Someone posted this on borland.public.interbase.general today:
==========================
I happened to have a look "under the hood" of Interbase by looking into the
system relations etc. And now I have a question that somebody - I hope -
can answer:
Is Interbase a further development, port or just a case of reverse-
engineering of Digital's RDB in some version? I know Oracle was working to
port RDB to Windows and Unix/Ultrix (version 8.0 that never left beta-
stage). I am just very curious as there are still lots of people that
consider RDB the best relational database ever made.
So, any comments from anybody who knows or just has a clue?
==========================


Rob S. answered
----------------------------------
The original author of InterBase was on the RDB team at DEC and left to
set up InterBase. At one time you they had the same api interface.
----------------------------------


And the original poster wrote:
==========================
and why the RDB$ prefix in database's own internal relations... ;-)
...and why the internal relations have almost identical layout to what I
remember from my time with RDB... ;-))
I am glad some part of DEC is till alive, although in some other shape.
Good luck!
==========================


--
Aage J.