George,
The SET TRANSACTION command, according to the documentation, only lasts
until the next commit/rollback. That being the case I would not expect it's
duration to be very long. Also, I am not in favor of assigning a particular
application/session to any specific rollback segment since it has little effect
on overall database performance or capability. Sure it was applicable in older
versions of Oracle where a rollback segment behaved like a table, but since 7.x
where the optimal parameter came into use I prefer to set all rollback segments
as small, but with the ability to expand as needed. It has eliminated my need
for large rollback segments and almost eliminated the ORA-01555 errors.
Dick Goulet
____________________Reply Separator____________________
Author: "George Leonard (ZA)" <[EMAIL PROTECTED]>
Date: 10/2/2002 7:23 AM
Hi guys
I am trying to create the following trigger.
The user in question is logging in using siebel application and siebel does
not allow multiple SQL statements during login so we through this might
solve the problem. My problem now is though, the set rollback works but the
alter session statements does not seem to want to work.
The server needs to be in RBO since this is the only mode supported by
siebel.
Help appreciated.
create or replace trigger smload.logon after logon on database
begin
SET TRANSACTION USE ROLLBACK SEGMENT RBBIG01;
Alter session enable parallel query;
Alter session set SORT_AREA_SIZE = 10485760;
Alter session set OPTIMIZER_MODE = choose;
end;
/
George
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