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It does, but the moment you introduce changes to the program like my OrderPayments example you ultimately reduce the number of columns in the long run.
Software changes frequently in most places, because business rules change and because feature requests come in.
Designing your database this way, makes you more agile / quick to respond to those changes.
-----Original Message-----
From: Rob Berendt [mailto:rob@xxxxxxxxx]
Sent: Monday, August 28, 2017 1:25 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: RE: Database design question
As far as the space considerations adding a surrogate key, in addition to order number and line number, takes space also.
Rob Berendt
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