Advanced Queueing and Propagation

Question

Hi all,
I am trying to propagate messages from one queue to another in the same database.
For this I am using DBMS_AQADM. The code is as under.
CREATE OR REPLACE TYPE event_msg_type_surya AS OBJECT (
name VARCHAR2(10),
current_status NUMBER(5),
next_status NUMBER(5)
begin
DBMS_AQADM.create_queue_table (
queue_table => 'system.queue_tab_consumer',
queue_payload_type => 'system.event_msg_type_surya');
end;
begin
DBMS_AQADM.create_queue (
queue_name => 'system.queue_consumer',
queue_table => 'system.queue_tab_consumer');
end;
begin
DBMS_AQADM.start_queue (
queue_name => 'system.queue_consumer',
enqueue => TRUE);
end;
begin
DBMS_AQADM.create_queue_table (
queue_table => 'system.queue_tab_producer',
queue_payload_type => 'system.event_msg_type_surya',
multiple_consumers => TRUE);
end;
begin
DBMS_AQADM.create_queue (
queue_name => 'system.queue_producer',
queue_table => 'system.queue_tab_producer');
end;
begin
DBMS_AQADM.start_queue (
queue_name => 'system.queue_producer',
enqueue => TRUE);
end;
BEGIN
dbms_aqadm.add_subscriber (
queue_name => 'system.queue_producer',
subscriber => sys.aq$_agent('SYSTEM','system.queue_consumer',null)
END;
BEGIN
dbms_aqadm.schedule_propagation(
queue_name => 'system.queue_producer',
latency => 0
END;
begin
DBMS_AQADM.ALTER_PROPAGATION_SCHEDULE(
queue_name => 'system.queue_producer',
duration => '2000',
next_time => 'SYSDATE + 1/1440',
latency => '32');
end;
As per the expectation if producer_queue is populated the messages must get propagated to consumer_queue.But this is not getting done even after waiting long hours.
Can anyone throw any light on this.
Any help will be greatly appreciated.
Thanks in advance.

Answer 1

I am also looking for some examples of using SQL/PLSQL w/Advanced Queueing. We currently have the following scenario: One server has non-relational tables; another server has relational tables which house the same data in a relational format. We are looking for a way to migrate the non-relational data to the relational tables and keep the data updated when it changes in the non-relational tables.
We had considered using materialized views, but, this was ruled out because the non-relational tables are created and dropped on a daily basis.
My email: [email protected]
Thanks for any input you may have!