Re: Entities - what are they?

From: Bernard Peek <Bernard_at_shrdlu.com>
Date: 2000/01/14
Message-ID: <WmjNJ3A4Ntf4EwRR@shrdlu.com>#1/1

In article <QYrf4.2273$3b6.12609_at_ozemail.com.au>, P Mitchell <prmitch_at_camtech.net.au> writes
>Is an entity any file (table) in a database.

No.

>So in a library BOOKS and MEMBERS are entities.

That's possible. An entity is a logical structure not a physical one. There may be a 1:1 mapping between entities and tables but it's certainly possible to include data about more than one entity in a single table.

-- 
Bernard Peek
bap_at_shrdlu.com
bap_at_shrdlu.co.uk

Received on Fri Jan 14 2000 - 00:00:00 CST