The Alpha language was the original database language proposed by

Edgar F. Codd Edgar Frank "Ted" Codd (19 August 1923 – 18 April 2003) was a British computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases and relational database ...

, the inventor of the

relational database A relational database (RDB) is a database based on the relational model of data, as proposed by E. F. Codd in 1970. A Relational Database Management System (RDBMS) is a type of database management system that stores data in a structured for ...

approach. It was defined in Codd's 1971 paper "A Data Base Sublanguage Founded on the Relational Calculus". Alpha influenced the design of QUEL. It was eventually supplanted by SQL (which is however based on the

relational algebra In database theory, relational algebra is a theory that uses algebraic structures for modeling data and defining queries on it with well founded semantics (computer science), semantics. The theory was introduced by Edgar F. Codd. The main applica ...

defined by Codd in "Relational Completeness of Data Base Sublanguages"Codd, E.F., "Relational Completeness of Data Base Sublanguages", IBM Research Laboratory, RJ987, 1972.), which

IBM International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American Multinational corporation, multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is ...

developed for its first commercial relational database product.

References

Query languages Declarative programming languages SQL {{Compu-lang-stub

See also

References