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Using a variable as an xpath value in xml.query

  • April 30, 2009 at 6:05 am

    #384476

    I am trying to use a variable as the xpath when I do a query statement on an XML document in SQL Server 2008. I have tried

    DECLARE @STR varchar(8000)

    SET @STR = 'ACORD/InsuranceSvc/PersAutoPolicyAddRq/Producer/ProducerInfo/ContractNumber'

    select @myDoc.query(@str)

    which returns

    Msg 8172, Level 16, State 1, Line 11

    The argument 1 of the XML data type method "query" must be a string literal.

    and I have tried

    DECLARE @STR varchar(8000)

    SET @STR = 'ACORD/InsuranceSvc/PersAutoPolicyAddRq/Producer/ProducerInfo/ContractNumber'

    select @myDoc.query('sql:variable("@str")')

    which returns

    ACORD/InsuranceSvc/PersAutoPolicyAddRq/Producer/ProducerInfo/ContractNumber

    Does anyone have any ideas on how I can do it?

    Thanks!

    Michael

  • April 30, 2009 at 5:05 pm

    #987085

    The only thing that comes to mind is dynamic sql.

    Wayne
    Microsoft Certified Master: SQL Server 2008
    Author - SQL Server T-SQL Recipes

    If you can't explain to another person how the code that you're copying from the internet works, then DON'T USE IT on a production system! After all, you will be the one supporting it!
    Links:
    For better assistance in answering your questions
    Performance Problems
    Common date/time routines
    Understanding and Using APPLY Part 1 & Part 2

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