Question

我想从SQL Server 2005查询多个表并创建一个XML文档，并在存储过程中执行此操作。

我知道我可以在存储过程中查询多个表，并在我的.NET应用程序中获得DataSet，可以轻松保存为XML。但是，我正在尝试在存储过程的上下文中执行类似的操作。

基本上我想做这样的事情：

declare @x xml
select @x = x.result
from (select y.* from tabley y for xml path('y')
      union
      select a.* from tablea a for xml path('aa')
     ) as x
select @x

Answer 1

如果你想要一个接一个，你可以尝试这样的事情：

SELECT
    (SELECT y.* FROM dbo.TableY FOR XML PATH('y'), TYPE) AS 'YElements',
    (SELECT a.* FROM dbo.TableA FOR XML PATH('aa'), TYPE) AS 'AElements'
FOR XML PATH(''), ROOT('root')

返回类似XML的内容：

<root>
   <YElements>
     <Y>
       ....
     </Y>
     <Y>
       ....
     </Y>
      ......
   </YElements>
   <AElements>
     <A>
       ....
     </A>
     <A>
       ....
     </A>
      ......
   </AElements>
</root>

Answer 2

SELECT                                                               -- Root Starts
   (SELECT  '1' AS ErrorCode FOR XML PATH(''), TYPE) AS 'Results',   -- Level 1 Starts
       (select                                                       -- Level 2 Starts
             (select      '1'         CustomerID,                    -- Level 2 Detail Starts
                          'John'      CustomerName,
                          'Doe'       CustomerLastname,
                          'Y'         Active
              for xml path('Customers'), type) AS 'Customer'         -- Level 2 Detail Ends
       for xml path(''), TYPE) AS 'Response'                         -- Level 2 Ends
   FOR XML PATH('')                                                  -- Level 1 Ends
,ROOT('BaseXML')                                                     -- Root Ends

Answer 3

在sql server中转换表XML。

Declare @RESULTXML XML
Declare @SMS_REGISTER TABLE([id] VARCHAR(30),[status] VARCHAR(30))
Declare @EMAIL_REGISTER TABLE([id] VARCHAR(30),[status] VARCHAR(30))
Declare @ODP_REGISTER TABLE([id] VARCHAR(30),[status] VARCHAR(30))

Select @RESULTXML =( 
SELECT (SELECT * FROM @SMS_REGISTER FOR XML PATH('sms'), TYPE) AS 'smss',
         (SELECT * FROM @EMAIL_REGISTER FOR XML PATH('email'), TYPE) AS         'emails',
         (SELECT * FROM @ODP_REGISTER FOR XML PATH('odp'), TYPE) AS 'odps'
    FOR XML PATH('subroot'), ROOT('root') )

像这样返回XML

    <root>
       <subroot>
        <smss>
          <sms>
            <id>NT0000000020</id>
            <status>registered</status>
          </sms>
          <sms>
            <id>NT0000000021</id>
            <status>registered</status>
          </sms>
          <sms>
            <id>NT0000000022</id>
            <status>registered</status>
          </sms>
          <sms>
            <id>NT0000000023</id>
            <status>registered</status>
          </sms>
        </smss>
        <emails>
          <email>
            <id>NT0000000024</id>
            <status>registered</status>
          </email>
          <email>
            <id>NT0000000025</id>
            <status>registered</status>
          </email>
        </emails>
      </subroot>
     </root>

从SQL Server多表查询创建单个XML

3 个答案: