Numeric Compare two xml nodes in SQL SERVER

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Numeric Compare two xml nodes in SQL SERVER

Author

Topic

Neeli
Starting Member

1 Post

Posted - 2013-10-21 : 03:06:37

I have a column XMLRECORD of XML type in a table called ABCD. My records are

<row id="100" xml:space="preserve">
<c9>400</c9>
<c10>4000</c10>
</row>

<row id="90" xml:space="preserve">
<c9>324</c9>
<c10>34</c10>
</row>
I am trying to compare the two nodes of this XMLRECORD using the query

SELECT XMLRECORD FROM ABCD WHERE XMLRECORD.exist(N'/row[c9/text() < c10/text()]') = 1

When executed in SQL SERVER it displays both the records doing the ASCII compare. How to force the SQL SERVER to go for a numeric compare?

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-10-21 : 09:11:03

cast and then do the comparison.
See this illustration


declare @x table
( x xml
)
insert @x
values('<row id="100" xml:space="preserve">
<c9>400</c9>
<c10>4000</c10>
</row>'),
('<row id="90" xml:space="preserve">
<c9>324</c9>
<c10>34</c10>
</row>')

SELECT * FROM @x WHERE x.exist('/row[c9[1] cast as xs:integer?  < c10[1] cast as xs:integer?]') = 1


output
-------------------------------------
x
-------------------------------------
<row id="100" xml:space="preserve">
<c9>400</c9>
<c10>4000</c10>
</row>

------------------------------------------------------------------------------------------------------
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