。
二、 辦法一 (摘自
這裏 只在當前查詢頁面有效,不能一次性解決問題!):
- select version(), @@sql_mode;
- SET sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));
三、辦法二: 修改 my.cnf 文件的 sql_mode (一次性解決問題)
- 查找 my.cnf 文件: find / -name my.cnf 或者 whereis my.cnf
- 獲取 sql_mode字段內容: SELECT @@sql_mode;
- 去掉 sql_mode字段中的 only_full_group_by
- 編輯 my.cnf: vim /etc/my.cnf 將上一步驟的 sql_mode 字段內容添加至 my.cnf
- 保存,重啓: service mysqld restart
- sql_mode 字段參考:
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION