Re: RDBMS

sir,
 send me more details regarding the accessing the tables in dbms and rdbms.

Maheshwari Prasad Singh

"David Cressey" <david_at_dcressey.com> wrote in message news:<OUxa7.82$Iw2.5670_at_petpeeve.ziplink.net>...
> > What is the main difference between DBMS & RDBMS.
>
> "R". (somebody had to say it). :-)
>
> Seriously, many of the DBMS systems of the 1970s stored data in a
> collection of records, linked together into either hierarchies or networks
> by pointers to records stored in other records, much the way a hypertext
> link is stored in another html page. These systems were legitimately
> labeled as DBMS products, but not as RDBMS products.
>
> The Relational DBMS systems were distinguished from the hierarchical or
> network DBMSs by the fact that the relationships were expressed as data
> values, not as pointers. There are a host of other standards a "true
> relational"
> system is supposed to adhere to, according to the originators of the
> concept. These standards are often more honored in the breach than in the
> observance.
Received on Mon Aug 06 2001 - 06:55:30 CDT