Do you only ever envisage 255 Image Types?  And if you are making your
imagename an nvarchar you may a well make your description ntext.


N



-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: 05 July 2005 04:31
To: SQL
Subject: efficient design?

I'm building out a new photo gallery and I'm looking at different DB
designs. The gallery will have pictures on a per person basis as well as a
per event basis. I was thinking the following table for the pics:
imageid int primary
userid int primary
imagetype tinyint primary
imagename nvarchar
description text
height int
width int

Note the imageid, userid and imagetype all being primary. I'm thinking that
I can have the following example data:
image 1 for userid 1 is a personal image (imagetype 1)
image 2 for userid 1 is a personal image (imagetype 1)
image 1 for userid 1 is an event image (imagetype 50 for cfunited)
image 1 for userid 1 is an event image (imagetype 49 for powered by Detroit)
image 2 for userid 1 is an event image (imagetype 49 for powered by Detroit)
This would mean that I have an exact lookup for each user's images per type.
Is this efficient?
The normal way of doing this is to have a single imageid as an incremental
int or by having a separate table for personal and event images. 
Your thoughts?



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