Re: Treating addresses in 3NF?
From: David Cressey <david_at_dcressey.com>
Date: Sat, 16 Nov 2002 16:36:31 GMT
Message-ID: <juuB9.269$0I3.27200_at_petpeeve.ziplink.net>
Date: Sat, 16 Nov 2002 16:36:31 GMT
Message-ID: <juuB9.269$0I3.27200_at_petpeeve.ziplink.net>
> So let's take a look at your
> relation:
>
> Customer(ID, Name, Address1, Address2, City, Zip_code )
>
> How do we know that the two addresses have the same city and zip code? We
> probably don't so let's fix that:
>
PMFJI. Are you sure that Address1 and Address2 are not two lines on a
single address?
For example:
<address1>Suite 503
<address2>1125 Wisconsin Ave.
Received on Sat Nov 16 2002 - 17:36:31 CET