Problem with parsing XML with multiple namespace into SQL - sql

Question

I've got problem with parsing informations from XML into SQL with double namespace.
Have a look at this code:
DECLARE #Handle AS INT; -- The handle of the XML data, passed to sp_xml_preparedocument
DECLARE #Xml AS NVARCHAR(1000); -- The XML document for this example
SET #Xml = N'
<SiBikNet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="https://www.ws.bik.pl/ws/ki/2v2/types">
<BIK_REQUEST>
<siBikNetResponse>
<consentDate>2018-07-29</consentDate>
<citizenshipStatus>citizen</citizenshipStatus>
<nationality>PL</nationality>
<pesel>123</pesel>
</siBikNetResponse>
</BIK_REQUEST>
</SiBikNet>';
EXEC sys.sp_xml_preparedocument #Handle OUTPUT , #Xml, N'<SiBikNet xmlns:t="https://www.ws.bik.pl/ws/ki/2v2/types"/>'; --Prepare a parsed document
SELECT *
FROM
OPENXML(#Handle,'/t:SiBikNet/t:BIK_REQUEST/t:siBikNetResponse', 2)
WITH ( nationality NVARCHAR(10) 't:nationality',
pesel NVARCHAR(10) 't:pesel '
);
EXEC sys.sp_xml_removedocument #Handle;
Which gives me proper output in forms of table with 2 columns.
But when I will add one row with double namespace: then I cannot parse this informations :
DECLARE #Handle AS INT; -- The handle of the XML data, passed to sp_xml_preparedocument
DECLARE #Xml AS NVARCHAR(1000); -- The XML document for this example
SET #Xml = N'
<SiBikNet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="https://www.ws.bik.pl/ws/ki/2v2/types">
<BIK_REQUEST xmlns="">
<siBikNetResponse>
<consentDate>2018-07-29</consentDate>
<citizenshipStatus>citizen</citizenshipStatus>
<nationality>PL</nationality>
<pesel>123</pesel>
</siBikNetResponse>
</BIK_REQUEST>
</SiBikNet>';
EXEC sys.sp_xml_preparedocument #Handle OUTPUT , #Xml, N'<SiBikNet xmlns:t="https://www.ws.bik.pl/ws/ki/2v2/types"/>'; --Prepare a parsed document
SELECT *
FROM
OPENXML(#Handle,'/t:SiBikNet/t:BIK_REQUEST/t:siBikNetResponse', 2)
WITH ( nationality NVARCHAR(10) 't:nationality',
pesel NVARCHAR(10) 't:pesel '
);
EXEC sys.sp_xml_removedocument #Handle;
Can anyone help ?

Answer 1

When I get stuck with anonymous namespaces or oddball namespace combinations, the simplest way is to just use the XPath function local-name(). Like this:
DECLARE #Handle AS INT; -- The handle of the XML data, passed to sp_xml_preparedocument
DECLARE #Xml AS NVARCHAR(1000); -- The XML document for this example
SET #Xml = N'
<SiBikNet xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="https://www.ws.bik.pl/ws/ki/2v2/types">
<BIK_REQUEST xmlns="">
<siBikNetResponse>
<consentDate>2018-07-29</consentDate>
<citizenshipStatus>citizen</citizenshipStatus>
<nationality>PL</nationality>
<pesel>98070902702</pesel>
</siBikNetResponse>
</BIK_REQUEST>
</SiBikNet>';
EXEC sys.sp_xml_preparedocument #Handle OUTPUT , #Xml, N'<SiBikNet xmlns:t="https://www.ws.bik.pl/ws/ki/2v2/types"/>'; --Prepare a parsed document
SELECT *
FROM
OPENXML(#Handle,'/*[local-name()="SiBikNet"]/*[local-name()="BIK_REQUEST"]/*[local-name()="siBikNetResponse"]', 2)
WITH ( nationality NVARCHAR(10) ,--'t:nationality',
pesel NVARCHAR(10) --'t:pesel '
);
EXEC sys.sp_xml_removedocument #Handle;