How to Fire Trigger, when changes are applied on destination??

Question

Hi,
I want to fire the following trigger at destination, when changes are applied from source table (cms.test_2) to destination table(cms.test_2).
create or replace trigger Ins_and_upd
after insert or update of send_status on cms.test_2
declare
begin
update cms.test_2
set RECEIVE_STATUS = 'YES'
where UPPER(send_status)=upper('YES');
end;
Thanks,
faziarain

Answer 1

I am using oracle10g stream replication, and database version is "10.2.0.1.0".
Basically I have 2 machines named:
--> Site#1_DB ----> Having Table TEST_2 -----> Columns (BID,DBID,Send_Status,Receive_Status,Final_Status).
--> Center_DB ----> Having Table TEST_2 -----> Columns (BID,DBID,Send_Status,Receive_Status,Final_Status).
My Senario example is following:
At Site#1_DB TEST_2 Table contains the following data:
TEST_2 is updating and set the YES value in "Send_Status" column, and this change will replicated to Center_DB TEST_2 table.
BID----------DBID----------Send_Status----------Receive_Status----------Final_Status
1----------2----------YES----------NULL----------NULL----------NULL
2----------3----------YES----------NULL----------NULL----------NULL
3----------4----------YES----------NULL----------NULL----------NULL
4----------5----------YES----------NULL----------NULL----------NULL
At Center_DB TEST_2 Table contains:
In My Senario changes are successfully replicated at Center_DB TEST_2 Table and after replication
Test_2 table is same on both machines.
But Now I want to write my given trigger at Center_DB and this trigger will be fired when changes are replicated
from Site#1_DB to Center_DB.
BID----------DBID----------Send_Status----------Receive_Status----------Final_Status
1----------2----------YES----------NULL----------NULL----------NULL
2----------3----------YES----------NULL----------NULL----------NULL
3----------4----------YES----------NULL----------NULL----------NULL
4----------5----------YES----------NULL----------NULL----------NULL
Output After Firing the trigger at Center_DB:
BID----------DBID----------Send_Status----------Receive_Status----------Final_Status
1----------2----------YES----------YES----------NULL----------NULL
2----------3----------YES----------YES----------NULL----------NULL
3----------4----------YES----------YES----------NULL----------NULL
4----------5----------YES----------YES----------NULL----------NULL
Thanks,
Faziarain.
Edited by: [email protected] on Mar 30, 2009 10:00 PM
Edited by: [email protected] on Mar 30, 2009 10:17 PM
Edited by: [email protected] on Mar 31, 2009 3:48 AM