Help Needed: Issue in ora:parseEscapedXML function in BPEL

Hello All-
We are facing issue while using the XSLT Function ora:parseEscapedXML in SOA 11g. Following is our scenario:
1.     We are using DB Adapter to poll for records in the database. One of the fields in the polled records is a CLOB type which contains a XML message.
2.     Our requirement is to get the XML Message as a String in the BPEL Process, parse it to XML and then assign to Complex Type XML Element.
3.     We are using ora:parseEscapedXML function to achieve the same. However we are getting error "Empty Variable/Expression result. The XPATH variable or expression is empty"
If anybody has faced similar issues, kindly provide us the resolution/pointers on how to resolve it.
Thanks in advance. Please let me know if you need any additional information from my side.
Regards,
Dibya

Reading Xml file from clob column in the staging table
CLOB has to be treated as string in xsd/xml in BPEL. Hope you have read the following document http://download-east.oracle.com/docs/cd/B31017_01/integrate.1013/b28994/adptr_db.htm#CHDIEBJD. Still valid for 11g.

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How to use ora:parseEscapedXML() Function with String Content

Hello,
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<CustNum>AROUT</CustNum>
<CustLName>Hardy</CustLName>
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<CustCity>London</CustCity>
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<CustPostalCode>WA1 1DP</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
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<CustNum>BSBEV</CustNum>
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<CustFname>Victoria</CustFname>
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<CustRegion></CustRegion>
<CustPostalCode>EC2 5NT</CustPostalCode>
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</customer>
The copy rule for assigning CustNum to accountnumber that fails:
<copy>
<from expression="ora:parseEscapedXML(bpws:getVariableData('DataService_OutputVariable','invokeSpecMsgReturn','/recordset/customer/CustNum'))"/>
<to variable="outputVariable" part="payload" query="/client:QueryResult/client:customer/client:accountNumber"/>
</copy>
Any help would be greatly appreciated.
Thanks,
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Hello,
I am attempting to provide more information in order to hopefully get some better guidance here.
1) The BPEL process I built receives input from a client that is one of city name or region name or postal code or country name and returns a list of customer records with their AccountNumber, LastName, FirstName, Email, Address, City, Region, PostalCode and Country. The BPEL flow invokes a packaged integration Web Service that retuns the records in a string whose content is XML (see XML fragment below).
2) The string content returned is vaiable based on the input (i.e. city name="London")
Two customer records from XML literal fragment copied from string result:
<?xml version="1.0" encoding="ISO-8859-1"?>
<recordset>
<customer>
<CustNum>AROUT</CustNum>
<CustLName>Hardy</CustLName>
<CustFname>Thomas</CustFname>
<CustEmail>[email protected]</CustEmail>
<CustAddress>120 Hanover Sq.</CustAddress>
<CustCity>London</CustCity>
<CustRegion></CustRegion>
<CustPostalCode>WA1 1DP</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
<customer>
<CustNum>BSBEV</CustNum>
<CustLName>Ashworth</CustLName>
<CustFname>Victoria</CustFname>
<CustEmail>Victoria.Ashworth@B's.com</CustEmail>
<CustAddress>Fauntleroy Circus</CustAddress>
<CustCity>London</CustCity>
<CustRegion></CustRegion>
<CustPostalCode>EC2 5NT</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
I want to <assign> each record from the packaged integration service result (the string whose content is XML) to a complexType variable defined within the BPEL Process WSDL (see example below).
XML fragment from BPEL WSDL:
<element name="QueryResult" type="client:recordType"/>>
<complexType name="recordType">
<sequence>
<element name="customer" type="client:customerType" maxOccurs="unbounded"/>
</sequence>
</complexType>
<complexType name="customerType">
<sequence>
<element name="accountNumber" type="string"/>
<element name="lastName" type="string"/>
<element name="firstName" type="string"/>
<element name="email" type="string"/>
<element name="address" type="string"/>
<element name="city" type="string"/>
<element name="region" type="string"/>
<element name="postalcode" type="string"/>
<element name="country" type="string"/>
</sequence>
</complexType>
I have read through the tutorial and reviwed the XPath Funtion example in the reference (C:\OraBPELPM_1\integration\bpelpm\orabpel\samples\references\XPathFunction), but I am stsill very unclear as to how to handle this. I would appreciate any and all help.
Thanks,
Sean

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How to pass XML inside ora:parseEscapedXML ?? Like
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assign the xml content to the string variable like ex:ErrorData then call the ora:parseEscapedXML function like ora:parseEscapedXML(bpws:getVariableData('ErrorData')) to another string variable.
ex with out parseEscapedXML ..the xml looks like this
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<ErrorDataStr>
<ErrorDataStr>
<ns1:item>
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<ns1:BusinessProcessName>a</ns1:BusinessProcessName>
<ns1:BusinessProcessInstanceId>a</ns1:BusinessProcessInstanceId>
<ns1:BusinessProcessStep>a</ns1:BusinessProcessStep>
<ns1:ImplementationCode>ss</ns1:ImplementationCode>
<ns1:StatusCode>s</ns1:StatusCode>
<ns1:ErrorCode>s</ns1:ErrorCode>
<ns1:ErrorDescription>s</ns1:ErrorDescription>
<ns1:ErrorType>s</ns1:ErrorType>
<ns1:ErrorDateTime>3-oct-2011</ns1:ErrorDateTime>
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Message was edited by:
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Help Needed: Issue in ora:parseEscapedXML function in BPEL

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