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Re: Frequency of log switches

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Fri, 10 Oct 2003 16:12:13 +0100
Message-ID: <bm6ika$oee$1$8300dec7@news.demon.co.uk>

Note in-line.

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"Howard J. Rogers" <hjr_at_dizwell.com> wrote in message
news:3f83d530$0$29410$afc38c87_at_news.optusnet.com.au...

> Kurt-Erich Finger wrote:
>
> Neither does switching on archiving in itself generate extra redo.
It merely
> means that a copy of a log is taken once it has been switched away
from.
> The switching away from it in the first place still only happens
because
> the log gets full... and that's only possible if redo is being
generated.
>
There is the detail that CREATE TABLE AS SELECT is automatically nologging if the database is noarchivelog mode - the same may be true of indexes by now, but I don't recall testing it - so a switch from noarchivelog to archivelog could easily result in extra redo being generated.
Received on Fri Oct 10 2003 - 10:12:13 CDT

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