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TNS:could not resolve the connect identifier specified
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TNS:unable to connect to destination
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maximum number of processes exceeded
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TNS:packet writer failure
see ORA-12699
missing right parenthesis
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quoted string not properly terminated

RE: Advanced queuing : dequeing from remote database

Nick Tilbury @ Northampton

2005-02-17

Replies:
I would suggest you have the enqueue populate to the remote database queue =
and deal with it locally.

Nick

-----Original Message-----
From: oracle-l-bounce@(protected)
[mailto:oracle-l-bounce@(protected)
Sent: 17 February 2005 10:46
To: Oracle-L@(protected)
Subject: Advanced queuing : dequeing from remote database


I am experimenting with advanced queueing in Oracle 9i and am able to
enqueue and dequeue messages within the same database.

However I would like to dequeue messages on a remote database via a database
link.

I am confused as to what I need to set up on the remote server in order to
dequeue the message.

I have set up the database link that points back to the enqueueing database,
The database link works OK.

I am then trying to dequeue the message on the remote database using the
following code(which is the same I use when doing this all on the same
database except for the references to the database link). I get the error :

  message         opd4678.new_job_message@(protected);
                     *
ERROR at line 6:
ORA-06550: line 6, column 34:
PLS-00331: illegal reference to OPD4678.NEW_JOB_MESSAGE@(protected)

Any ideas what I have done wrong?

John


----------------------------------------------------------------------------
----------


  set serveroutput on

declare

  dequeue_options    dbms_aq.dequeue_options_t;
  message_properties  dbms_aq.message_properties_t;
  message_handle     RAW(16);
  message         opd4678.new_job_message@(protected);
  --message         opd4678.new_job_message;

BEGIN

  dequeue_options.CONSUMER_NAME       :=3D NULL;
  dequeue_options.DEQUEUE_MODE        :=3D DBMS_AQ.REMOVE;
  dequeue_options.NAVIGATION         :=3D DBMS_AQ.NEXT_MESSAGE;
  dequeue_options.VISIBILITY         :=3D DBMS_AQ.IMMEDIATE;
  dequeue_options.WAIT             :=3D DBMS_AQ.FOREVER;
  dequeue_options.MSGID             :=3D null;
  dequeue_options.CORRELATION         :=3D 'TEST MESSAGE';

  DBMS_AQ.DEQUEUE (
    queue_name      =3D> 'opd4678.new_job_message_queue@(protected)',
    dequeue_options   =3D> dequeue_options,
    message_properties =3D> message_properties,
    payload        =3D> message,
    msgid         =3D> message_handle
  );



  dbms_output.put_line('+-----------------+');
  dbms_output.put_line('| New Job |');
  dbms_output.put_line('+-----------------+');
  dbms_output.put_line('- Message ID  :=3D ' || message.message_id);
  dbms_output.put_line('- Filename     :=3D ' || message.host_file_name=
);


  COMMIT;

  -- -------------------------------------------------------

END;
/



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