How to parse SOAP XML output and load to oracle9i table

Question

Below is the SOAP output response and I need to load the data into oracle 9i database tables.
I am able to parse regular XML without namespaces but unable to parse the data with namespaces.
I would need help in parsing this XML.
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
<o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<u:Timestamp u:Id="_0">
<u:Created>2011-11-04T23:16:08.437Z</u:Created>
<u:Expires>2011-11-04T23:21:08.437Z</u:Expires>
</u:Timestamp>
</o:Security>
</s:Header>
<s:Body>
<AssetGetListResponse xmlns="http://dev.services.xerox.com">
<AssetGetListResult xmlns:a="http://schemas.datacontract.org/2004/07/Xerox.MPS" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<a:AssetFeed>
<a:AccountID>de5862bf-f223-e011-bd3b-0024e861b15c</a:AccountID>
<a:AccountName>MPS-API Sandbox</a:AccountName>
<a:AssetID>ecf1545a-f1e9-e011-8a8a-0024e861b15c</a:AssetID>
<a:AssetNumber>57119B28</a:AssetNumber>
<a:AssetTag3rdParty i:nil="true"/>
<a:ChargebackCodeID>1a5962bf-f223-e011-bd3b-0024e861b15c</a:ChargebackCodeID>
<a:ContractNumber i:nil="true"/>
<a:ContractTypeDescription i:nil="true"/>
<a:ControlID i:nil="true"/>
<a:Group i:nil="true"/>
<a:GroupID i:nil="true"/>
<a:InScope>false</a:InScope>
<a:MACAddress>0000AA713E97</a:MACAddress>
<a:Manufacturer>Xerox</a:Manufacturer>
<a:Model>WorkCentre Pro 265</a:Model>
<a:ModifiedDate>2011-11-02T16:52:12.947Z</a:ModifiedDate>
<a:PricePlanID>c25a62bf-f223-e011-bd3b-0024e861b15c</a:PricePlanID>
<a:SerialNumber>UTU101993N</a:SerialNumber>
<a:VersionNumber>634558495329470000</a:VersionNumber>
</a:AssetFeed>
<a:AssetFeed>
<a:AccountID>de5862bf-f223-e011-bd3b-0024e861b15c</a:AccountID>
<a:AccountName>MPS-API Sandbox</a:AccountName>
<a:AssetID>b33b5160-f1e9-e011-8a8a-0024e861b15c</a:AssetID>
<a:AssetNumber>7EE42ADC</a:AssetNumber>
<a:AssetTag3rdParty i:nil="true"/>
<a:ChargebackCodeID>1a5962bf-f223-e011-bd3b-0024e861b15c</a:ChargebackCodeID>
<a:ContractNumber i:nil="true"/>
<a:ContractTypeDescription i:nil="true"/>
<a:ControlID i:nil="true"/>
<a:Group i:nil="true"/>
<a:GroupID i:nil="true"/>
<a:InScope>false</a:InScope>
<a:MACAddress>0800379B4C2A</a:MACAddress>
<a:Manufacturer>Xerox</a:Manufacturer>
<a:Model>WorkCentre 7428</a:Model>
<a:ModifiedDate>2011-11-02T16:52:14.383Z</a:ModifiedDate>
<a:PricePlanID>c25a62bf-f223-e011-bd3b-0024e861b15c</a:PricePlanID>
<a:SerialNumber>PBB015012</a:SerialNumber>
<a:VersionNumber>634558495343830000</a:VersionNumber>
</a:AssetFeed>
</AssetGetListResult>
</AssetGetListResponse>
</s:Body>
</s:Envelope>
This is what I tried.
declare
lp_parser xmlParser.Parser;
lx_xmldoc xmlDom.DOMDocument;
ln_doc_node xmlDom.DOMNode;
lnl_product xmlDom.DOMNodeList;
lnl_meter xmlDom.DOMNodeList;
ln_product xmlDom.DOMNode;
ln_meter xmlDom.DOMNode;
li_product_cnt NUMBER;
li_product_max NUMBER;
li_meter_cnt NUMBER;
li_meter_max NUMBER;
lnl_asset_meter_nodes xmldom.DOMNodeList;
ln_asset_meter_node xmldom.DOMNode;
ls_batch_number VARCHAR2(30);
ldt_proc_dt DATE;
ls_batch_item VARCHAR2(30);
ls_place_id place.place_id%TYPE;
ls_product_id product.product_id%TYPE := ' ';
ls_contract_id contract.contract_id%TYPE;
li_contract_version contract.contract_version%TYPE;
li_contract_sequence contr_product.sequence%TYPE;
ls_meter_id meter_log.meter_id%TYPE;
ls_read_type meter_log.read_type%TYPE;
ldt_reading_dt meter_log.reading_dt%TYPE;
li_meter_value meter_log.meter_value%TYPE;
li_adjust_copies meter_log.meter_value%TYPE;
ls_meter_type VARCHAR2(20);
ls_serial_id product.serial_id%TYPE;
ls_meter_read_type VARCHAR2(50);
invalid_parsing EXCEPTION;
PRAGMA EXCEPTION_INIT(invalid_parsing, -20100);
BEGIN
FOR meter_xml_rec IN (SELECT SOAP_RESPONSE
FROM temp_table
WHERE call_id=2) LOOP
lp_parser := xmlparser.newParser;
xmlparser.parseClob(lp_parser, meter_xml_rec.SOAP_RESPONSE);
lx_xmldoc := xmlparser.getDocument(lp_parser);
xmlparser.freeParser(lp_parser);
ln_doc_node := xmlDom.makeNode(lx_xmldoc);
ls_batch_number := xslProcessor.valueOf(ln_doc_node, 'AssetGetListResponse/AssetGetListResult/AssetFeed/AccountID');
lnl_product := xslprocessor.selectNodes(ln_doc_node, 'AssetGetListResponse/AssetGetListResult/a:AssetFeed');
li_product_max := xmlDom.getLength(lnl_product)-1;
FOR li_product_cnt IN 0..li_product_max LOOP
ln_product := xmlDom.item(lnl_product, li_product_cnt);
ls_batch_item := xslProcessor.valueOf(ln_product, 'AccountName');
END LOOP;
END LOOP;
END;
OUTPUT:
=========================================
3:32:41 PM *
**3:32:41 PM ORA-20100: Error occurred while processing: Namespace prefix 'a' used but not declared.**
3:32:41 PM ORA-06512: at "SYS.XSLPROCESSOR", line 22
3:32:41 PM ORA-06512: at "SYS.XSLPROCESSOR", line 502
3:32:41 PM ORA-06512: at line 50
3:32:41 PM *** Script stopped due to error ***
3:32:41 PM End SQL Editor Execution

Answer 1

Hi,
Something like this :
lnl_product := xslprocessor.selectNodes(
                 ln_doc_node
               , '/s:Envelope/s:Body/AssetGetListResponse/AssetGetListResult/a:AssetFeed'
               , 'xmlns:s="http://schemas.xmlsoap.org/soap/envelope/", xmlns="http://dev.services.xerox.com", xmlns:a="http://schemas.datacontract.org/2004/07/Xerox.MPS"'
li_product_max := xmlDom.getLength(lnl_product)-1;
FOR li_product_cnt IN 0..li_product_max LOOP
  ln_product := xmlDom.item(lnl_product, li_product_cnt);
  ls_batch_item := xslProcessor.valueOf(ln_product, 'a:AccountName', 'xmlns:a="http://schemas.datacontract.org/2004/07/Xerox.MPS"');
END LOOP;
...Or, using a single query :
SQL> SELECT extractValue(value(x), '/AssetFeed/AccountID', 'xmlns="http://schemas.datacontract.org/2004/07/Xerox.MPS"') as AccountID
  2       , extractValue(value(x), '/AssetFeed/AccountName', 'xmlns="http://schemas.datacontract.org/2004/07/Xerox.MPS"') as AccountName
  3       , extractValue(value(x), '/AssetFeed/AssetID', 'xmlns="http://schemas.datacontract.org/2004/07/Xerox.MPS"') as AssetID
  4       , extractValue(value(x), '/AssetFeed/AssetNumber', 'xmlns="http://schemas.datacontract.org/2004/07/Xerox.MPS"') as AssetNumber
  5       , extractValue(value(x), '/AssetFeed/SerialNumber', 'xmlns="http://schemas.datacontract.org/2004/07/Xerox.MPS"') as SerialNumber
  6  FROM temp_table t
  7     , TABLE(
  8         XMLSequence(
  9           EXTRACT(
10             XMLType(t.soap_response)
11           , '/s:Envelope/s:Body/AssetGetListResponse/AssetGetListResult/a:AssetFeed'
12           , 'xmlns:s="http://schemas.xmlsoap.org/soap/envelope/", xmlns="http://dev.services.xerox.com", xmlns:a="http://schemas.datacontract.org/2004/07/Xerox.MPS"'
13           )
14         )
15       ) x
16  WHERE t.call_id = 2
17  ;
ACCOUNTID                                      ACCOUNTNAME           ASSETID                                   ASSETNUMBER    SERIALNUMBER
de5862bf-f223-e011-bd3b-0024e861b15c           MPS-API Sandbox       ecf1545a-f1e9-e011-8a8a-0024e861b15c      57119B28       UTU101993N
de5862bf-f223-e011-bd3b-0024e861b15c           MPS-API Sandbox       b33b5160-f1e9-e011-8a8a-0024e861b15c      7EE42ADC       PBB015012