Question

I have a query like this:

 SELECT  
    getdate()[createdon], 'www.google.com'[XMLNS],
    Co.Country, IC.InterConnectionName as point,
    SO.SOName[TSO], FD.GasDay, FD.CaptureDate,
    CD.mwhentry AS entrymwh, CD.mwhexit AS exitmwh, 
    DS.State, (CD.MWHENTRY - CD.MWHEXIT) AS NETMWH,
    (cd.mwhexit - cd.mwhexit) as NETMCH 
FROM 
    TABLENAME 

I want this to convert into xml as

<gas-flow created-on="2012/06/02T10:30:01Z"
          xmlns="www.google.com">
   <country>Austria</country>
   <point>TSO4</point>
   <tso>BOG</tso>
   <gas-day>2012/06/02</gas-day>
   <capture-date>2012/06/02T10:30:00Z</capture-date>
   <state version="1">provisional</state>  
   <entry mwh="558234" mcm="52.80"/>
   <exit mwh="0" mcm="0"/>
   <net mwh="558234" mcm="52.80"/>
</gas-flow>

If I do this with

FOR XML RAW ('gasflow'), ROOT ('FLOWDATAID'), ELEMENTS

I get also data between the tags but the problem is the values for the

 entry tag, exit tag and net mwh 

has to be like this

Thanks for the help..

Answer 1

You need to check out the FOR XML PATH() syntax – it’s much more flexible than FOR XML RAW and allows you to do things like specify certain output to be attributes (rather than elements).

So try something like this:

;WITH XMLNAMESPACES (DEFAULT 'www.google.com')
SELECT  
    GETDATE() AS '@created-on', 
    CO.Country, 
    IC.InterConnectionName AS 'point',
    SO.SOName AS TSO, 
    FD.GasDay, 
    FD.CaptureDate,
    '1' AS 'State/@version',
    [DS.State], 
    CD.mwhentry AS 'entry/@mwh',
    CD.mcmEntry AS 'entry/@mcm',
    CD.mwhexit AS 'exit/@mwh',
    CD.mcmexit AS 'exit/@mcm',
    (CD.MWHENTRY - CD.MWHEXIT) AS 'net/@mwh',
    (CD.MWHexit - CD.MWHexit) AS 'net/@mcm'
FROM 
    dbo.YourTableNameHere
FOR XML PATH('gas-flow'), ROOT ('FLOWDATAID')