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Advanced Queuing - Oracle

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General Features of <strong>Advanced</strong> <strong>Queuing</strong><br />

EXECUTE dbms_aqadm.create_queue_table(\<br />

queue_table => ’OE_orders_mqtab’,\<br />

comment => ’Order Entry Multi Consumer Orders queue table’,\<br />

multiple_consumers => TRUE,\<br />

queue_payload_type => ’BOLADM.order_typ’,\<br />

compatible => ’8.1’,\<br />

primary_instance => 2,\<br />

secondary_instance => 1);<br />

EXECUTE dbms_aqadm.create_queue ( \<br />

queue_name => ’OE_neworders_que’,\<br />

queue_table => ’OE_orders_sqtab’);<br />

EXECUTE dbms_aqadm.create_queue ( \<br />

queue_name => ’OE_bookedorders_que’,\<br />

queue_table => ’OE_orders_mqtab’);<br />

/* Check instance affinity of OE queue tables from AQ administrative view: */<br />

SELECT queue_table, primary_instance, secondary_instance, owner_instance<br />

FROM user_queue_tables;<br />

/* Alter instance affinity of OE queue tables: */<br />

EXECUTE dbms_aqadm.alter_queue_table( \<br />

queue_table => ’OE.OE_orders_sqtab’,\<br />

primary_instance => 2,\<br />

secondary_instance => 1);<br />

EXECUTE dbms_aqadm.alter_queue_table( \<br />

queue_table => ’OE.OE_orders_mqtab’, \<br />

primary_instance => 1,\<br />

secondary_instance => 2);<br />

/* Check instance affinity of OE queue tables from AQ administrative view: */<br />

SELECT queue_table, primary_instance, secondary_instance, owner_instance<br />

FROM user_queue_tables;<br />

Visual Basic (OO4O): Example Code<br />

This feature currently not supported.<br />

Java (JDBC): Example Code<br />

public static void createQueueTablesAndQueues(Connection db_conn)<br />

{<br />

AQSession aq_sess;<br />

AQQueueTableProperty sqt_prop;<br />

8-32 <strong>Oracle</strong>9i Application Developer’s Guide - <strong>Advanced</strong> <strong>Queuing</strong>

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