更新表與另一個表中的SUM

Question

我想要什麼，我想是一個表與另一個表的總和的簡單更新，但由於某種原因，它只是更新一行。以下是從表中的相關信息如下所示：

遊戲

gameplayer|points 
---------------- 
John  |5 
Jim  |3 
John  |3 
Jim  |4 

playercareer

playercareername|playercareerpoints 
----------------------------------- 
John   |0 
Jim    |0 

現在最後，我想最後的表看起來像這樣後運行更新：

player職業

playercareername|playercareerpoints 
----------------------------------- 
John   |8 
Jim    |7 

這是我嘗試，只有更新的第一行查詢：

UPDATE playercareer 
SET playercareer.playercareerpoints = 
    (
SELECT 
    SUM(games.points) 
FROM games 
    WHERE 
    playercareer.playercareername=games.gameplayer 
    ) 

我似乎無法找到這個問題的答案。預先感謝您的時間和建議！

Answer 1

UPDATE playercareer c 
INNER JOIN (
    SELECT gameplayer, SUM(points) as total 
    FROM games 
    GROUP BY gameplayer 
) x ON c.playercareername = x.gameplayer 
SET c.playercareerpoints = x.total