Re: Thesis on PostgreSQL

-----Original Message-----
From: pgsql-hackers-owner(at)postgresql(dot)org on behalf of D'Arcy J.M. Cain
Sent: Sat 9/4/2004 2:24 PM
To: Jim C. Nasby
Cc: peter_e(at)gmx(dot)net; neyinagho(at)yahoo(dot)com; pgsql-hackers(at)postgresql(dot)org
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.