TSQL：JOIN，肯定有可能 - 但不知道如何

Question

表：服務：

ServiceID ServiceName 
1   Cleaning 
2   Painting 
3   Driving 
4   Cooking 

表：現役軍人：

ServiceMemberID MemberID ServiceID 
1    10  3 

查詢：

SELECT s.ServiceName, sm.MemberID 
FROM Services s 
JOIN ServiceMembers sm ON s.ServiceID = sm.ServiceID 
WHERE sm.MemberID = 10 

退貨：

Driving 10 

問題： 如何連接表，這樣我就可以得到以下的TSQL：

Cleaning  NULL 
Painting  NULL 
Driving  10 
Cooking  NULL 

在此先感謝。

Answer 1

這應做到：

 
SELECT s.ServiceName, sm.MemberID 
FROM Services s 
    LEFT JOIN ServiceMembers sm ON s.ServiceID = sm.ServiceID AND sm.MemberID = 10