Extract information from XML to SQL Server temp table - sql

Question

I am working with some XML and I have an issue.
The xml looks like this:
<tagvalues>
<tagvalue>
<tag>Data.Barcode</tag>
<value>True</value>
</tagvalue>
<tagvalue>
<tag>Data.DateStampFirstScale</tag>
<value>20180111</value>
</tagvalue>
<tagvalue>
<tag>Data.DateStampLastScale</tag>
<value>20180111</value>
</tagvalue>
<tagvalue>
<tag>Data.Dot</tag>
<value>False</value>
</tagvalue>
<tagvalue>
<tag>Data.Hangtab</tag>
<value>False</value>
</tagvalue>
<tagvalue>
<tag>Data.Scale_x.Scale_0.Deviation</tag>
<value>0</value>
</tagvalue>
<tagvalue>
<tag>Data.Scale_x.Scale_0.DeviationHigh</tag>
<value>False</value>
</tagvalue>
<tagvalue>
<tag>Data.Scale_x.Scale_0.DeviationLimitHigh</tag>
<value>0</value>
</tagvalue>
</tagvalues>
and currently I'm getting the data with this code:
#data.value('/tagvalues[1]/tagvalue[3]/value[1]', 'nvarchar(100)')
The problem I'm having is that sometimes the order is changed, which means that I have to reconfigure it again.
Is it not possible to convert the XML text into an temp table like so:
Tag Value
--------------------------------------------------
Data.Barcode TRUE
Data.DateStampFirstScale 20180111
Data.DateStampLastScale 20180111
Data.Dot FALSE
Data.Hangtab FALSE
Data.Scale_x.Scale_0.Deviation 0
Data.Scale_x.Scale_0.DeviationHigh FALSE
Data.Scale_x.Scale_0.DeviationLimitHigh 0

Answer 1

Try the XQuery.. .nodes()
select n.value('tag[1]', 'varchar(max)') [Tag],
n.value('value[1]', 'varchar(max)') [Value]
from #xml.nodes('tagvalues/tagvalue') as p(n)

Answer 2

You mean like this?
DECLARE #XML xml;
SET #XML =
'<tagvalues>
<tagvalue>
<tag>Data.Barcode</tag>
<value>True</value>
</tagvalue>
<tagvalue>
<tag>Data.DateStampFirstScale</tag>
<value>20180111</value>
</tagvalue>
<tagvalue>
<tag>Data.DateStampLastScale</tag>
<value>20180111</value>
</tagvalue>
<tagvalue>
<tag>Data.Dot</tag>
<value>False</value>
</tagvalue>
<tagvalue>
<tag>Data.Hangtab</tag>
<value>False</value>
</tagvalue>
<tagvalue>
<tag>Data.Scale_x.Scale_0.Deviation</tag>
<value>0</value>
</tagvalue>
<tagvalue>
<tag>Data.Scale_x.Scale_0.DeviationHigh</tag>
<value>False</value>
</tagvalue>
<tagvalue>
<tag>Data.Scale_x.Scale_0.DeviationLimitHigh</tag>
<value>0</value>
</tagvalue>
</tagvalues>'
SELECT X.N.value('(tag/text())[1]','varchar(50)') AS Tag,
X.N.value('(value/text())[1]','varchar(50)') AS [Value]
FROM #XML.nodes('/tagvalues/tagvalue') X(N);