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namespace prefix "xsi" is not declared [message #148564]

Fri, 25 November 2005 01:06

meelis
Messages: 1
Registered: November 2005

Junior Member

Hello,
I have not found a solution for my problem, so I need some help please.

I have this test procedure to illustrate my problem (Oracle 9i):

procedure MV_test1
is
  xXml XMLType;
begin

    xXml:=xmltype.createXML(
'<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
 xmlns:ns4="http://test.ee/xsd/xt.xsd"
 SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Header>
<ns4:id xsi:type="xsd:string">MPf8bN87N98fKI6OeaKhQPOhdhN67d6gede7Qgch</ns4:id>
</SOAP-ENV:Header>
<SOAP-ENV:Body>

<m:test10Response xmlns:m="http://producers.test.ee/producer/test-kxt">
<query>
<ees xsi:type="xsd:string">Jonh</ees>
<per xsi:type="xsd:string">Smith</per>
</query>
<body>
<docData xsi:type="SOAP-ENC:Array" SOAP-ENC:arrayType="Struct[2]" SOAP-ENC:offset="[0]">
<item>
<ees xsi:type="xsd:string">Kate</ees>
<per xsi:type="xsd:string">Smith</per>
<tyyp xsi:type="xsd:string">7</tyyp>
</item>
<item>
<ees xsi:type="xsd:string">Robert</ees>
<per xsi:type="xsd:string">Smith</per>
<tyyp xsi:type="xsd:string">6</tyyp>
</item>
</docData>
</body>
</m:test10Response>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>');

    for i1 in ( select extractvalue (value(d), 'item/ees') ees
                from table (XMLSequence(xXml.extract('//body/docData/item'))) d )
    loop
        raise_application_error(-20013,'STOPPED: '||i1.ees);
    end loop;
end;

The FOR loop gives the error:

ORA-31011: XML parsing failed ORA-19202: Error occurred in XML processing LPX-00234: namespace prefix "xsi" is not declared ...

I know that functions "extract" and "extractvalue" have a second parameter for namespace but I don't know how to use it.

I have tried
Code:

    for i1 in ( select extractvalue (value(d), 'item/ees','xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"') ees
                from table (XMLSequence(xXml.extract('//body/docData/item','xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'))) d )
    loop
        raise_application_error(-20013,'STOPPED: '||i1.ees);
    end loop;

but with no success.

If I remove 'xsi:' from the xml or change the <item> tag with <item xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> then the FOR loop works.

But the thing is that I cannot change the XML!
Please advise how to use the second parameter in extract and extractvalue.

Thank you

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Re: namespace prefix "xsi" is not declared [message #149738 is a reply to message #148564]

Sat, 03 December 2005 14:32

mchadder
Messages: 224
Registered: May 2005
Location: UK

Senior Member

Hello.

This seems to be the known issue of namespace mis-handling when dealing with the .EXTRACT method of XMLTYPE. Unfortunately, I haven't got a 9i instance available to test this, but check out
http://www.oratechinfo.co.uk/sqlxml.html#point3 for more information on this problem.

Basically, though, it just boils down to using the EXTRACT function as opposed to the .EXTRACT method, so instead of

xXml.extract('//body/docData/item')

You would use

EXTRACT(xXml, '//body/docData/item')

Hth

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