Advanced Queuing Help

Hi, I need help with creating an Advanced queue. I have already created the queue table but when I try to create the queue it says that it was sucessful, yet I can not find it. Also I need help with creating a SQL subscriber such that some sort of SQL code with enqueue a message, and the subscriber will dequeue and print it out or something. I am also going to set up a ESB process to do the some thing.
Here is my queue_table code:
dbms_aqadm.create_queue_table( queue_table => 'TEST_QUEUE_TABLE',
queue_payload_type => 'SYS.AQ$_JMS_TEXT_MESSAGE',
multiple_consumers => True);

Hey demorgan, I get this error with the demo. At some point I have to make a procedure with this:
SELECT TO_NUMBER(SUBSTR(dbms_crypto.randominteger,3,1))
INTO x
FROM dual;I get this error: ORA-00904: : invalid identifier
Also how do I view what is on a queue? This demo does not show that.

Similar Messages

Nested Tables and Advanced Queues- Please Help.

How do i work with NestedTable type and Advanced Queue.
I have done the following
I have Oracle 8.1.7 enterprise edition.
create type myType as TABLE OF varchar(32);
create type myObject as OBJECT (
id int,
myt myType);
DECLARE
BEGIN
dbms_aqadm.create_queue_table(
queue_table => 'my_queue_table',
multiple_consumers => TRUE,
queue_payload_type => 'myObject',
compatible => '8.1.3'
END;
The Nested Table and Object are created successfully.
but the queue is not created.
I get the following message.
DECLARE
ERROR at line 1:
ORA-22913: must specify table name for nested table column or
attribute
ORA-06512: at "SYS.DBMS_AQADM_SYS", line 2012
ORA-06512: at "SYS.DBMS_AQADM", line 55
ORA-06512: at line 3
I know how to specify the nested table storage clause for
create table statement, but there is no provision for
it in the create_queue_table procedure.
Any help will be greately appriciated.
i have already created and tested aqs with simple data types,
also i have created simple tables with nested table type
elements.
but the combo of Nested tables and AQ is not working.
thanks in advance.

Hi Francois. Thank you very much for your reply, but it seems that i still get errors. So let me tell what i have done.
As you suggested me: i have done a block based on a sub-query for the nested-table:
'select courses from department where name= :department.name'.
In the master block(department) i have the when-new-record-instance trigger:
Declare
LC$Req varchar2(256);
Begin
LC$Req := '(select ns.courses from table
( select courses from department where name = ''' || :DEPARTMENT.name || ''' ) ns )';
Go_block('block11');
Clear_Block ;
Set_Block_Property( 'block11', QUERY_DATA_SOURCE_NAME, LC$Req ) ;
Execute_query ;
End ;
Now the errors i receive, this time in the runtime mode are:
- FRM-41380: Cannot set the blocks query data source
-FRM-41003: This function cannot be performed here.
Since it seems that you know how to work with the nested table i would really appreaciate your help. I am new in the nested table and if you could give an ex with my tables it would be great.
Thank you in advance.

Help me in usage of advanced queuing please ....

hello all,
we are developing a network based application in java servlets and oracle 8i as database at the servers.
to transfer data as costomised messages we are using ibm mq series as middle layer on top of tcp/ip.
we want to replace ibm mq series with oracle advanced queuing.
i could not find any details regarding this latest feature
i want to know what are the java packages available to use this feature and how to use them
are they similar to that of ibm.mq package
can i have some sample code about the usage of them ?
please send me the details ......
with regards,
prasad

Try the standard ORACLE documentation
Oracle8i Application Developers Guide - Advanced Queuing (AQ).
There are also some examples.
Others you can find in $(ORACLE_HOME)\oci\samples

Does the advanced queue support setting the pay load type as array/table?

Does the advanced queue support setting the pay load type as array/table?
if yes, how to write the enqueue script, I tried to write the following the script to enqueue, but failed, pls help to review it . Thanks...
------Create payload type
create or replace TYPE "SIMPLEARRAY" AS VARRAY(99) OF VARCHAR(20);
------Create queue table
BEGIN DBMS_AQADM.CREATE_QUEUE_TABLE(
Queue_table => 'LUWEIQIN.SIMPLEQUEUE',
Queue_payload_type => 'LUWEIQIN.SIMPLEARRAY',
storage_clause => 'PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 TABLESPACE USERS',
Sort_list => 'ENQ_TIME',
Compatible => '8.1.3');
END;
------Create queue
BEGIN DBMS_AQADM.CREATE_QUEUE(
Queue_name => 'LUWEIQIN.SIMPLEQUEUE',
Queue_table => 'LUWEIQIN.SIMPLEQUEUE',
Queue_type => 0,
Max_retries => 5,
Retry_delay => 0,
dependency_tracking => FALSE);
END;
-------Start queue
BEGIN
dbms_aqadm.start_queue(queue_name => 'LUWEIQIN.SIMPLEQUEUE', dequeue => TRUE, enqueue => TRUE);
END;
-------Enqueue
DECLARE
v_enqueueoptions dbms_aq.enqueue_options_t;
v_messageproperties dbms_aq.message_properties_t;
p_queue_name VARCHAR2(40);
Priority INTEGER;
Delay INTEGER;
Expiration INTEGER;
Correlation VARCHAR2(100);
Recipientlist dbms_aq.aq$_recipient_list_t;
Exceptionqueue VARCHAR2(100);
p_queue_name VARCHAR2(40);
p_msg VARCHAR2(40);
p_payload LUWEIQIN.SIMPLEARRAY;
BEGIN
p_payload(1) := 'aa';
p_payload(2) := 'bb';
SYS.DBMS_AQ.ENQUEUE(queue_name => 'LUWEIQIN.SIMPLEQUEUE',enqueue_options => v_enqueueoptions, message_properties => v_messageproperties, msgid => p_msg, payload => p_payload);
END;
------Get error
Error starting at line 1 in command:
DECLARE
v_enqueueoptions dbms_aq.enqueue_options_t;
v_messageproperties dbms_aq.message_properties_t;
p_queue_name VARCHAR2(40);
Priority INTEGER;
Delay INTEGER;
Expiration INTEGER;
Correlation VARCHAR2(100);
Recipientlist dbms_aq.aq$_recipient_list_t;
Exceptionqueue VARCHAR2(100);
p_queue_name VARCHAR2(40);
p_msg VARCHAR2(40);
p_payload LUWEIQIN.SIMPLEARRAY;
BEGIN
p_payload(1) := 'aa';
p_payload(2) := 'bb';
SYS.DBMS_AQ.ENQUEUE(queue_name => 'LUWEIQIN.SIMPLEQUEUE',enqueue_options => v_enqueueoptions, message_properties => v_messageproperties, msgid => p_msg, payload => p_payload);
END;
Error report:
ORA-06550: line 17, column 3:
PLS-00306: wrong number or types of arguments in call to 'ENQUEUE'
ORA-06550: line 17, column 3:
PL/SQL: Statement ignored
06550. 00000 - "line %s, column %s:\n%s"
*Cause: Usually a PL/SQL compilation error.
*Action:

but when I use the following script to enqueue get error. Pls help to review. Thanks...
DECLARE
v_enqueueoptions dbms_aq.enqueue_options_t;
v_messageproperties dbms_aq.message_properties_t;
p_queue_name VARCHAR2(40);
Priority INTEGER;
Delay INTEGER;
Expiration INTEGER;
Correlation VARCHAR2(100);
Recipientlist dbms_aq.aq$_recipient_list_t;
Exceptionqueue VARCHAR2(100);
p_queue_name VARCHAR2(40);
p_msg VARCHAR2(40);
p_payload LUWEIQIN.SIMPLEARRAY;
BEGIN
p_payload(1) := 'aa';
p_payload(2) := 'bb';
SYS.DBMS_AQ.ENQUEUE(queue_name => 'LUWEIQIN.SIMPLEQUEUE',enqueue_options => v_enqueueoptions, message_properties => v_messageproperties, msgid => p_msg, payload => p_payload);
END;
------Get error
Error starting at line 1 in command:
DECLARE
v_enqueueoptions dbms_aq.enqueue_options_t;
v_messageproperties dbms_aq.message_properties_t;
p_queue_name VARCHAR2(40);
Priority INTEGER;
Delay INTEGER;
Expiration INTEGER;
Correlation VARCHAR2(100);
Recipientlist dbms_aq.aq$_recipient_list_t;
Exceptionqueue VARCHAR2(100);
p_queue_name VARCHAR2(40);
p_msg VARCHAR2(40);
p_payload LUWEIQIN.SIMPLEARRAY;
BEGIN
p_payload(1) := 'aa';
p_payload(2) := 'bb';
SYS.DBMS_AQ.ENQUEUE(queue_name => 'LUWEIQIN.SIMPLEQUEUE',enqueue_options => v_enqueueoptions, message_properties => v_messageproperties, msgid => p_msg, payload => p_payload);
END;
Error report:
ORA-06550: line 17, column 3:
PLS-00306: wrong number or types of arguments in call to 'ENQUEUE'
ORA-06550: line 17, column 3:
PL/SQL: Statement ignored
06550. 00000 - "line %s, column %s:\n%s"
*Cause: Usually a PL/SQL compilation error.
*Action:

Oracle Advanced Queuing - Propagation problem - 11g

Hi,
I have a problem when propagation messages between queues. When the message is propagated, it stays on the source queue with READY state.
I have created two queues on 11g with a propagation rule that any message from queue A are sent to queue B. My problem is that the message from the source queue stays in the source queue even after propagation, which isn't what I was expecting. The problem doesn't occur if the queues are on a different database. This problem only happens if the queues are on the same database.
the script I use is this:
For USERB (which has the destination queue)
create type EVENT_MESSAGE as object (
eventsource VARCHAR2(30),
eventname VARCHAR2(255),
eventid NUMBER(19,0),
message CLOB
DECLARE
an_agent sys.aq$_agent;
BEGIN
-- create the publish/subscribe queue table
dbms_aqadm.create_queue_table(
queue_table => 'DESTINATION_QUEUE_TABLE',
queue_payload_type=>'EVENT_MESSAGE',
sort_list => 'ENQ_TIME',
message_grouping => DBMS_AQADM.NONE,
multiple_consumers=>true
-- create the queue
dbms_aqadm.create_queue(
queue_name => 'DESTINATION',
queue_table => 'DESTINATION_QUEUE_TABLE',
queue_type => DBMS_AQADM.NORMAL_QUEUE,
max_retries => 5
dbms_aqadm.create_aq_agent(agent_name =>'DEQUEUE_AGENT');
an_agent := sys.aq$_agent('DEQUEUE_AGENT', null, null);
dbms_aqadm.enable_db_access(
agent_name => 'DEQUEUE_AGENT',
db_username => 'USERB'
dbms_aqadm.add_subscriber(
queue_name => 'DESTINATION',
subscriber => an_agent,
queue_to_queue => FALSE,
delivery_mode => DBMS_AQADM.PERSISTENT
-- start the queues
dbms_aqadm.start_queue('DESTINATION');
END;
For USERA
create type EVENT_MESSAGE as object (
eventsource VARCHAR2(30),
eventname VARCHAR2(255),
eventid NUMBER(19,0),
message CLOB
BEGIN
-- create the publish/subscribe queue table
dbms_aqadm.create_queue_table(
queue_table => 'SOURCE_QUEUE_TABLE',
queue_payload_type=>'EVENT_MESSAGE',
sort_list => 'ENQ_TIME',
message_grouping => DBMS_AQADM.NONE,
multiple_consumers=>true
-- create the queue
dbms_aqadm.create_queue(
queue_name => 'SOURCE',
queue_table => 'SOURCE_QUEUE_TABLE',
queue_type => DBMS_AQADM.NORMAL_QUEUE,
max_retries => 5
-- start the queues
dbms_aqadm.start_queue('SOURCE');
-- create the propagation
dbms_aqadm.add_subscriber(queue_name => 'SOURCE',
subscriber => sys.aq$_agent('DEQUEUE_AGENT','USERB.DESTINATION',null),
queue_to_queue => true);
dbms_aqadm.schedule_propagation(queue_name => 'SOURCE',
start_time => sysdate,
latency => 25,
destination_queue => 'USERB.DESTINATION');
END;
When I enqueue a message to the source on USERA with this:
declare
rc binary_integer;
nq_opt dbms_aq.enqueue_options_t;
nq_pro dbms_aq.message_properties_t;
datas EVENT_MESSAGE;
msgid raw(16);
begin
nq_pro.expiration := dbms_aq.never;
nq_pro.sender_id := sys.aq$_agent('ENQUEUE_AGENT', null, null);
datas := AGEAS_EVENT_MESSAGE('message','eventname',1,null);
dbms_aq.enqueue('SOURCE',nq_opt,nq_pro,datas,msgid);
end;
The message is propagated to the destination queue, no problem, but the message state on the source queue is kept as ready. I would have expected it to be marked as processed and disappear from the queue table.
When I look at the AQ$_SOURCE_QUEUE_TABLE_S the I see these records:
     QUEUE_NAME     NAME     ADDRESS     PROTOCOL      SUBSCRIBER TYPE
     SOURCE     (null)     "USERB"."DESTINATION"@AQ$_LOCAL     0     1736
     SOURCE     DEQUEUE_AGENT     "USERB"."DESTINATION"     0     577
Can anyone help?

I was talking about following oracle documentations:
Oracle Database 11g: Advanced Queuing (Technical Whitepaper)
Streams Advanced Queuing: Best Practices (Technical Whitepaper)
Oracle Streams Advanced Queuing and Real Application Clusters: Scalability and Performance Guidelines (Technical Whitepaper)
They are available at.. http://www.oracle.com/technetwork/database/features/data-integration/default-159085.html

Advanced queue in Oracle9i Standard Edition One

Hi,
Is advanced queuing available in the Standard Edition One for 9i?
Thanks,
Gloria

Hi!
i think, that the SE One is only an edition for 10g. in 10g and 9i advanced queuing is included in every available edition. Please refer to:
http://www.oracle.com/technology/products/database/oracle10g/pdf/twp_general_10gdb_product_family_0104.pdf
and
http://www.oracle.com/technology/products/oracle9i/pdf/9idb_rel2_prod_fam.pdf
hope tat helps
AndrÃ©

Integration Oracle Advance Queue with OSB

We are doing integration for Oracle Advance Queue with OSB.
I created an AQ adapter in Jdev and generate the WSDL and XSD.
I imported both WSDL and XSD in OSB Project.
When i am configuring the business service and selecting the WSDl i am not able to select Binding and ports, is it due to any issue in WSDL?
Please help.
Thanks,
Mihir Panda

Hi again,
I made some adjustments to your wsdl. I added the binding part and its reference to the appropriate port.
Now I reckon, you should be able to do your thing:
<wsdl:definitions
name="enq"
targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/aq/Applicatio90/Project4/enq"
xmlns:jca="http://xmlns.oracle.com/pcbpel/wsdl/jca/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:tns="http://xmlns.oracle.com/pcbpel/adapter/aq/Applicatio90/Project4/enq"
xmlns:opaque="http://xmlns.oracle.com/pcbpel/adapter/opaque/"
xmlns:obj1="http://xmlns.oracle.com/xdb/APPS"
xmlns:ph="http://xmlns.oracle.com/pcbpel/adapter/aq/headers/payloadheaders/"
xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
>
<plt:partnerLinkType name="Enqueue_plt" >
<plt:role name="Enqueue_role" >
<plt:portType name="tns:Enqueue_ptt" />
</plt:role>
</plt:partnerLinkType>
<wsdl:types>

<schema attributeFormDefault="qualified" elementFormDefault="qualified"
targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/aq/headers/payloadheaders/"
xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:obj1="http://xmlns.oracle.com/xdb/APPS" >
<import namespace="http://xmlns.oracle.com/xdb/APPS" schemaLocation="xsd/APPS_WF_EVENT_T.xsd"/>
<complexType name="enqHeaderCType" >
<sequence>

<element name="PayloadHeader" type="xs:string" />
</sequence>
</complexType>
<element name="enqHeader" type="ph:enqHeaderCType" />
</schema>
<schema targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/opaque/"
xmlns="http://www.w3.org/2001/XMLSchema" >
<element name="opaqueElement" type="base64Binary" />
</schema>
</wsdl:types>
<wsdl:message name="Enqueue_msg">
<wsdl:part name="opaque" element="opaque:opaqueElement"/>
</wsdl:message>
<wsdl:message name="Header_msg">
<wsdl:part name="Header" element="ph:enqHeader"/>
</wsdl:message>
<wsdl:portType name="Enqueue_ptt">
<wsdl:operation name="Enqueue">
<wsdl:input message="tns:Enqueue_msg"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="Enqueue_Binding" type="tns:Enqueue_ptt">
     <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
          <wsdl:operation name="Enqueue">
               <soap:operation soapAction="put_your_own_URI_here"/>
               <wsdl:input>
                    <soap:body use="literal"/>
               </wsdl:input>
          </wsdl:operation>
</wsdl:binding>
<wsdl:service name="EnqueueService">
     <wsdl:port name="Enqueue_ptt" binding="tns:Enqueue_Binding">
          <soap:address location="No Target Adress"/>
     </wsdl:port>
</wsdl:service>
</wsdl:definitions>
Good luck.
Regards,
Ronald

Oracle Advance Queue

I am using Jdev / oc4j as my server. I have a message driven bean created which is supposed to listen to an advance queue created in an oracle db. I am having a lot of trouble deploying the application. Is there an easier way out of editing the xml files and writing deployment descriptor? Please help.
Regards,
Yazad Khambata.

Hi,
Just wondering if you were able to figure this out. I am too looking the samething. Basically MDB to listen on AQ, Can someone provide a simple example.
Thanks

Advanced queues are waiting in ready status and do not process

Advanced queues are waiting in ready status and do not process.
There are no Db locks.
DB 11.2.0.2.0

Hi,
With this information it is not possible to get appropriate answer in the forum.
By the way you checked alert log file.
Check the below link also:
http://www.cs.umbc.edu/portal/help/oracle8/server.815/a68005/03_adq2f.htm
Best regards,
Rafi.
http://rafioracledba.blogspot.com/

Advanced Queuing between 2 databases

Hi,
We want to use Oracle Advance Queuing to send a message from a source Database (transactional) to a Reporting database
On a particular event on a record in the source database, we want to enqueue the record's code on a Queue in the target database, where the dequeuing will happen and some processing will take place for each code retrieved.
Do we need to set up the Advanced Queuing software on both DBs?
- Can we just have 1 queue on the target DB and get the source Database to enqueue records to it? How will the source DB will be given access to the queue?
- Or do I really need to have a queue on each Database and use propagation?
Thanks in advance for your help.
Rgds

Tony,
thanks very much for your precious advice.
I like your suggestion of having one queue, it keeps the infrastruture simple.
Have I got the option of having this single queue either at the source or the target DB?
Maybe let me summarise more precisely what I am trying to achieve: we want to copy a complex data structure on the Source DB to a simplified/flatter data structure on the reporting DB.
An event on a row on the main table on the source DB triggers the copy.
We are thinking of enqueing of the record's id to the queue (So app on the source DB will have to enqueue)
and when dequeuing each message , a stored procedure will read the data structure for this record id and child tables and insert the relevant data to the report data structure on the target DB.
So with one queue, it seems that there are 3 options, not sure which is best. The idea is to have minimum impact on the source DB
1. Queue at the target DB. Source DB enqueues message remotely (is this possible? can't find any documentation about this?). Message is dequeued at the target and the proc (at target) reads from the source with DB link and writes the new data to the target
2. Queue at the source DB. Source DB enqueues message locally, an application on the target DB dequeues the message and the procedure (at target) reads from the source with DB link and writes the new data to the target DB.
3.Queue at the source DB. Source DB enqueues message locally, an application on the source DB dequeues the message and the procedure (at source) reads data from the source and writes the new data to the target using a DB link
3. seems having the most impact on performance of the source db?
In all case I don't think I can avoid a DB link in the sored proc (one way or the other) as the data structures are a too complex to be passed through the queue....
What do you think?
Thanks
Philippe

Oracle advanced queuing

Hi,
I am new to Oracle Advanced queuing. I have a question.
After enqueue operation, the message can be retrieved by dequeue operation.
But, why do we need SCHEDULE_PROPAGATION ?
Do we use that when we are sending it to a totally differnt queue in someother remote database ?
Thanks,
Message was edited by:
user448390

Do we use that when we are sending it to a totally
differnt queue in someother remote database ?yes, partly true...SCHEDULE_PROPAGATION is used when we schedule propagation of messages to a destination identified by a Database Link.
DBMS_AQADM.SCHEDULE_PROPAGATION (
   queue_name          IN    VARCHAR2,
   destination         IN    VARCHAR2 DEFAULT NULL,
   start_time          IN    DATE     DEFAULT SYSDATE,
   duration            IN    NUMBER   DEFAULT NULL,
   next_time           IN    VARCHAR2 DEFAULT NULL,
   latency             IN    NUMBER   DEFAULT 60,
   destination_queue IN VARCHAR2 DEFAULT NULL);
destination_queue -- Name of the target queue to which messages are to be propagated in the form of a dblink.
Messages may also be propagated to other queues in the same database by specifying a NULL destination. If a message has multiple recipients at the same destination in either the same or different queues, the message is propagated to all of them at the same time.
Hope this will help..
Thanks

FORMS APEX communication through Advanced Queuing

Hi there,
I have to prepare a proof of concept for an APEX application and the customer asked me if it is possible to establish a communication between FORMS and APEX besides using an URL call.
Would the usage of Advanced Queuing be a good practice for this asynchronous communication?
Regards
Tareq.

AQ will work on the Forms side, but not (or very complex) on the APEX side, because APEX is stateless (so no DB connection) and uses session pooling (you can hav another DB session for every roundtrip).
But maybe this will help:
http://roelhartman.blogspot.com/2008/11/integrate-oracle-forms-with-apex.html
http://roelhartman.blogspot.com/2009/10/forms-apex-integration-video.html
http://roelhartman.blogspot.com/2009/10/integration-of-forms-and-apex-calling.html

Queries on Advanced Queuing in Oracle Database

Hi All,
We are new to Advanced Queuing.
We have a requirement wherein we need to implement Oracle AQ.
However upon some R&D, we got the basic idea of AQ.
But we would like to know on a broad level,
i.     The Purpose of enabling/Using AQ
ii.     Basic understanding on the different components of AQ like Creating Payload, Enqueue, Dequeue messages
iii.     Some high level understanding of the API’s – Which to use when and the purpose
iv.     Challenges faced
v.     Possible issues and Resolutions.
If anyone can help us with the above questions, it would be of great help.
Regards,
Shruti

Michael Ferrante (Oracle) wrote:
Enable at least level 2 tracing in the console. You should see an exchange occur every 2 seconds (2000ms). If you do not see this then your MAX_WAIT is not being read. To enable trace level 2, open the console and left click in the text area of it. Then press the number 2 on the keyboard just above the letters Q and W. Do not use the number pad, as this will not work.If enable Level 2 in JavaConsole, nothing is written there. However, when the level 3, then every 2 seconds is displayed in the console this line:
network: Connecting http://localhost:7001/forms/lservlet;jsessionid=LvhyQ0QNg5KkJ17vnch3pQSMT6Z00B16yVr7m64npFKTKp1pBBjv!656070063 with proxy=DIRECTI changed the file formsfeb.cfg, set MaxEventWait = 5000. All restart, And a similar message is displayed every 5 seconds in the console.
network: Connecting http://localhost:7001/forms/lservlet;jsessionid=r31zQ0TLpHxK3kjBqMBk0tvYf9hn6wn6sGpKRppTvSX1f70pv0GS!571608984 with proxy=DIRECT
network: Connecting http://localhost:7001/ with proxy=DIRECT

Bisics of Advanced Queuing????

Hi,
I need to write a PL/SQL stored procedure to periodically carry out some processing in the database.
Only one instance of the procedure is allowed to be run at any point in time. If an attempt to run the procedure is made while it is currently working it should be deferred until the current instance has completed it's task.
I think one possible solution is to use the Advanced Queuing feature in Oracle 9.
Please. Can anyone confirm this as a good idea (if so suggest how to get started) or offer other suitable solutions?
Any relevant comments most welcome?
Many thanks
Tyrone

Sorry about the typo in the subject.
I will need to use Oracle's batch scheduling feature (dbms_job) to periodically put onto the queue the request for some work to be done (say every two hours). My intention is to use the batch scheduling to enqueue this request.
The sticking point for me is the configuration of the dequeuing process. Can the queue be configured to automatically invoke an event (some PL/SQL code) once the message works it's way to the top of the queue. This will help avoid a convoluted senerio of setting up another sceheduled batch process to dequeue messages every five minutes (the work to be done can be initiated from sources other then the sheduled job also).
Thanks in advance for replies.

Advance Queue - Parallelism

I'm using an queue with async. notification.
My callback procedure will be called for every message, but its everytime the same job, so only one message will be procced at one time.
Is it possible to configure oracle, to use more processes.
I don't mean dispatch the same message to many consumers.
Anybody out there who knows ??
Even if i increase the job queue process it is taking maximum of 6 or 7 parallel queues at a time.
Whether i have to set any other setting to AQ.
Please give our answer on this issue it is more help to me.
Reagrds,
TOM

Hello,
I am also facing the same problem.
I have the stored procedure which regularly takes the back up at some fixed interval. I want to do these using Advance Queuing. I wnat to do these using Oracle installed on Linux.
Please help to have the solution. You can also reply me at [email protected] .

Advanced Queuing Help

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