带左连接的SQL Server UPDATE？

Question

我想更新一个表格，这个表格有多对一的关系。该表包含可以很多的会员资格，并且它们与一个人联系在一起。

会员可以是客户或从业者，所以他们有一个客户ID或从业者ID。

请问你是否需要更多信息，下面是我的尝试，我尝试了UPDATE下的所有左连接，并且没有从，但是我已经发布了这个例子，因为我认为它最好显示我是什么试图去做。

UPDATE 
    MembershipUser AS MU 
SET 
    MU.AccountLastUsed = 0 
FROM 
    Person AS P 
    LEFT JOIN Practitioner AS Pr ON Pr.PersonId = P.PersonId 
    LEFT JOIN Client AS C ON C.PersonId = P.PersonId 
    LEFT JOIN MembershipUser AS MU ON MU.PractitonerId = Pr.PractitionerId OR ON MU.ClientId = C.ClientId 
WHERE 
    P.PersonId = @PersonId 

有人可以帮我在这里，你可以做一个更新与左加入？

Answer 1

尝试以下查询：

UPDATE MembershipUser 
SET MU.AccountLastUsed = 0 
FROM Person AS P 
    LEFT JOIN Practitioner AS Pr ON Pr.PersonId = P.PersonId 
    LEFT JOIN Client AS C ON C.PersonId = P.PersonId 
Where 
    P.PersonId = @PersonId 
    and (MembershipUser.PractitonerId = Pr.PractitionerId OR MembershipUser.ClientId = C.ClientId) 

OR：

UPDATE z  
SET AccountLastUsed = 0 
FROM (
    SELECT Mu.Id, Mu.AccountLastUsed 
    FROM 
     Person AS P 
     LEFT JOIN Practitioner AS Pr ON Pr.PersonId = P.PersonId 
     LEFT JOIN Client AS C ON C.PersonId = P.PersonId 
     LEFT JOIN MembershipUser AS MU ON MU.PractitonerId = Pr.PractitionerId OR ON MU.ClientId = C.ClientId 
    WHERE 
     P.PersonId = @PersonId 
    )z