Ora-31001 invalid reference when enqueuing xmltype payload w/ dtd file ref

Question

We're using AQ to store xmltype payloads in an Oracle 10gR2 DB.
We're able to enqueue normal XML payloads without issue, but recently we've attempted to enqueue XML with a DOCTYPE tag with reference to a dtd file. This results in an ora-31001 error stating the file reference for the dtd is invalid.
We've tried moving the dtd around, but are unsure what the oracle dbms thinks is the base dir for the file reference.
I've seen some documentation for xmldb that states the dtd must be located in reference to the xml doc, but as we are enqueueing an xmltype datatype in AQ I'm not sure how this can be applied. I've also seen documentation about using a dbms package to set the base url, but am also not sure how to apply it to this situation.
Anyone able to tell me where I can drop this dtd so that Oracle can reference it when parsing the xml during an enqueue?
Thanks!
Tony

Answer 1

Sorry didn't receive email notification of your response, or I would have replied sooner. Seems like that is happening on the forums sometimes.
Here is a pl/sql block for enqueueing xml into a queue table with an xmltype payload:
BEGIN
declare
enqOpts dbms_aq.enqueue_options_t;
msgProps dbms_aq.message_properties_t;
enqMsgid raw(16);
begin
dbms_aq.enqueue(
queue_name => 'YOUR_QUEUE_NAME',
enqueue_options => enqOpts,
message_properties => msgProps,
payload => XMLType (
'<INSERT XML HERE>'),
msgid => enqMsgId);
commit;
END ;
END;
/