如何在單個查詢更新多個值的列

Question

例

Update A 
set userid - (1, 2, 3), userrolesid - (1, 2, 3) 
where id - 40 

Answer 1

使用下面的查詢多個更新：

UPDATE A SET userid = '1,2,3' , userrolesid = '1,2,3' 
    WHERE id = 40 

注：這兩個更新列必須VARCHAR數據類型。

Answer 2

WITH Tmp(id, px, py) AS (VALUES(id1, newsPosX1, newPosY1), 
           (id2, newsPosX2, newPosY2), 
           ......................... , 
           (idN, newsPosXN, newPosYN)) 

UPDATE TableToUpdate 
SET posX = (SELECT px 
      FROM Tmp 
      WHERE TableToUpdate.id = Tmp.id), 
    posY = (SELECT py 
      FROM Tmp 
      WHERE TableToUpdate.id = Tmp.id) 
WHERE id IN (SELECT id FROM Tmp)