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Re: Database schema for univesal usage

From: Paul <paul_at_test.com>
Date: Mon, 09 May 2005 14:08:10 +0100
Message-ID: <427f60bb$0$39071$ed2e19e4_at_ptn-nntp-reader04.plus.net> 






Chris wrote:


> Does anyone know about a intentions to build a general database schema


> (based on ER) that can be used for different purposes without changing

> the physical layer (tables, views)?




Well tables and views, in relational database terminology, are actually
in the logical layer, not the physical.



A database management system (DBMS) *is* a general schema that can be
used for different purposes without changing the physical layer. You
talk to the DBMS at a logical level, and it translates your commands to
the physical level, which is hidden from you.



Paul.
Received on Mon May 09 2005 - 15:08:10 CEST












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