-----Original Message-----
From: [EMAIL PROTECTED] on behalf of D'Arcy J.M. Cain
Sent: Sat 9/4/2004 2:24 PM
To: Jim C. Nasby
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: [HACKERS] Thesis on PostgreSQL
> The only "generation" differentiation I have ever heard about in general
> use was based on the language used to talk to the database. In that
> sense PostgreSQL is 3GL (SQL) and plpgsql might be 4GL. Progress is a
> 4GL. I'm not sure that's a feature though.
First week of a database module I did at Uni some years back discussed generations of
database along the lines of:
File systems/flat storage
Hierarchical databases (IMS)
Network databases(CODASYL)
Relational Databases (RDBMS)
Object Relational Databases (ORDBMS)
Which of course puts us as the latest generation. Dunno about Oracle...
Regards, Dave.
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