RE: RE: Difference Between DBMS/RDBMS

Erm, programmed at college on something called a Sinclair ZX80 Spectrum 1K ram !!!!!!

-----Original Message-----
Sent: 25 June 2002 15:58
To: Multiple recipients of list ORACLE-L

Tom,

    As I recall DB2 on a PC came about way back in the dark days of the 8080 processor and DOS (no version) somewhere around 1980 I believe. I seem to vaguely remember running it on a very old (now a days) predecessor of the laptop. If memory is serving I believe it was called an Osborne? RDB was offered on the IBM mainframe and there was a VAX version that I remember playing
with as well.

    Yeah, it's good to be old and reflect on the twists & turns we went through
to make things work. Anyone remember programming with less than 1MB of ram? I
remember trying to make things work on 16K.

Dick Goulet
Human memory is fragile, thank GOD!

____________________Reply Separator____________________
Author: "Mercadante; Thomas F" <NDATFM_at_labor.state.ny.us>
Date:       6/25/2002 6:08 AM

Oh you bunch of young whipper-snappers!

A long time ago in a place far-away, we started with simple File Systems. Then came ISAM file systems.
These begate DBMS systems. Note there was no 'R' in original DBMS systems. Some of these were simply an extention to ISAM files that allowed (and demanded) a more formalized collection of files. In these files, there were tables and indexes and primary keys. I remember these as "Hierarchical Database Systems". Still no such thing as foreign keys.

Finally, I believe, DEC came out with the RBMS system which was (I know I will be corrected on this) one of the first Relational Database Managment Systems to be made available for large systems. (I have no knowledge of IBM products - anybody? When did DB2 make itself known?).

On PC's there was also something called RDB I think.

See, its good to be old!

Tom Mercadante
Oracle Certified Professional

-----Original Message-----
Sent: Tuesday, June 25, 2002 8:24 AM
To: Multiple recipients of list ORACLE-L

i give up the R, is that the difference?

joe

Santosh Varma wrote:

> could any body point me the difference(s) between DBMS and RDBMS ??
> because in DBMS also as in RDBMS, we can related two or more
> tables..if a column exists in another table for relation ??
>
> Thanks and regards,
>
> Santosh
>

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Joe Testa
  INET: jtesta_at_dmc-it.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Mercadante, Thomas F
  INET: NDATFM_at_labor.state.ny.us

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: dgoulet_at_vicr.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).


********************************************************************

The information contained in this communication is
confidential, is intended only for the use of the recipient
named above, and may be legally privileged.
If the reader of this message is not the intended
recipient, you are hereby notified that any dissemination, 
distribution, or copying of this communication is strictly
prohibited.
If you have received this communication in error,
please re-send this communication to the sender and
delete the original message or any copy of it from your
computer system. Thank You.

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Robertson Lee - lerobe
  INET: lerobe_at_acxiom.co.uk

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).