XML Query within SQL Server

Question

I just starting to query XML within a SQL Server database. I am having trouble with the most basic query. Here is a simplified example. How do I return description? The SELECT statement below is what I am using, but it returns nothing.

SELECT Incidents.IncidentXML.query
('data(/dsIncident/IncidentInformation/Description)') AS Description 
FROM Incidents

This is the snippet of the XML file that I am using:

<dsIncident xmlns="http://tempuri.org/dsIncident.xsd">
  <IncidentInformation>
    <Description>This is the description.</Description>
    <Country>Singapore</Country>
  </IncidentInformation>
</dsIncident>

marc_s · Accepted Answer · 2009-08-19 19:28:36Z

13

Well, you're missing out on the XML namespace! :-)

Try this:

SELECT 
  Incidents.IncidentXML.query('declare namespace x="http://tempuri.org/dsIncident.xsd";
          (/x:dsIncident/x:IncidentInformation/x:Description)') AS Description 
FROM Incidents

The magic is the

declare namespace x="http://tempuri.org/dsIncident.xsd"

part here - it declares a namespace (with a prefix of your choice - can be anything - here 'x') for the period of the query on that XML data.

Hopefully, that'll return something! ;-)

Marc

answered Aug 19, 2009 at 19:28

marc_s

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