Query XML with stylesheet/namespace included in the xml - sql-server

Question

I have tried several ways to query this data out, but have not been successful. I am on SQL Server 2012. Any help would be appreciated.
<NewDataSet>
<Table>
<_x005B_M_x005D_._x005B_SEQID_x005D_ xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:short">200</_x005B_M_x005D_._x005B_SEQID_x005D_>
<_x005B_M_x005D_._x005B_CPID_x005D_ xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">1002</_x005B_M_x005D_._x005B_CPID_x005D_>
</Table>
</NewDataSet>

Answer 1

It would help to have more details on what exactly you want to get out of this, but here is a start, assuming each Element of the XML represents a row:
DECLARE #SampleData XML = N'
<NewDataSet>
<Table>
<_x005B_M_x005D_._x005B_SEQID_x005D_ xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:short">200</_x005B_M_x005D_._x005B_SEQID_x005D_>
<_x005B_M_x005D_._x005B_CPID_x005D_ xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">1002</_x005B_M_x005D_._x005B_CPID_x005D_>
</Table>
</NewDataSet>
';
DECLARE #Delim VARCHAR(50) = '._x005B_';
DECLARE #DelimLen INT = LEN(#Delim);
;WITH cte AS
(
SELECT xrow.value('local-name(.)', 'VARCHAR(50)') AS [ElementName],
xrow.value('declare namespace xsi="http://www.w3.org/2001/XMLSchema-instance"; (./#xsi:type)[1]', 'VARCHAR(50)') AS [xsi:type],
xrow.value('./text()[1]', N'VARCHAR(50)') AS [ElementValue]
FROM #SampleData.nodes('NewDataSet/Table/*') t(xrow)
)
SELECT *,
SUBSTRING(
cte.ElementName,
CHARINDEX(#Delim, cte.ElementName) + #DelimLen,
CHARINDEX('_',
cte.ElementName,
CHARINDEX(#Delim, cte.ElementName) + #DelimLen + 1) -
(CHARINDEX(#Delim, cte.ElementName) + #DelimLen)
) AS [RowType]
FROM cte;
Output:
ElementName xsi:type ElementValue RowType
_x005B_M_x005D_._x005B_SEQID_x005D_ xs:short 200 SEQID
_x005B_M_x005D_._x005B_CPID_x005D_ xs:string 1002 CPID

Answer 2

declare #demo xml = '<NewDataSet>
<Table>
<_x005B_M_x005D_._x005B_SEQID_x005D_ xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:short">200</_x005B_M_x005D_._x005B_SEQID_x005D_>
<_x005B_M_x005D_._x005B_CPID_x005D_ xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">1002</_x005B_M_x005D_._x005B_CPID_x005D_>
</Table>
</NewDataSet>'
select t.r.value('(./*[local-name()=''_x005B_M_x005D_._x005B_SEQID_x005D_'']/text())[1]','integer') seqid
, t.r.value('(./*[local-name()=''_x005B_M_x005D_._x005B_CPID_x005D_'']/text())[1]','nvarchar(128)') cpid
from #demo.nodes('/*/*') t(r)
SQL Fiddle: http://sqlfiddle.com/#!6/d41d8/21769