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Using Xpath with Node Names with Colons (:)

509419Apr 13 2007 — edited Apr 17 2007
Hi,

I'm attempting to retrieve the contents of "soapenv:Envelope" from the following xml:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/X
MLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<responseTime soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xmlns="https://adwords.google.com/api/adwords/v8">86</responseTime>
<operations soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xmlns="https://adwords.google.com/api/adwords/v8">1</operations>
<units soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xmlns="https://adwords.google.com/api/adwords/v8">1</units>
<requestId soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xmlns="https://adwords.google.com/api/adwords/v8">d0bbb12ab9f3bd0523140b19767ef5dc</requestId>
</soapenv:Header>
</soapenv:Envelope>

I've tried using :

select extractValue(xml_data, '/soapenv:Envelope/@*') from XMLTable;

(assuming that xml_data is of type xmlType)

and receive the error:
ERROR at line 1:
ORA-31013: Invalid XPATH expression

However, if use the following:

select extract(xml_data, '//*[starts-with(name(),"soapenv:E")from XMLTable;

I get:

EXTRACT(XML_DATA,'//*[STARTS-WITH(NAME(),"SOAPENV:E")]')
--------------------------------------------------------------------------------
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmln

What gives...? How can I use the former query instead of the latter...?

Thanks...!

J

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Locked on May 15 2007
Added on Apr 13 2007
#performance-availability, #xml-db
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