Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> c.d.o.server -> Re: Redo log and RBS

Re: Redo log and RBS

From: William Dangren <wdangren_at_navisent.com>
Date: Thu, 05 Aug 1999 12:45:39 -0400
Message-ID: <37A9BFB3.3F41159A@navisent.com>


Also, Oracle writes an atomic image to the redo log buffers (small before and after image for a specific row). So when you have LGWR writing from the redo buffer you get more information in each write. That is why commits are fast, it writes less information to the disk. One block can record several transactions. In the rollback however, it copies the full blocks as they appear before any changes.

Bill

--
William Dangren
Navis Enterprises
407.348.6401
800.219.0207 Received on Thu Aug 05 1999 - 11:45:39 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US