Advanced queuing : dequeing from remote database 2005-02-18 - By Post, Ethan
=20
-- --Original Message-- --
From: oracle-l-bounce@(protected)
[mailto:oracle-l-bounce@(protected)] On Behalf Of John Dunn
Sent: Friday, February 18, 2005 6:49 AM
To: Oracle-L@(protected)
Cc: rjamya@(protected); ntilbury@(protected)
Subject: RE: Advanced queuing : dequeing from remote database
Ok, I'm getting further now. I got round the identifier 'DBMS_AQADM'
must be
declared error by explicitly granting execute on the package, rather
than
thru the role.
Now I get the error :
ORA-04052 (See ORA-04052.ora-code.com): error occurred when looking up remote object
OPD4678.DBMS_AQADM@(protected)
ORA-00604 (See ORA-00604.ora-code.com): error occurred at recursive SQL level 4
ORA-01005 (See ORA-01005.ora-code.com): null password given; logon denied
ORA-06512 (See ORA-06512.ora-code.com): at "SYS.DBMS_AQADM_SYS", line 977
My database link is a private one. Is this the problem? Do I need to use
a
public database link with AQ, with a connect string?
-- --Original Message-- --
From: John Dunn [mailto:jdunn@(protected)]
Sent: 17 February 2005 16:53
To: 'Oracle-L@(protected)'
Cc: 'rjamya@(protected)'; 'ntilbury@(protected)'
Subject: RE: Advanced queuing : dequeing from remote database
I have overcome the connection description for remote database not found
error but now get the following error : Looks like a privilage thing,
but I
do not understand this. Since I am able to run dbms_aqadm commands under
my
user on both databases surely the privileges are OK?
SQL> select qname,failures,last_error_msg from dba_queue_schedules;
QNAME FAILURES
-- ---- ---- ---- ---- ---- -- -- ---- --
LAST_ERROR_MSG
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
----
----
NEW_JOB_MESSAGE_QUEUE 5
ORA-06550 (See ORA-06550.ora-code.com): line 1, column 7:
PLS-00201: identifier 'DBMS_AQADM' must be declared
ORA-06550 (See ORA-06550.ora-code.com): line 1, column 7:
PL/SQL: Statement ignored
-- --Original Message-- --
From: John Dunn [mailto:jdunn@(protected)]
Sent: 17 February 2005 13:33
To: 'Oracle-L@(protected)'
Cc: 'rjamya@(protected)'; 'ntilbury@(protected)'
Subject: RE: Advanced queuing : dequeing from remote database
I have identified the error as :
connection description for remote database not found
The address being used in add_subscriber is
OPD4678.NEW_JOB_MESSAGE_QUEUE@(protected)
where VAN9 is my database link
but the entry on the queue seems to trying to use
OPD4678.NEW_JOB_MESSAGE_QUEUE@(protected)
Is this the problem?
Why is it trying to use VAN9.US.ORACLE.COM ???
The entry in tnsnames.ora is simply named VAN9.
From: John Dunn [mailto:jdunn@(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 (See ORA-06550.ora-code.com): 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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