Re: MySQL or Oracle
From: Paulie <paul_at_not.a.chance.ie>
Date: Sat, 09 Nov 2002 13:06:24 GMT
Message-ID: <3dcd0847.11417297_at_news1.eircom.net>
Date: Sat, 09 Nov 2002 13:06:24 GMT
Message-ID: <3dcd0847.11417297_at_news1.eircom.net>
Jayne Heger <hegerthehorrible_at_hotmail.com> wrote:
> Ok, I am working on a database model using the top down Exteded Entity
> will comprise of superclass and 4 subtypes. plus other entity typesm maybe
> a weak entity, and obviously it will be fully relational, primary keys and
> foreign keys. After which I will run some SQL queries to test that its
> working and print these off.
You may want to look at Postgres - it has datatypes which can inherit from each other - the only one that I know of!
Paul...
> Jayne
-- plinehan__AT__yahoo__DOT__comReceived on Sat Nov 09 2002 - 14:06:24 CET