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relational data model

   Also found in: Acronyms, Wikipedia 0.07 sec.
(database)relational data model - (Or "relational model") A data model introduced by E.F. Codd in 1970, particularly well suited for business data management. In this model, data are organised in tables. The set of names of the columns is called the "schema" of the table.

Here is an example table with the schema (account number, amount) and 3 lines.

account number amount -------------- --------- 12343243546456 +30000.00 23149875245824 +2345.33 18479827492874 -123.25

The data can be manipulated using a relational algebra. SQL is a standard language for talking to a database built on the relational model (a "relational database").

["A relational model for large shared data banks" Communications of ACM 13:6, pp 377-387].


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Gartner defines RDBMS as a database management system that incorporates the relational data model, normally including a Structured Query Language (SQL) application programming interface.
IBM AND ORACLE TIE FOR TOP POSITION ON LICENSE REVENUE by Online Product News
With dozens or hundreds of normalized tables in a database, active archiving preserves data from even the most complex relational data model, maintaining its relational integrity with 100 percent accuracy.
Database strategy: active archiving by Cash, Lisa / Computer Technology Review
E[acute accent]Gartner defines RDBMS as a database management system that incorporates the relational data model, normally including a Structured Query Language (SQL) application programming interface.
Gartner Says Worldwide Relational Database Market Increased 8 Percent ... by Business Wire
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