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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Undo x Rollback Segments in 9i
Christopher,
Can you switch modes once the database has been in use for a while? Or do you need to recreate the database in order to do that?
Thanks,
Cherie
Christopher
Spence To: Multiple recipients of list ORACLE-L
<ORACLE-L_at_fatcity.com>
<cspence_at_FuelS cc:
pot.com> Subject: RE: Undo x Rollback Segments in
9i
Sent by:
root_at_fatcity.c
om
09/21/01 02:30
PM
Please respond
to ORACLE-L
There are two modes of rollback in 9i, undo and rollback. You either use the old way, or the new automatic way, but not both.
You would need to turn off the new feature if you want to use the old
method
of doing redo.
"Do not criticize someone until you walked a mile in their shoes, that way when you criticize them, you are a mile a way and have their shoes."
Christopher R. Spence
Oracle DBA
Phone: (978) 322-5744
Fax: (707) 885-2275
Fuelspot
73 Princeton Street
North, Chelmsford 01863
-----Original Message-----
Sent: Thursday, September 20, 2001 9:40 PM
To: Multiple recipients of list ORACLE-L
Friends :
I tried to create a rollback segment in 9i and its said to me :
CREATE PUBLIC ROLLBACK SEGMENT "RBS01" TABLESPACE "RBS"
*
ERROR at line 1:
ORA-30019: Illegal rollback Segment operation in Automatic Undo mode
Well, i realized that Oracle created for me some resource like rollback segment automaticaly.
My doubt :
If i will put the instance in Manual Undo I can to create the rollback segment, but i will lost the resource automatic.
does anyone use it or know how to use Automatic Undo ?
What is the best option :
Rollback or Undo Automatic.
I know rollback but i don't know Undo Automatic
Regards
Eriovaldo
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