Error: cannot commit (when inserting the row)

Question

hai,
I create the trigger like below.
create or replace trigger proce
after insert on samp3
declare
ass date;
begin
select d into ass from samp3;
updatecourse(ass);
end;
when I try to insert the row then the error is come;
ERROR at line 1:
ORA-20001: An error was encountered - -4092 -ERROR- ORA-04092: cannot COMMIT in a trigger
ORA-06512: at "AUROLIVE.UPDATECOURSE", line 22
ORA-06512: at "AUROLIVE.PROCE", line 5
ORA-04088: error during execution of trigger 'AUROLIVE.PROCE'
can any one help me?
Regards,
Ramya.S

Answer 1

If u want to put commit on trigger use pragma
autonomous_transaction.what it does,it leave the main
transaction and commit the second transaction.Which can lead to logic problems and corruption of your business data if not used extremely carefully.
If you start transaction 1 and during that write some other data as transaction 2 using autonomous transactions and then subsequently find that there is an error or some reason not to commit transaction 1 then you cannot automatically roll back transaction 2 and would have to take care of it manually.
I see too many occurences of developers using autonomous transaction all over the place just because they want to get the data written to the database and then they're wondering why there is so much clutter in their data and the database integrity is poor from a business/logical point of view. The first thing any good design includes is a knowledge of the business transactions and when data should be committed and what the implications of using autonomous transactions are.