Parse a soap envelope

Question

I have a SOAP response envelope that I am trying to parse using extractvalue.
The response is stored in a xmltype field in a table.
Table
create table ws_results
(x xmltype);SOAP Response
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
     <s:Header>
          <ActivityId CorrelationId="12855f8e-d2be-40c7-81d8-fafa3cf9a779" xmlns="http://schemas.microsoft.com/2004/09/ServiceModel/Diagnostics">d24174d3-e095-460a-b9f8-2bae66efe813</ActivityId>
     </s:Header>
     <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
          <FetchResponse xmlns="urn: WA.Ecy.ADS.FacilitySite.Services">
               <FacilitySiteId>99997167</FacilitySiteId>
          </FetchResponse>
     </s:Body>
</s:Envelope>Here is the SQL that I attempting to use to get the Facility Site ID out
select extractvalue(x,'/FetchResponse/FacilitySiteId') from ws_results;
select extractvalue(x,'/FetchResponse/FacilitySiteId','xmlns="http://microsoft.com/wsdl/types/"')
from ws_resultsThese returns a null.
Seems like this should be pretty straightforward and I am sure that I am missing something small. Any help would be appreciated.
Thanks, Tony

Answer 1

The problem seems to be (at least with me testing) is the xmlns="urn: WA.Ecy.ADS.FacilitySite.Services". Oracle considers it invalid xpath. If it is replaced with "http://www.ms.com/xml", then it seems OK with xpath. You can test this:
declare
     ---v_xmlText          clob ;      ---varchar2(32765);
     v_xmlText          sys.xmltype;
     v_FacID               varchar2(50) := null;
     v_FacilitySiteId     varchar2(50) := null;
     v_FacilitySiteName     varchar2(50) := null;
begin
     v_xmlText := sys.xmlType('
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
     <s:Header>
          <ActivityId CorrelationId="48538673-36c0-4f6d-8c05-94b753d0e3ab"
          xmlns="http://schemas.microsoft.com/2004/09/ServiceModel/Diagnostics">
          b4af9688-a929-4b9f-a187-fb68f3927240
          </ActivityId>
     </s:Header>
     <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema">
          <FacilitySiteResponse xmlns="http://www.ms.com/xml">
               <FacilitySiteEntity>
                    <Id>99997167</Id>
                    <FacilitySiteId>99997167</FacilitySiteId>
                    <FacilitySiteName>My New Test Facility</FacilitySiteName>
                    <FacilitySiteKeySearchName>My New Te</FacilitySiteKeySearchName>
                    <VirtualSiteFlag>78</VirtualSiteFlag>
                    <GeographicLocationId>99997167</GeographicLocationId>
                    <CreatedDate>2008-11-07T07:32:21.07</CreatedDate>
                    <ModifiedByName>taus461</ModifiedByName>
                    <ModifiedDate>2008-11-07T07:44:20.723</ModifiedDate>
                    <CreatedByName>taus461</CreatedByName>
               </FacilitySiteEntity>
               <GeographicLocationEntity>
                    <Id>99997167</Id>
                    <GeographicLocationId>99997167</GeographicLocationId>
                    <AddressLine1>2020 22nd Ave SE</AddressLine1>
                    <CityName>Olympia</CityName>
                    <CongressionalDistrictNumber xsi:nil="true"/>
                    <COORD_XTNT_CD xsi:nil="true"/>
                    <HorizontalDatumCode>3</HorizontalDatumCode>
                    <HorizontalAccuracyLevelCode>13</HorizontalAccuracyLevelCode>
                    <HorizontalCollectionMethodCode>2</HorizontalCollectionMethodCode>
                    <GeographicPositionCode>8</GeographicPositionCode>
                    <LatitudeDecimalNumber xsi:nil="true"/>
                    <LatitudeDegreeNumber xsi:nil="true"/>
                    <LocationVerifiedFlag xsi:nil="true"/>
                    <LatitudeMinutesNumber xsi:nil="true"/>
                    <LatitudeSecondsNumber xsi:nil="true"/>
                    <LongitudeDecimalNumber xsi:nil="true"/>
                    <LongitudeDegreeNumber xsi:nil="true"/>
                    <LongitudeMinutesNumber xsi:nil="true"/>
                    <LongitudeSecondsNumber xsi:nil="true"/>
                    <BaseReferenceCode>SPCS</BaseReferenceCode>
                    <SOURCE_SCALE_CD>99</SOURCE_SCALE_CD>
                    <VerticalMeasureNumber xsi:nil="true"/>
                    <VerticalMeasureUnitCode>FT</VerticalMeasureUnitCode>
                    <VerticalReferenceCode xsi:nil="true"/>
                    <VerticalCollectionMethodCode xsi:nil="true"/>
                    <VerticalDatumCode xsi:nil="true"/>
                    <VerticalAccuracyLevelCode xsi:nil="true"/>
                    <CountyCodeNumber xsi:nil="true"/>
                    <LocationDescription1>This is my test facility decription</LocationDescription1>
                    <EPARegionName xsi:nil="true"/>
                    <GISVerifiedFlag xsi:nil="true"/>
                    <LegislativeDistrictNumber xsi:nil="true"/>
                    <IndianLandFlag>78</IndianLandFlag>
                    <RangeDirectionCode xsi:nil="true"/>
                    <RangeNumber xsi:nil="true"/>
                    <RegionCode/>
                    <SectionNumber xsi:nil="true"/>
                    <StateCode>WA</StateCode>
                    <SPCSXCoordinateNumber xsi:nil="true"/>
                    <SPCSYCoordinateNumber xsi:nil="true"/>
                    <SPCSZoneCode xsi:nil="true"/>
                    <TownshipDirectionCode xsi:nil="true"/>
                    <TownshipNumber xsi:nil="true"/>
                    <UTMXCoordinateNumber xsi:nil="true"/>
                    <UTMYCoordinateNumber xsi:nil="true"/>
                    <UTMZoneCode xsi:nil="true"/>
                    <WRIAIdNumber xsi:nil="true"/>
                    <ZipCode>98501</ZipCode>
                    <PLAIndicatorCode xsi:nil="true"/>
                    <GISReferenceNumber xsi:nil="true"/>
                    <GISCalculatedLatDecimalNumber xsi:nil="true"/>
                    <GISCalculatedLongDecimalNumber xsi:nil="true"/>
                    <ModifiedByName>taus461</ModifiedByName>
                    <ModifiedDate>2008-11-07T07:44:20.74</ModifiedDate>
                    <CreatedDate xsi:nil="true"/>
                    <CreatedByName>taus461</CreatedByName>
                    <FacilitySite>
                         <Id>99997167</Id>
                         <FacilitySiteId>99997167</FacilitySiteId>
                         <FacilitySiteName>My New Test Facility</FacilitySiteName>
                         <FacilitySiteKeySearchName>My New Te</FacilitySiteKeySearchName>
                         <VirtualSiteFlag>78</VirtualSiteFlag>
                         <GeographicLocationId>99997167</GeographicLocationId>
                         <CreatedDate>2008-11-07T07:32:21.07</CreatedDate>
                         <ModifiedByName>taus461</ModifiedByName>
                         <ModifiedDate>2008-11-07T07:44:20.723</ModifiedDate>
                         <CreatedByName>taus461</CreatedByName>
                    </FacilitySite>
               </GeographicLocationEntity>
               <IsOperationSuccess>true</IsOperationSuccess>
          </FacilitySiteResponse>
     </s:Body>
</s:Envelope>');
     select fac.facID, fac.FacilitySiteId, fac.FacilitySiteName
          into v_FacID, v_FacilitySiteId, v_FacilitySiteName
     from
     xmltable
          xmlnamespaces
               default 'http://www.ms.com/xml'     
               ---'http://www.ms.com/xml'
               ---'http://schemas.xmlsoap.org/ws/2004/08/addressing' as "wsa",
               ---'http://www.w3.org/2003/05/soap-envelope' as "soap"
          '//FacilitySiteResponse'
          passing v_xmlText
          columns
          FacID               varchar2(50)     path     '//FacilitySiteEntity/Id',
          FacilitySiteId          varchar2(50)     path     '//FacilitySiteEntity/FacilitySiteId',
          FacilitySiteName     varchar2(50)     path     '//FacilitySiteEntity/FacilitySiteName'
     ) fac;
     dbms_output.put_line('FacID = ' || v_FacID);
     dbms_output.put_line('FacSiteID = ' || v_FacilitySiteId);
     dbms_output.put_line('FacSiteName = ' || v_FacilitySiteName);
                select extractValue(v_xmlText, '//FacilitySiteResponse/FacilitySiteEntity/Id', 'xmlns="http://www.ms.com/xml"')
     into v_FacID from dual;
               dbms_output.put_line('FacID = ' || v_FacID);
end;
/FacID = 99997167
FacSiteID = 99997167
FacSiteName = My New Test Facility
FacID = 99997167
PL/SQL procedure successfully completed.