如果条件大于100，请选择行

Question

I have two table in my database, - user - videos

In my user table I have a column called balance and in my videos I have I column called views .

I want if the views in my video reach 1000 my balance will update by plus one in my user table any ideas.

SELECT view
FROM videos
If views=1000
    UPDATE user SET balance=balance+1 WHERE user
id = user id

Answer 1

You can use an update-join statement:

UPDATE user u
JOIN   views v ON u.userid = v.userid
SET    balance = balance + 1
WHERE  v.views >= 1000