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How to parse XML field in SQL Server 2008 R2

Posted on 2014-03-27
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Last Modified: 2014-03-28
Hello, I'm trying to parse an XML field in a third party database and I haven't had any luck returning any of the individual elements.  I've been able to parse XML with nested tags before, but apparantly this is too complex.  

Specifically, I need to return all of the RiskCode, Description and Sequence values from the HighRiskIndicators section - but eventually I'll need to return all of the values.

I've attached a sample of the XML below.  Any and all help is greatly appreciated.
XML-Sample.txt
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Question by:EasyNiner
  • 3
5 Comments
 
LVL 75

Accepted Solution

by:
Anthony Perkins earned 500 total points
ID: 39960579
Try it this way:
;WITH XMLNAMESPACES ('http://webservices.seisint.com/WsIdentity'  AS WS)

SELECT	T.C.value('WS:RiskCode[1]', 'varchar(10)') RiskCode,	-- Change the data type as appropriate
	T.C.value('WS:Description[1]', 'varchar(100)') [Description],
	T.C.value('WS:Sequence[1]', 'varchar(100)') Sequence
FROM	YourTable
	CROSS APPLY X.nodes('InstantIDModelResponse/WS:Result/WS:Models/WS:Model/WS:Scores/WS:Score/WS:HighRiskIndicators/WS:HighRiskIndicator') T(C)

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LVL 75

Expert Comment

by:Anthony Perkins
ID: 39960589
This is how I tested it:
DECLARE @YourTable TABLE (X Xml)
INSERT @YourTable(X) 
VALUES (
'<InstantIDModelResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Header xmlns="http://webservices.seisint.com/WsIdentity">
    <Status>0</Status>
    <QueryId>1234</QueryId>
    <TransactionId>1311111R700000</TransactionId>
  </Header>
  <Result xmlns="http://webservices.seisint.com/WsIdentity">
    <InputEcho>
      <Name>
        <First>TOM</First>
        <Last>SMITH</Last>
      </Name>
      <Address>
        <StreetAddress1>123 Main St</StreetAddress1>
        <City>DESOTO</City>
        <State>TX</State>
        <Zip5>75110</Zip5>
      </Address>
      <DOB>
        <Year>1980</Year>
        <Month>1</Month>
        <Day>15</Day>
      </DOB>
      <Age>34</Age>
      <SSN>123456789</SSN>
      <HomePhone>4697219454</HomePhone>
    </InputEcho>
    <Models>
      <Model>
        <Name>ConsumerVerificationIndex</Name>
        <Scores>
          <Score>
            <Type>nas</Type>
            <Value>8</Value>
            <HighRiskIndicators>
              <HighRiskIndicator>
                <RiskCode>03</RiskCode>
                <Description>The input SSN was issued prior to the input date-of-birth</Description>
                <Sequence>1</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>26</RiskCode>
                <Description>Unable to verify SSN/TIN</Description>
                <Sequence>2</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>27</RiskCode>
                <Description>Unable to verify phone number</Description>
                <Sequence>3</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>52</RiskCode>
                <Description>The input first name is not associated with input SSN</Description>
                <Sequence>4</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>10</RiskCode>
                <Description>The input phone number is a mobile number</Description>
                <Sequence>5</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>82</RiskCode>
                <Description>The input name and address return a different phone number</Description>
                <Sequence>6</Sequence>
              </HighRiskIndicator>
            </HighRiskIndicators>
          </Score>
        </Scores>
      </Model>
    </Models>
    <DOBVerified>true</DOBVerified>
  </Result>
</InstantIDModelResponse>')

;WITH XMLNAMESPACES ('http://webservices.seisint.com/WsIdentity'  AS WS)

SELECT	T.C.value('WS:RiskCode[1]', 'varchar(10)') RiskCode,		-- Change the data type as appropriate
	T.C.value('WS:Description[1]', 'varchar(100)') [Description],
	T.C.value('WS:Sequence[1]', 'varchar(100)') Sequence
FROM	@YourTable
	CROSS APPLY X.nodes('InstantIDModelResponse/WS:Result/WS:Models/WS:Model/WS:Scores/WS:Score/WS:HighRiskIndicators/WS:HighRiskIndicator') T(C)

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Output :
03	The input SSN was issued prior to the input date-of-birth	1
26	Unable to verify SSN/TIN					2
27	Unable to verify phone number					3
52	The input first name is not associated with input SSN		4
10	The input phone number is a mobile number			5
82	The input name and address return a different phone number	6

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Author Closing Comment

by:EasyNiner
ID: 39960666
That was exactly what I was looking for.  I thought I only had to use the namespace alias for the parent tag.  Thanks again!
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LVL 12

Expert Comment

by:Jeff Darling
ID: 39961622
I know this was already solved, but I tried it in MS SQL 2005 without using cross apply and a table.

This may help someone else with a similar issue with XML Namespaces.

DECLARE @myxml as XML;
set @myxml='<InstantIDModelResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Header xmlns="http://webservices.seisint.com/WsIdentity">
    <Status>0</Status>
    <QueryId>1234</QueryId>
    <TransactionId>1311111R700000</TransactionId>
  </Header>
  <Result xmlns="http://webservices.seisint.com/WsIdentity">
    <InputEcho>
      <Name>
        <First>TOM</First>
        <Last>SMITH</Last>
      </Name>
      <Address>
        <StreetAddress1>123 Main St</StreetAddress1>
        <City>DESOTO</City>
        <State>TX</State>
        <Zip5>75110</Zip5>
      </Address>
      <DOB>
        <Year>1980</Year>
        <Month>1</Month>
        <Day>15</Day>
      </DOB>
      <Age>34</Age>
      <SSN>123456789</SSN>
      <HomePhone>4697219454</HomePhone>
    </InputEcho>
    <Models>
      <Model>
        <Name>ConsumerVerificationIndex</Name>
        <Scores>
          <Score>
            <Type>nas</Type>
            <Value>8</Value>
            <HighRiskIndicators>
              <HighRiskIndicator>
                <RiskCode>03</RiskCode>
                <Description>The input SSN was issued prior to the input date-of-birth</Description>
                <Sequence>1</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>26</RiskCode>
                <Description>Unable to verify SSN/TIN</Description>
                <Sequence>2</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>27</RiskCode>
                <Description>Unable to verify phone number</Description>
                <Sequence>3</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>52</RiskCode>
                <Description>The input first name is not associated with input SSN</Description>
                <Sequence>4</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>10</RiskCode>
                <Description>The input phone number is a mobile number</Description>
                <Sequence>5</Sequence>
              </HighRiskIndicator>
              <HighRiskIndicator>
                <RiskCode>82</RiskCode>
                <Description>The input name and address return a different phone number</Description>
                <Sequence>6</Sequence>
              </HighRiskIndicator>
            </HighRiskIndicators>
          </Score>
        </Scores>
      </Model>
    </Models>
    <DOBVerified>true</DOBVerified>
  </Result>
</InstantIDModelResponse>';


;WITH XMLNAMESPACES ('http://webservices.seisint.com/WsIdentity'  AS WS)

SELECT
  Nodes.node.value('WS:RiskCode[1]', 'varchar(10)')  RiskCode,
  Nodes.node.value('WS:Description[1]', 'varchar(100)')   [Description],
  Nodes.node.value('WS:Sequence[1]', 'varchar(100)') Sequence
FROM
@myxml.nodes('InstantIDModelResponse/WS:Result/WS:Models/WS:Model/WS:Scores/WS:Score/WS:HighRiskIndicators/WS:HighRiskIndicator') AS Nodes(node);	

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MS SQL Query XML with namespaces Example
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LVL 75

Expert Comment

by:Anthony Perkins
ID: 39963029
The reason you have to use CROSS APPLY is because you are going against an Xml column ("I'm trying to parse an XML field in a third party database") and more than likely the author will want to select values from the table.

Having said that, if this was a trivial case of querying an Xml variable then yes for sure you are on the right track.
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