Where does Oracle store message properties for AQ messages? We create messages with various properties, like this:

    message :=  sys.aq$_jms_message.construct(0);
                  message.set_string_property('a', v_a));
                  message.set_int_property('b', v_b);
                  message.set_int_property('c', v_c);
                  message.set_string_property('d', v_d);
    DBMS_AQ.ENQUEUE(queue_name         =&gt; SOME_QUEUE,
                    enqueue_options    =&gt; queue_options,
                    message_properties =&gt; message_properties,
                    payload            =&gt; message,
                    msgid              =&gt; message_id);


And now I'm wondering where the message properties are actually stored.
General process to create an AQ


create an Object type
create a Queue Table
create the Queue


The queue message (1) is stored in a queue table (2).  You can view a list of queue tables by looking at ALL_QUEUE_TABLES.