Re: Fragmented vs. Contiguous vs. Single-extent segments

From: Nick P <nick_pope_at_hotmail.com>
Date: Sat, 14 Apr 2001 17:14:50 +0100
Message-ID: <tdgts94f4k8ic9@xo.supernews.co.uk>

Interesting, but not a 'real life' experiment. Very few systems will do full table scans. I would more interested to see how access speeds using indexes would be affected.

"Nuno Souto" <nsouto_at_nsw.bigpond.net.au.nospam> wrote in message news:3ad83759.4426325_at_news-server...
> On Sat, 14 Apr 2001 10:39:04 +0100, millerp_at_sql.org.uk (Paul Miller)
> wrote:
>
> >
> >Your comments are welcome.
> >
>
> Doesn't surprise me at all. I've been saying that defragging a
> database is completely useless since V7. And in V6, it wasn't really
> necessary provided the correct init.ora parameters were set.
>
> But I'll let all the industrious dbas out there who defrag daily
> religiously continue to do their thing. It looks good in the resumes.
>
> BTW, congratulations on your effort. Looks like you did a good job of
> pointing out the real problem that may be caused by fragmentation.
>
>
> Cheers
> Nuno Souto
> nsouto_at_bigpond.net.au.nospam
> http://www.users.bigpond.net.au/the_Den/index.html
Received on Sat Apr 14 2001 - 11:14:50 CDT