1部分:MySQL的 從MySQL數據庫中如何加入以下兩項罪名 SELECT COUNT(activity_id) as activities, user_id FROM Activity
WHERE activity_completed_time IS NOT NULL
AND group = somevalue
GROUP BY user_id;
SELECT
我正在使用Django 1.11來創建應用程序'cnfs',並且我正在使用MYSQL數據庫。我不斷地面臨這個問題,即我得到這樣的錯誤,當我鍵入下面的代碼: $python manage.py migrate
System check identified some issues: WARNINGS: ?: (mysql.W002) MySQL Strict Mode is not set fo