Fetch 1-n relation data from XML Data using XMLTable

Question

Dear All,
Following query is running fine.
with t as (select XMLType('<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">
   <env:Header/>
   <env:Body>
      <nm:CustomerCRMByIDResponse xmlns:nm="http://sap.com/xi/CRM/Global2" xmlns:prx="urn:sap.com:proxy:DCT:/1SAI/TAS57DF0B317943DEAE3C49:702">
         <MessageHeader/>
         <BusinessPartner>
            <InternalID>2200117598</InternalID>           
            <AddressInformation>
               <UUID>51471396-9ae8-3cc0-e100-80000a031a28</UUID>
                                    <DefaultIndicator>true</DefaultIndicator>
               <Address>
                  <PostalAddress>
                     <CountryCode>DE</CountryCode>
                     <CountryName>Country Name</CountryName>
                  </PostalAddress>
                  <Telephone>
                     <Number>
                        <SubscriberID>0711/123456</SubscriberID>
                        <ExtensionID>0</ExtensionID>
                        <CountryCode>DE</CountryCode>
                        <CountryDiallingCode>+49</CountryDiallingCode>
                        <CountryName languageCode="de">Country Name</CountryName>
                     </Number>
                     <UsageDeniedIndicator>false</UsageDeniedIndicator>
                     <MobilePhoneNumberIndicator>false</MobilePhoneNumberIndicator>
                     <SMSEnabledIndicator>false</SMSEnabledIndicator>
                     <DefaultIndicator>true</DefaultIndicator>
                  </Telephone>
                  <Telephone>
                     <Number>
                        <SubscriberID>0711/999999</SubscriberID>
                        <CountryCode>DE</CountryCode>
                        <CountryDiallingCode>+49</CountryDiallingCode>
                        <CountryName languageCode="de">Country Name</CountryName>
                     </Number>
                     <UsageDeniedIndicator>false</UsageDeniedIndicator>
                     <MobilePhoneNumberIndicator>true</MobilePhoneNumberIndicator>
                     <SMSEnabledIndicator>true</SMSEnabledIndicator>
                     <DefaultIndicator>false</DefaultIndicator>
                  </Telephone>
                  <Facsimile>
                     <Number>
                        <SubscriberID>0711/999888</SubscriberID>
                        <ExtensionID>99</ExtensionID>
                        <CountryCode>DE</CountryCode>
                        <CountryDiallingCode>+49</CountryDiallingCode>
                        <CountryName languageCode="de">Country Name</CountryName>
                     </Number>
                     <UsageDeniedIndicator>false</UsageDeniedIndicator>
                     <DefaultIndicator>true</DefaultIndicator>
                  </Facsimile>
                  <EMail>
                     <URI>[email protected]</URI>
                     <UsageDeniedIndicator>false</UsageDeniedIndicator>
                     <DefaultIndicator>true</DefaultIndicator>
                  </EMail>
                  <EMail>
                     <URI>[email protected]</URI>
                     <UsageDeniedIndicator>false</UsageDeniedIndicator>
                     <DefaultIndicator>false</DefaultIndicator>
                  </EMail>
                  <Web>
                     <URI>www.xyz.com</URI>
                     <UsageDeniedIndicator>false</UsageDeniedIndicator>
                     <DefaultIndicator>true</DefaultIndicator>
                  </Web>
               </Address>
            </AddressInformation>
            <AddressInformation>
               <UUID>514a519b-39a2-4890-e100-80000a031a28</UUID>
                                    <DefaultIndicator>false</DefaultIndicator>
               <Address>
                  <PostalAddress>
                     <CountryCode>AT</CountryCode>
                     <CountryName>Österreich</CountryName>
                  </PostalAddress>
               </Address>
            </AddressInformation>
         </BusinessPartner>
      </nm:CustomerCRMByIDResponse>
   </env:Body>
</env:Envelope>') xml_data from dual)
SELECT xmlresponse.*
FROM t, XMLTable(Xmlnamespaces('http://www.w3.org/2003/05/soap-envelope' AS "env",
                                                                  'http://sap.com/xi/CRM/Global2' AS "nm",
                                                                  'urn:sap.com:proxy:DCT:/1SAI/TAS57DF0B317943DEAE3C49:702' AS "prx"
                                        'for $BusinessPartner in /env:Envelope/env:Body/nm:CustomerCRMByIDResponse/BusinessPartner                 
                    return $BusinessPartner'
                                        PASSING xml_data
                                        COLUMNS
                                        Internalid Varchar2(4000) Path 'InternalID' 
                                        ) xmlresponse;As you can see, one "BusinessPartner" can have multiple "AddressInformation"
and one "AddressInformation" can have multiple "Telephone".
Can someone suggest me how can I extract both InternalID & UUID in one query? For above example output should look as follows..
InternalID UUID
2200117598 51471396-9ae8-3cc0-e100-80000a031a28
2200117598 514a519b-39a2-4890-e100-80000a031a28Thank you very much in advance.
Regards,
Hari

Answer 1

Here is a basic example of one method to achieve what you need
SELECT xmlresponse.Internalid, xml2.uuid
  FROM t,
       XMLTable(Xmlnamespaces('http://www.w3.org/2003/05/soap-envelope' AS "env",
                              'http://sap.com/xi/CRM/Global2' AS "nm"
                '/env:Envelope/env:Body/nm:CustomerCRMByIDResponse/BusinessPartner'
                PASSING xml_data
                COLUMNS
                Internalid   Varchar2(20) Path 'InternalID',
                addrinfoxml  XMLType      PATH 'AddressInformation'
               ) xmlresponse,
       XMLTable('/AddressInformation'
                PASSING xmlresponse.addrinfoxml
                COLUMNS
                UUID         Varchar2(80) Path 'UUID'
               ) xml2;Changes:
I removed one of namespaces as you only need to include those included in an XPath statement.
I shortened your datatypes.
I went for the simple XMLTable joined to an XMLTable approach, instead of a single XMLTable using a FLWOR statement.
You can include the addrinfoxml column to your SELECT list to see the data being passed between the two if you want.
Addition:
Here's one approach for a single XMLTable.
SELECT xmlresponse.*
  FROM t,
       XMLTable(Xmlnamespaces('http://www.w3.org/2003/05/soap-envelope' AS "env",
                              'http://sap.com/xi/CRM/Global2' AS "nm"
                'for $BP in /env:Envelope/env:Body/nm:CustomerCRMByIDResponse/BusinessPartner
                  for $ai in $BP /AddressInformation
                   return <e>{$BP/InternalID}{$ai/UUID}</e>'
                PASSING xml_data
                COLUMNS
                Internalid   Varchar2(20) Path 'InternalID',
                UUID         Varchar2(80) Path 'UUID'
               ) xmlresponse;Edited by: A_Non on Mar 25, 2013 9:41 AM
Added in XQuery solution