History of rdbms

Answer 1

1970 - In 1970, Edgar Codd, an IBM computer scientist, wrote a number of papers which developed the idea of a new form of relational database which went beyond the then current hierarchical and network database models. Codd's paper was instrumental in the development of IBM's prototype relational database known as System R (and ultimately in the development of IBM's DB2 database), as well as Oracle, the first commercial relational database

1979 - Later in 1979, it was renamed Relational Software Inc and finally it was renamed Oracle. Prior to this Ellison was inspired by the paper written by Edgar F.("Ted") Codd on relational database systems named "A Relational Model of Data for Large Shared Data Banks. Ellison and his partners won a two-year contract to construct a relational database management system (RDBMS) for the CIA with project's code name: ORACLE. Starting with eight employees and with revenue less

Jan 5, 1989 - When it can keep track of information in two or more lists simultaneously, it is a relational database. ... A relational database program would allow you to print reports or view on-screen data displays and entry forms combining elements of information from any of those lists

Oct 3, 1993 - Today, we also have relational databases for the masses, a new genre priced for imminent arrival on your desktop-accompanied by the resounding "thud" that ... The first blow came in November 1992 when Microsoft Corp

Dec 1995 - Illustra's objective was to revolutionize database management technology through a marriage of object-based and relational database management systems. By December 1995, Illustra was well on the way toward accomplishing that objective. Its technology, developed by Dr. Stonebraker, a professor of the University of California Berkeley, represented the first breakthrough in the 25-year history of the relational database.

Dec 1995 - Illustra's objective was to revolutionize database management technology through a marriage of object-based and relational database management systems. By December 1995, Illustra was well on the way toward accomplishing that objective. Its technology, developed by Dr. Stonebraker, a professor of the University of California Berkeley, represented the first breakthrough in the 25-year history of the relational database

Dec 3, 1996 - 56. On December 3, 1996, Informix issued a press release announcing the shipment of its next generation database software product, the Universal Server. The Company's release stated in pertinent part: Informix Software, Inc., (NASDAQ: IFMAX), the leading provider of object-relational database technology, today announced the on-time availability of INFORMIX-Universal Server, the industry's leading open, completely integrated object-relational database management system

Nov 29, 1999 - "The component model for XML is complex enough that to store it in a relational database isn't practical," Hoag says. "In the relational-database world, you have to worry about foreign key references, the depth of the model. There is a lot more complexity in mapping an XML component

Feb 1, 2002 - The Accenture system also creates a threat index, using massive computing power and relational database software. ... system designed to instantly pull together every passenger's travel history and living arrangements, plus a wealth of other personal and demographic information

Aug 2, 2004 - As a Java-only database, it does not compete directly against mainstream relational database servers, such as DB2, Oracle or Microsoft's SQL Server, ... Cloudscape was developed in the mid-1990s as a relational database created specifically to work with the Java programming language.

written by syed fatehyab ahmed

Answer 2

Database systems are very, very crude indeed, This was because of the amount of memory required to store information and as a database required a matrix which reserved much of the memory they were normally very small.

Around the 1960s, the earliest of electromagnetic database storage was used only by those who could afford it, because of its extremely costly. These were reel to reel magnetic tapes similar to those found in the early days of the Sinclair Spectrum. Then databases are used for research purposes, at this time computers were themselves considered a research project.

It wasn't until the 1970s, when ROM and ram memory was able to be increased and component prices began to decrease, was there any real headway with database management systems (DBS). In the 1980's all the major players who sold hardware systems started incorporating database management systems into their computers for system solution s.

At first, these database management systems were very specific to the computer and to the user. IBM was one of the leaders in this category, but soon many clones and competitors entered into the marketplace, all at varying price points with different and alternative solutions.

With the advent of the 90s, the shift turned from having an accurate database management system, to having one that was easily maintainable. This is because memory capacity started to grow, as well as the creation and spread of information. This is when some of the more sophisticated database management systems at the market. Then in the millennium we found that many "number" systems especially databases were corrupt because many users could not specify the years number above 2 digits . This was a crisis for software designers as well as database managers. With ever increasing speeds being achieved from processors and with newer more functional cooling systems being created the ram based memory issues were starting to slim down as file swapping was more efficient. This coincided with improved database indexing and more cross application functionality being developed which in basic means that multiple small data base systems can be interrogated in a fast sequence to bring out high levels of data very quickly.