For this AQ or possibly streams in 9i would be the best, but there is a 
bit of work to get either set up and functioning the way you want. The big 
benefit is done right you cant lose a message from one system to the 
other. 
This is fundamentally EAI integration without the messaging server.
You could effectively though have an EAI adaptor for your application with 
a bit of additional thought


Cheers

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"Ranganath K" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
28/08/2003 08:15 PM
Please respond to ORACLE-L

 
        To:     Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
        cc: 
        Subject:        How to invoke stored procedures from another instance?


Hi listers,
 
Assume that there are two instances in Oracle. Both instances are on 
different machines and different Oracle versions. There is a table on 
first instance. Any update on this table should invoke stored procedures 
on the second instance. This should be real time based. Options we looked 
at are
 
1. Trigger on the table invoking the procedures of the other instance
2. Using dbms_alert
3. Some kind of polling mechanism
 
Triggers we would like to avoid. Options we are left with are dbms_alert 
and polling mechanism. 
 
Is it possible to use dbms_alert in this case? If yes how?
 
Can you think of some kind of polling mechanism which will satisfy the 
need of real time communication? Updates on the table is done at a very 
fast rate, hence processing should also be at a fast rate.
 
Any help in this regard is very much appreciated.
 
Thanks and Regards,
 
Ranganath
 
MailFiler [RK-FM8B9B3]


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