Oracle 高级队列 - 队列传播

Question

编辑:这似乎是将两个队列放在同一个模式中的事情。

我正在尝试使用队列传播进行实验，但在目标队列中没有看到记录。但这很容易是因为我没有准备好所有的部分。

有没有人可以发布测试用例？我将包括我在下面尝试的内容。我发现文档中的故障排除有点轻，传播是一个黑匣子，很难知道为什么它不动。

这是我所拥有的；没有笑。

CREATE OR REPLACE TYPE test_payload AS OBJECT(
   test_id   NUMBER,
   test_dt   DATE);


DECLARE
   subscriber   SYS.aq$_agent;
BEGIN
--- Create Originating Queue and start it

   DBMS_AQADM.create_queue_table( queue_table => 'Test_MQT', queue_payload_type => 'Test_Payload',
                                  multiple_consumers => TRUE ); --- multiple subscriber 

   DBMS_AQADM.create_queue( 'Test_Q', 'Test_MQT' );
   DBMS_AQADM.start_queue( queue_name => 'Test_Q' );

--- Create Destination Queue and start it

   DBMS_AQADM.create_queue_table( queue_table => 'Dest_MQT', queue_payload_type => 'Test_Payload',
                                  multiple_consumers => TRUE );
   DBMS_AQADM.create_queue( 'Dest_Q', 'Dest_MQT' );
   DBMS_AQADM.start_queue( queue_name => 'Dest_Q' );

--- Add Subscriber and schedule propagation

   subscriber := SYS.aq$_agent( 'test_local_sub', 'Dest_Q', NULL );
   DBMS_AQADM.add_subscriber( queue_name => 'Test_Q', subscriber => subscriber );
   DBMS_AQADM.schedule_propagation( queue_name => 'Test_Q', destination_queue => 'Dest_Q' );
END;

DECLARE
   enqueue_options      DBMS_AQ.enqueue_options_t;
   message_properties   DBMS_AQ.message_properties_t;
   message_handle       RAW( 16 );
   MESSAGE              test_payload;
BEGIN
   MESSAGE := test_payload( 2, SYSDATE );
   DBMS_AQ.enqueue( queue_name => 'Test_Q', enqueue_options => enqueue_options,
                    message_properties => message_properties, payload => MESSAGE, msgid => message_handle );
   COMMIT;
END;

DECLARE
   dequeue_options      DBMS_AQ.dequeue_options_t;
   message_properties   DBMS_AQ.message_properties_t;
   message_handle       RAW( 16 );
   MESSAGE              test_payload;
BEGIN
   dequeue_options.navigation := DBMS_AQ.first_message;
   DBMS_AQ.dequeue( queue_name => 'Dest_Q', dequeue_options => dequeue_options,
                    message_properties => message_properties, payload => MESSAGE, msgid => message_handle );
   DBMS_OUTPUT.put_line( 'Test_ID: ' || MESSAGE.test_id );
   DBMS_OUTPUT.put_line( 'Test_Date: ' || MESSAGE.test_dt );
   COMMIT;
END;

Answer 1

也许您需要启用它？

DBMS_AQADM.ENABLE_PROPAGATION_SCHEDULE(queue_name => 'Test_Q');