Re: A Simple Rollback Segment Question

From: <nlzanen1_at_EY.NL>
Date: Tue, 08 Jan 2002 03:30:56 -0800
Message-ID: <F001.003E9510.20020108031018@fatcity.com>

AFAIK this is a prehistoric requirement (Pre 7.3 I believe, No offense meant :-)). Oracle needed it to create the tablespaces etc. Since 7.3 this is no longer required (anyone know exactly when?). Personally I never create one. First thing I do though is create the rbs tablespace with a couple of rollback seg's before all other create scripts.

Jack

Naveen Nahata <naveen_nahata_at_yahoo.com>@fatcity.com on 08-01-2002 10:50:21

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Hello people,
This one is from Oracle Manual:

"In general, after database creation, you should create at least one additional rollback segment in the SYSTEM tablespace. "

I can understand that you should create one additional rollback segment after database creation b'coz otherwise oracle will use the SYSTEM rollback segment and this may lead to fragmentation in the SYSTEM tablespace and also a performance degradation. But why is one additional rollback segment needed in SYSTEM TABLESPACE?

TIA

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Received on Tue Jan 08 2002 - 05:30:56 CST