Re: Conceptual, Logical, and Physical views of data
Date: Tue, 30 Aug 2005 14:33:34 +0300
Message-ID: <df1g6f$3nv$1_at_domitilla.aioe.org>
"David Cressey" <david.cressey_at_earthlink.net> wrote in message news:EdWQe.3994$_84.75_at_newsread1.news.atl.earthlink.net...
> The logical view of data: the data as seen by the programmers. The
people
> who store and retrieve data from a database (or who write software that
does
> the same thing) view the data in terms of its appearance at the interface.
> Structural aspects of the data that are visible at the programming
> interface are part of the logical view. Structural aspects that are
> transparent at the interface are not part of the logical view. Structural
> alterations at the logical level may require program maintenance, but
> structural changes at the physical level will not.
Many programmers --> many "logical views of data" Received on Tue Aug 30 2005 - 13:33:34 CEST