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September 1997, Week 1

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Subject:	Re: Image Inefficient?
From:	"Michael A. Dobies" <[log in to unmask]>
Reply To:	[log in to unmask][log in to unmask]
Date:	Fri, 5 Sep 1997 08:35:18 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (26 lines)

Don't you have to go to the endof chain, before you can go backwards?

Michael Dobies

-----Original Message-----
From:   Gary Groves [SMTP:[log in to unmask]]
Sent:   Friday, September 05, 1997 7:49 AM
To:     [log in to unmask]
Subject:        Image Inefficient?

I need to create a new Image dataset. I want to retrieve the records in
reverse date order (LIFO). I was going to do a backwards chain read.
Someone told me that a reverse chain read was not efficient.

For other design reasons, I've decided to use a composite Omnidex key,
but I'm curious if the above is true. If so, Why?

Gary Groves

Kwestions, Kwalms, Kweries, Komments....Kall!

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