Advanced Queuing - Oracle

Altering a Subscriber
PL/SQL (DBMS_AQADM): Altering Subscriber
Note: You may need to set up the following data structures for
certain examples to work:
EXECUTE DBMS_AQADM.CREATE_QUEUE_TABLE (
queue_table => ’aq.multi_qtab’,
multiple_consumers => TRUE,
queue_payload_type => ’aq.message_typ’,
compatible => ’8.1.5’);
EXECUTE DBMS_AQADM.CREATE_QUEUE (
queue_name => ’multi_queue’,
queue_table => ’aq.multi_qtab’);
/* Add a subscriber with a rule: */
DECLARE
subscriber sys.aq$_agent;
BEGIN
subscriber := sys.aq$_agent(’SUBSCRIBER1’, ’aq2.msg_queue2@london’, null);
DBMS_AQADM.ADD_SUBSCRIBER(
queue_name => ’aq.msg_queue’,
subscriber => subscriber,
rule => ’priority < 2’);
END;
/* Change rule for subscriber: */
DECLARE
subscriber sys.aq$_agent;
BEGIN
subscriber := sys.aq$_agent(’SUBSCRIBER1’, ’aq2.msg_queue2@london’, null);
DBMS_AQADM.ALTER_SUBSCRIBER(
queue_name => ’aq.msg_queue’,
subscriber => subscriber,
rule => ’priority = 1’);
END;
Add a Subscriber with a Transformation
/* Add a subscriber with transformation */
EXECUTE DBMS_AQADM.ADD_SUBSCRIBER
(’aq.msg_queue’,
aq$_agent(’subscriber1’,
’aq2.msg_queue2@london’,
null),
9-66 Oracle9i Application Developer’s Guide - Advanced Queuing