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Re: Checkpoint ...

From: Tanel Poder <tanel.poder.003_at_mail.ee>
Date: Fri, 16 Jan 2004 07:49:33 -0800
Message-ID: <F001.005DD076.20040116074933@fatcity.com>


> Whenever checkpoint happens datafile header scn and controlfile scn
> will be in sink. Is my assumption is right? Is there any other scenarios
> where checkpoint only update controlfile and doesn't update datafile
> header? Agreed, during "begin backup" mode datafile header will be
> frozen.. Other than that any scenarios?

Note that not the *whole* header of a datafile is *not* frozen during backup mode, only the checkpoint_scn and checkpoint_time structure in it are (+ possibly few others), but for example checkpoint_count for this datafile still keeps incrementing due checkpoints.

Tanel.

-- 
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Author: Tanel Poder
  INET: tanel.poder.003_at_mail.ee

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Received on Fri Jan 16 2004 - 09:49:33 CST

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