Re: what is meant by dirty buffers

This buffers are changed by Oracle in memory only (in cache), so they are different from the blocks on disk Therefore, they must be written to disk, after which they are not dirty any more. That's how oracle makes changes to speed up the process - everything is done in memory first, then written to disk.

Alexandre
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Monday, May 13, 2002 1:43 PM

> Hi,
>
> In a book I read that DBWO writes dirty data buffers from data buffer
cache
> to the data files. I would appreciate if someone could kindly clear my
> confusion.
>
> What is meant by dirty data buffers? If these are dirty (not good/healthy)
> why to write to these to data files?
>
> TIA!
>
> Aleem
>
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> INET: dmit_at_beaconhouse.edu.pk
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Alexandre Gorbatchev
  INET: alexandre.gorbatchev_at_avermann.de

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