SQL Server多個LEFT JOIN，一對多

Question

我正在尋找一種方法來執行從一個源表到多個表的多個連接。類似以下內容：

SELECT a.NAME, b.address, c.phone 
FROM tblname a 
LEFT JOIN tbladdress b ON a.nid = b.nid 

我也想執行左鍵的同時加入對電話表tblPhone：

tblname a left join tblPhone c on a.PID = c.PID 

嘗試，因爲我可能，我不能看到如何把這個到一個查詢中。

Answer 1

你可以簡單地重複你JOIN條款多次是必要的，例如：

SELECT a.NAME 
    ,b.address 
    ,c.phone 
FROM tblname a 
LEFT JOIN tbladdress b ON a.nid = b.nid 
LEFT JOIN tblPhone c ON a.PID = c.PID 

Answer 2

SELECT a.name, b.address, c.phone 
FROM tblname a 
left join tbladdress b on a.nid = b.nid 
left join tblPhone c on a.PID = c.PID; 

Answer 3

SELECT a.name, b.address, c.phone 
FROM (tblname a 
    left join tbladdress b on a.nid = b.nid) c 
left join tblPhone d on c.PID=d.PID