How to use xquery on attributs

Question

Hi,
I have  an XML column in a table that contains only attribute information that I need to shred:
'<dimensions><dimension name="width"      value="12.77"/><dimension
name="height"      value="0.14"/><dimension name="depth"      value="12.92"/><dimension name="weight" value="0.58"/></dimensions>'
      or
'<dimensions><dimension      name="height" value="0.14"/></dimensions>'
into two columns dimtype and dimvalue. What xquery would do this?
thanks
oldmandba

Answer 1

Try this
CREATE TABLE #demo (field1 xml)
INSERT INTO #demo (field1)
values ('<dimensions>
<dimension name="height" value="0.14" />
<dimension name="width" value="12.77"/>
<dimension name="depth" value="12.92"/>
</dimensions>')
select * from #demo
select
dimtype,
dimvalue
FROM
SELECT x.v.value('@name[1]', 'VARCHAR(100)') AS dimtype ,
x.v.value('@value[1]', 'VARCHAR(100)') AS dimvalue
from #demo
cross apply field1.nodes('/dimensions/dimension') x(v)
)T
where
T.dimtype in('height','width')
OR
DECLARE @xml XML
SELECT @xml =
'<dimensions>
<dimension name="height" value="0.14" />
<dimension name="width" value="12.77"/>
<dimension name="depth" value="12.92"/>
</dimensions>'
SELECT x.v.value('@name[1]', 'VARCHAR(100)') AS dimtype ,
x.v.value('@value[1]', 'VARCHAR(100)') AS dimvalue
FROM @xml.nodes('/dimensions/dimension') x(v)
where x.v.value('@name[1]', 'VARCHAR(100)') in('height','width')