Re: SQL Statement Help Needed

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Re: SQL Statement Help Needed
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053201c5fa1f$ae809640$0201a8c0@iwing
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SQL Statement Help Needed "Michael Avila" <Michael.Avila.1@sbcglobal.net>
Re: SQL Statement Help Needed brew@theMode.com
From: 
> the reason for doing this is that you eliminate
> database dead space (people that don't have faxes
> won't store a null in the db (i think it is null) and
> the db won't have to manage the null values).

correct me if i'm wrong, but i don't think having a completely normalized 
datastructure makes always sense. if one would need to query an employee and 
having all phone numbers & stuff in one single view, you'll end up having a 
huge amount of joins. this is bound to "cost" performance while the "win" 
(diskspace) is relatively small.

- thomas


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