Xquery nodes value

I need to get the value of AccountName in my table

<rows>
  <Row xmlns="http://adcenter.microsoft.com/advertiser/repor开发者_StackOverflow中文版ting/v5/XMLSchema">
    <AccountName value="MA_Yellowpages - AdStore" />
  </Row>
</rows>

I am using below thing -

;WITH XMLNAMESPACES('http://adcenter.microsoft.com/advertiser/reporting/v5/XMLSchema' AS ns)
select
temp.query('AccountName[1]').value('@value','varchar(1000)') AS AC
from  yp.dbo.Audit_ApiCallRawXml CROSS APPLY
      RawXML.nodes('/rows/ns:Row') lg(temp)

You're almost there - but you need to also make sure to use the XML namespace on the AccountName element that is inside the <Row> node. Additionally, I would write your query like this:

;WITH XMLNAMESPACES('http://adcenter.microsoft.com/advertiser/reporting/v5/XMLSchema' AS ns)
SELECT
   temp.value('(ns:AccountName/@value)[1]', 'varchar(1000)') AS AC
FROM
   yp.dbo.Audit_ApiCallRawXml 
CROSS APPLY
   RawXML.nodes('/rows/ns:Row') lg(temp)

This should hopefully work then.