将FOR XML AUTO结果保存到SQL中的变量

Question

select @result=@input.query('*')
for xml raw,type  

上面的语句将生成以下警告:
消息6819,级别16,状态3,行2
在ASSIGNMENT语句中不允许FOR XML子句.

Answer 1

例如

DECLARE @xml_var XML  
SET @xml_var =  
(
  SELECT   *,
    (  
      SELECT *

      FROM Orders

      WHERE Orders.CustomerID=Customers.CustomerID

      FOR XML AUTO, TYPE

    )

  FROM Customers WHERE CustomerID='ALFKI'

  FOR XML AUTO, TYPE

)

参考:http: //blogs.msdn.com/sqlprogrammability/articles/576095.aspx

Answer 2

DECLARE @RESULTS XML
SET @RESULTS = (SELECT * FROM Table_Name FOR XML AUTO)
SELECT @RESULTS