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Asked: 2026-05-10T13:45:26+00:00

There is a field in my company’s Contacts table. In that table, there is

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There is a field in my company’s ‘Contacts’ table. In that table, there is an XML type column. The column holds misc data about a particular contact. EG. 

<contact> <refno>123456</refno> <special>a piece of custom data</special> </contact>

The tags below contact can be different for each contact, and I must query these fragments alongside the relational data columns in the same table.

I have used constructions like:

SELECT c.id AS ContactID,c.ContactName as ForeName, c.xmlvaluesn.value('(contact/Ref)[1]', 'VARCHAR(40)') as ref,     INNER JOIN ParticipantContactMap pcm ON c.id=pcm.contactid  AND pcm.participantid=2140 WHERE xmlvaluesn.exist('/contact[Ref = '118985']') = 1

This method works ok but, it takes a while for the Server to respond. I have also investigated using the nodes() function to parse the XML nodes and exist() to test if a nodes holds the value I’m searching for.

Does anyone know a better way to query XML columns??

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1 Answer

  1. I’ve found the msdn xml best practices helpful for working with xml blob columns, might provide some inspiration… http://msdn.microsoft.com/en-us/library/ms345115.aspx#sql25xmlbp_topic4

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