Extracting the data from web service response

Question

Hi,
I called a web service and in response got an XML data, now I have to extract the values and store in table
My steps,
1,call web service
2,stored response in CLOB column
3,Then used following query
SELECT loc.*
FROM my_xml PO,
XMLTable(XMLNAMESPACES(
'urn:schemas-microsoft-com:xml-diffgram-v1' as "diffgr"
,'http://api.***.com/' as "ns0"
,'/ns0:DataSet/diffgr:diffgram/NewDataSet/OptOutAll'
PASSING xmltype.createxml(PO.xml_data)
COLUMNS
"Email" CHAR(100) PATH 'Email',
"Reason" CHAR(150) PATH 'Reason'
) As loc
WHERE ROWNUM <= 10;
I have written it by using this example
But it is not working, dont know why
/Zab

Answer 1

If I use the following sample XML (stored in XMLType table TMP_XML) :
<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <GetOptOutAllResponse xmlns="http://api.***.com/">
      <GetOptOutAllResult>
        <xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas- microsoft-com:xml-msdata">
          <xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
            <xs:complexType>
              <xs:choice minOccurs="0" maxOccurs="unbounded">
                <xs:element name="OptOutAll">
                  <xs:complexType>
                    <xs:sequence>
                      <xs:element name="OptOutTime" type="xs:dateTime" minOccurs="0"/>
                      <xs:element name="Email" type="xs:string" minOccurs="0"/>
                      <xs:element name="MailingList" type="xs:string" minOccurs="0"/>
                      <xs:element name="SendQueueId" type="xs:int" minOccurs="0"/>
                      <xs:element name="Reason" type="xs:string" minOccurs="0"/>
                    </xs:sequence>
                  </xs:complexType>
                </xs:element>
              </xs:choice>
            </xs:complexType>
          </xs:element>
        </xs:schema>
        <diffgr:diffgram xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1">
          <NewDataSet xmlns="">
            <OptOutAll diffgr:id="OptOutAll1" msdata:rowOrder="0" diffgr:hasChanges="inserted">
              <OptOutTime>2012-05-09T22:40:00+02:00</OptOutTime>
              <MailingList>information</MailingList>
              <SendQueueId>111111</SendQueueId>
              <Reason>Subscriber confirmed</Reason>
            </OptOutAll>
            <OptOutAll diffgr:id="OptOutAll2" msdata:rowOrder="1" diffgr:hasChanges="inserted">
              <OptOutTime>2012-06-07T22:30:00+02:00</OptOutTime>
              <MailingList>information</MailingList>
              <SendQueueId>111111</SendQueueId>
              <Reason>Subscriber confirmed</Reason>
            </OptOutAll>
            <OptOutAll diffgr:id="OptOutAll3" msdata:rowOrder="2" diffgr:hasChanges="inserted">
              <OptOutTime>2012-06-14T00:20:00+02:00</OptOutTime>
              <MailingList>information</MailingList>
              <SendQueueId>111111</SendQueueId>
              <Reason>Subscriber confirmed</Reason>
            </OptOutAll>
            <OptOutAll diffgr:id="OptOutAll4" msdata:rowOrder="3" diffgr:hasChanges="inserted">
              <OptOutTime>2012-06-19T20:50:00+02:00</OptOutTime>
              <MailingList>information</MailingList>
              <SendQueueId>111111</SendQueueId>
              <Reason>Subscriber confirmed</Reason>
            </OptOutAll>
          </NewDataSet>
        </diffgr:diffgram>
      </GetOptOutAllResult>
    </GetOptOutAllResponse>
  </soap:Body>
</soap:Envelope>Then I can do :
SQL> SELECT x.*
  2  FROM tmp_xml t
  3     , XMLTable(
  4         XMLNamespaces(
  5           'http://www.w3.org/2003/05/soap-envelope' as "soap"
  6         , 'urn:schemas-microsoft-com:xml-diffgram-v1' as "diffgr"
  7         , 'http://api.***.com/' as "ns0"
  8         )
  9       , '/soap:Envelope/soap:Body/ns0:GetOptOutAllResponse/ns0:GetOptOutAllResult/diffgr:diffgram/NewDataSet/OptOutAll'
10         PASSING t.object_value
11         COLUMNS OptOutTime  TIMESTAMP WITH TIME ZONE PATH 'OptOutTime'
12               , MailingList VARCHAR2(100)            PATH 'MailingList'
13               , Reason      VARCHAR2(150)            PATH 'Reason'
14       ) x
15  ;
OPTOUTTIME                          MAILINGLIST                    REASON
09/05/12 22:40:00,000000 +02:00     information                    Subscriber confirmed
07/06/12 22:30:00,000000 +02:00     information                    Subscriber confirmed
14/06/12 00:20:00,000000 +02:00     information                    Subscriber confirmed
19/06/12 20:50:00,000000 +02:00     information                    Subscriber confirmed
Are you getting anything different?