Expression #1 of ORDER BY clause is not in GROUP BY clause and"
阿新 • • 發佈：2018-12-21
升級之後馬上體驗了一下，執行“UPDATE user_course SET userid = 200 WHERE id = 28;”，結果報[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 這個錯誤，語句雖然執行成功了，但是出現這個錯誤，心裡也是慌慌的。
於是百度了一下這個錯誤的解決辦法：
SHOW VARIABLES LIKE '%sql_mode%'; 檢視下SQL的模式，結果是發現了
ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION。 的確是存在 ONLY_FULL_GROUP_BY.
那就修改sql_mode的值
set sql_mode = '';
set sql_mode = 'NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES';
再次執行剛才的語句，就不會報錯了。