Rollback in a trigger

Question

Using a trigger on update.
In the code for the trigger I want to do the following:
Update a table in another database on the same server using a database link.
Update a table in another database on a remote server using a database link.
Delete the row that is currently being updated.
If any errors occur, I have:
EXCEPTION
     WHEN OTHERS
     THEN ROLLBACK
The idea is that if any of the three actions fail, then an exception will occur and the previous actions would roll back.
If I take down the remote server, I would expect that the error handling would come into play. It’s not. The changes on the local database have occurred. Am I doing something wrong, flawed logic?

Answer 1

Thanks for the help Kamal.
Not real familiar with autonomous transaction, but you have to define that in the trigger, right?
I'm including the code below. If I'm not using autonomous transaction, is the rollback in the error handling causing my problem? Should I just remove the whole error handling portion?
CREATE OR REPLACE TRIGGER F_SW.TR_CENTERA_REPL
AFTER INSERT
ON F_SW.REPLICATION_VALUES
DECLARE
rowRV f_sw.replication_values%ROWTYPE;
cursor c1 is select f_docnumber, fnp_clipid, fnp_archive
from f_sw.replication_values;
BEGIN
Open c1;
loop
fetch c1 into rowRV;
exit when c1%NOTFOUND;
update DOCTABA@IDBDEV2
set A60 = rowRV.fnp_archive, A61 = rowRV.fnp_clipid
where F_DOCNUMBER = rowRV.f_docnumber;
--second, update the local FOCUS FIIV table
update FIIV_INDEX_VAL@FIT1
set CENTERA_ARCH_D = TO_DATE('1/1/1970', 'mm/dd/yyyy') + rowRV.fnp_archive,
CENTERA_ADDR_X = rowRV.fnp_clipid
where DOC_ID_N = rowRV.f_docnumber;
--finally, delete this row from replication values
delete
from REPLICATION_VALUES
where F_DOCNUMBER = rowRV.f_docnumber;
end loop;
--clean up
close c1;
EXCEPTION
WHEN others
THEN rollback;
END;