Relational data model

<database> (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


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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relational algebra
relational calculus
relational database
relational database management system
E. F. Codd
relational algebra
relational model
relational DBMS
relational language
relational model
relatively prime