Advanced Queuing - Oracle

length is a variable of type NUMBER. */
Propagation Features
/* Complete the order data and perform the enqueue using the order_enq()
procedure: */
dbms_aq.enqueue('OE.OE_bookedorders_que', enqopt, msgprop,
OE_enq_order_data, enq_msgid);
/* Get the lob locator in the queue table after enqueue: */
SELECT t.user_data.coupon INTO lob_loc
FROM OE.OE_orders_pr_mqtab t
WHERE t.msgid = enq_msgid;
/* Generate a sample LOB of 100 bytes: */
buffer := hextoraw(rpad('FF',100,'FF'));
/* Fill in the lob using LOB routines in the dbms_lob package: */
dbms_lob.write(lob_loc, 90, 1, buffer);
/* Issue a commit only after filling in lob contents: */
COMMIT;
/* Sleep until propagation is complete: */
/* Perform dequeue at the Western Shipping warehouse: */
dbms_aq.dequeue(
queue_name => qname,
dequeue_options => dopt,
message_properties => mprop,
payload => deq_order_data,
msgid => deq_msgid);
/* Get the LOB locator after dequeue: */
lob_loc := deq_order_data.coupon;
/* Get the length of the LOB: */
length := dbms_lob.getlength(lob_loc);
/* Read the LOB contents into the buffer: */
dbms_lob.read(lob_loc, length, 1, buffer);
Visual Basic (OO4O): Example Code
This functionality is not available currently.
A Sample Application Using AQ 8-113