XQuery with recuesive function and instance of operation gives problem

Question

Hi,
<< Using Oracle 11g .06. release >>
I have an Xquery that has recursive functions and "instance of" operation.
I facing the following problem
"error raised during evaluation: oracle.xquery.XQException: XPTY0004: It is a type error if, during the static analysis phase, an expression is found to have a static type that is not appropriate for the context in which the expression occurs, or during the dynamic evaluation phase, the dynamic type of a value does not match a required type as specified by the matching rules in 2.5.4 SequenceType Matching.
Detail: empty sequence encountered where a sequence of length one is expected
The same xQuery works on Berkely DB, Altova XML and Oxygen. I could able to figure out the problem in oracle, where i need an help from you people.
The below is the XQuery Function
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
SELECT XMLQuery('xquery version "1.0";
declare default element namespace "WiMax_CAPC_XML";(: :)
declare namespace HHP="HHP";(: :)
declare namespace AtomicXQuery="AtomicXQuery";(: :)
declare function AtomicXQuery:filter-modifier($element as element(), $attribute-name as xs:string*) {
element {node-name($element)}
for $child in $element/node()
return if ($child instance of element())
then (("deepa instance"),$child,"45",name($child),$attribute-name,
if($child/node() instance of element())
then ("it is an instance of element")
else($child),
AtomicXQuery:filter-modifier($child, $attribute-name))
else $child
let $i:= ora:view("NECB")/node()/child::*[2]/HHP:HHP/HHP:hapNe/HHP:maxCageCount
let $m:=element HHP:deepa {element HHP:deepa1 {"deepa1"}} return AtomicXQuery:filter-modifier($m,"modifier")'
RETURNING CONTENT) AS RESULT
FROM DUAL;
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The XML data is available in XMLType table NECB.
The XMLData is as follows
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
<?xml version="1.0" encoding="UTF-8"?>
<ConfigDataFile xmlns="WiMax_CAPC_XML" xmlns:HHP="HHP" xmlns:SWM="SWM" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<fileHeader cfgMinorVersion="0" cfgSavedMinorVersion="0" cfgVersion="0" fileFormatVersion="CAPC_I1" fileName="NECB.xml" fileType="necb" senderName="CNEOMI" swVersion="D00.00.01.05" vendorName="Motorola"/>
<configData dnPrefix="String">
<HHP:HHP>
<HHP:hapNe>
<HHP:maxCageCount>3</HHP:maxCageCount>
<HHP:minLogLevel>1</HHP:minLogLevel>
</HHP:hapNe>
<HHP:hapCageTable>
<HHP:hapCageEntry cageId="1">
<HHP:numOfModems>1</HHP:numOfModems>
<HHP:numOfBackupModems>1</HHP:numOfBackupModems>
<HHP:hapCagemaxModemCount>1</HHP:hapCagemaxModemCount>
<HHP:minModemLogLevel>1</HHP:minModemLogLevel>
<HHP:hapModemTable>
<HHP:hapModemEntry cageId="1" modemId="1">
<HHP:maxServiceTypeCount>1</HHP:maxServiceTypeCount>
<HHP:hapModemLogLevel>1</HHP:hapModemLogLevel>
<HHP:maxBlackboxCount>1</HHP:maxBlackboxCount>
<HHP:minBlackboxLogLevel>1</HHP:minBlackboxLogLevel>
<HHP:hapBlackboxTable>
<HHP:hapBlackboxEntry cageId="1" modemId="1" blackboxId="1">
<HHP:hapBlackboxLogLevel>1</HHP:hapBlackboxLogLevel>
</HHP:hapBlackboxEntry>
</HHP:hapBlackboxTable>
</HHP:hapModemEntry>
</HHP:hapModemTable>
</HHP:hapCageEntry>
</HHP:hapCageTable>
<HHP:serviceTypeTable>
<HHP:serviceTypeEntry serviceTypeId="1">
<HHP:priority>1</HHP:priority>
<HHP:serviceTypemaxModemCount>1</HHP:serviceTypemaxModemCount>
</HHP:serviceTypeEntry>
</HHP:serviceTypeTable>
<HHP:serviceMappingTable>
<HHP:serviceMappingEntry cageId="1" modemId="1" serviceTypeId="1">
</HHP:serviceMappingEntry>
</HHP:serviceMappingTable>
</HHP:HHP>
     <SWM:SWM>
<SWM:wmanIfBsPagingGroupTable>
<SWM:wmanIfBsPagingGroupEntry ifIndex="1" wmanIfBsPagingGroupIndex="1">
<SWM:wmanIfBsPagingGroupId>1</SWM:wmanIfBsPagingGroupId>
<SWM:wmanIfBsPagingControllerId>9</SWM:wmanIfBsPagingControllerId>
<SWM:wmanIfBsPagingCycle>100</SWM:wmanIfBsPagingCycle>
<SWM:wmanIfBsPagingOffset>1</SWM:wmanIfBsPagingOffset>
<SWM:wmanIfBsPagingRetryCount>3</SWM:wmanIfBsPagingRetryCount>
<SWM:wmanIfBsPagingBcastRetryCount>3</SWM:wmanIfBsPagingBcastRetryCount>
<SWM:wmanIfBsPagingControllerAddress>aabbccddeeffaabbccddeeffaabbccddeeffaabbccddeeffaabbccddeeffaabb</SWM:wmanIfBsPagingControllerAddress>
<SWM:wmanIfBsPagingControllerAddressType>1</SWM:wmanIfBsPagingControllerAddressType>
<SWM:wmanIfBsPagingControllerAsnMmId>aabbccddeeff</SWM:wmanIfBsPagingControllerAsnMmId>
</SWM:wmanIfBsPagingGroupEntry>
</SWM:wmanIfBsPagingGroupTable>
<SWM:wmanIfAsnMmTable>
<SWM:wmanIfAsnMmEntry ifIndex="1">
<SWM:wmanIfAsnMmId>AAffFFAAAAFF</SWM:wmanIfAsnMmId>
<SWM:wmanIfAsnMmId/>
</SWM:wmanIfAsnMmEntry>
</SWM:wmanIfAsnMmTable>
<SWM:wmanIfNeighborAsnMmTable>
<SWM:wmanIfNeighborAsnMmEntry ifIndex="1" wmanIfNbrAsnMmId="AAffFFAAAAFFFFFF">
<SWM:wmanIfNbrAsnMmAddress>AAffFFAAAAFFFFFF</SWM:wmanIfNbrAsnMmAddress>
<SWM:wmanIfNbrAsnMmAddressType>1</SWM:wmanIfNbrAsnMmAddressType>
<SWM:wmanIfNbrAsnMmControlSecurityProtocol>1</SWM:wmanIfNbrAsnMmControlSecurityProtocol>
</SWM:wmanIfNeighborAsnMmEntry>
</SWM:wmanIfNeighborAsnMmTable>
</SWM:SWM>
</configData>
<fileFooter dateTime="2007-11-07T09:30:47.0Z" update="2007-11-07T09:30:47.0Z"/>
</ConfigDataFile>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The expected output XML is as follows
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
<HHP:deepa xmlns="WiMax_CAPC_XML" xmlns:HHP="HHP">deepa instance<HHP:deepa1>deepa1</HHP:deepa1>45 HHP:deepa1 modifier<HHP:deepa1>deepa1</HHP:deepa1>
     <HHP:deepa1>deepa1</HHP:deepa1>
</HHP:deepa>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Thanks in advance!

Answer 1

Ashwin,
Please try it with 11.1.0.7 instead and let us know if it works.
Regards,
Geoff