合併數據在兩排爲一

Question

Possible Duplicate:
Concatenate row values T-SQL

我是新來的SQL Server並試圖從網上建議喜歡使用臨時變量，XML路徑，COALESCE和等，但都沒有達到我的要求一些技巧不知何故。

我用蟾蜍的SQL Server 5.5版創建SQL腳本，我用來查詢數據庫服務器的帳戶只得到了讀取權限。因此不能使用CREATE VIEW我相信的陳述。

表名：Customer

ServerName Country contact 
---------- ------- ------------- 
srv1  SG  srv1_contact1 
srv1  SG  srv1_contact2 
srv1  SG  srv1_contact3 
srv2  HK  srv2_contact1 
srv2  HK  srv2_contact2 
srv3  JP  srv3_contact1 
srv3  JP  srv3_contact2 
srv3  JP  srv3_contact3 
srv4  KR  srv4_contact1 

預期輸出：

ServerName Country contact 
---------- ------- ------------------------------------------- 
srv1  SG  srv1_contact1; srv1_contact2; srv1_contact3 
srv2  HK  srv2_contact1; srv2_contact2 
srv3  JP  srv3_contact1; srv3_contact2; srv3_contact3 
srv4  KR  srv4_contact1 

Answer 1

SELECT ServerName, Country, contact = STUFF((SELECT '; ' 
    + ic.contact FROM dbo.Customer AS ic 
    WHERE ic.ServerName = c.ServerName AND ic.Country = c.Country 
    FOR XML PATH(''), TYPE).value('.','nvarchar(max)'), 1, 2, '') 
FROM dbo.Customer AS c 
GROUP BY ServerName, Country 
ORDER BY ServerName;