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Parsing an XML field with TSQL

Posted on 2014-02-20
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Last Modified: 2014-02-20
I have a table (MyTable) with an XML field (MyField).  Sample data in MyField looks like:

<MyConfigData>
  <Pending />
  <Current>
    <MyInputConfig IO1Enabled="true" IO2Enabled="true" IO3Enabled="true" IO1xxxxx="false" IO2xxxxx="false" IO3xxxxx="true" IO1yyyyy="1" IO2yyyyy="1" IO3yyyyy="0" IO1zzzzz="false" IO2zzzzz="true" IO3zzzzz="false" SentUTC="2010-06-01T18:23:50.12Z" Status="2" MessageSourceID="999999" />
  </Current>
</MyConfigData>


I need to be able to query MyField to get the values for IO2xxxxx and IO3xxxxx but I can't seem to get these values out of the XML.

How do you query the XML to get these values out?
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Question by:n f
3 Comments
 
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Expert Comment

by:oromm
ID: 39874528
Try this:

declare @xml xml = N'<MyConfigData>
  <Pending />
  <Current>
    <MyInputConfig IO1Enabled="true" IO2Enabled="true" IO3Enabled="true" IO1xxxxx="false" IO2xxxxx="false" IO3xxxxx="true" IO1yyyyy="1" IO2yyyyy="1" IO3yyyyy="0" IO1zzzzz="false" IO2zzzzz="true" IO3zzzzz="false" SentUTC="2010-06-01T18:23:50.12Z" Status="2" MessageSourceID="999999" />
  </Current>
</MyConfigData>'
;
select [Current].Config.value('(MyInputConfig/@IO2xxxxx)[1]', 'varchar(10)') [IO2xxxxx]
 , [Current].Config.value('(MyInputConfig/@IO3xxxxx)[1]', 'varchar(10)') [IO3xxxxx]
 , [Current].Config.value('(MyInputConfig/@MessageSourceID)[1]', 'varchar(10)') [MessageSourceID]
from @xml.nodes('/MyConfigData/Current') as [Current](Config)
;

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Accepted Solution

by:
Brian Crowe earned 500 total points
ID: 39874585
SELECT MyField.value('(/MyConfigData/Current/MyInputConfig/@IO2xxxxx)[1]', 'VARCHAR(50)') AS IO2xxxxx,
   MyField.value('(/MyConfigData/Current/MyInputConfig/@IO3xxxxx)[1]', 'VARCHAR(50)') AS IO3xxxxx
FROM MyTable
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Author Closing Comment

by:n f
ID: 39874662
This worked perfectly. Thank you!
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