RE: Difference Between DBMS/RDBMS

Ah yes, what newcomers to the computer age! The part I always find fascinating is that when the relational ideas were coming together around the time Codd made his 12 rules, the big question was: "will a relational database ever be practical?". Another point is that there were many competitors to SQL as a relational database access language at one time. In the end, SQL won, many would claim not because it was the best, but because of a series of the right historical circumstances coming together. Now, of course, the SQL RDBMS rules the database kingdom. The non-SQL RDBMS is a historical artifact. The non-RDBMS DBMS is still widely used in the mainframe world. If you take a trip this summer, realize that your ticket is probably processed by a non-relational DBMS and your aircraft is tracked by a non-relational DBMS.
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----

Sent: Tuesday, June 25, 2002 8:33 AM
To: Multiple recipients of list ORACLE-L

OK.
First were pre-relational DBMS. Like fms, network, hierarchical; programmatic & pragmatic. Different types. Some are still useful. Than Codd came with his 12 rules (12?) I believe INGRES was the fist one based on his research.
Than (80's) came Oracle, Sybase, DB2, Informix. btw, I believe Oracle was not relational until version... mmm 6 or 7? was 6 relational? Than came post-relational dbms with extended semantic, rule-based, etc. 90's - object oriented DB, spatial, distributed db, multi-dimensional, data warehouses and data mining, AI.
about 2000 came XML  

They all seem to be DMBS, but not all are RDBMS. In fact, can anybody name pure relational dbms?  

What did I forget, missed or make wrong?

• Original Message ----- To: Multiple recipients of list ORACLE-L <mailto:ORACLE-L_at_fatcity.com> Sent: Tuesday, June 25, 2002 2:18 PM

full form i also knew.
and also that all dbms have the features of rdbms also then, what is the difference ??  

santosh

-----Original Message-----

[mailto:root_at_fatcity.com]On Behalf Of Marcello Savino Sent: Tuesday, June 25, 2002 4:58 PM
To: Multiple recipients of list ORACLE-L

DBMS =Data Base Management System
RDBMS=Relational Data Base Management System But actually i do not know any dbms that's not an rdbms. Bye , Marcello
-----Messaggio originale-----

Da: Santosh Varma [mailto:vsantosh_at_psi.soft.net] Inviato: marted́ 25 giugno 2002 11.48
A: Multiple recipients of list ORACLE-L
Oggetto: Difference Between DBMS/RDBMS

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

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