Karl Jones: Created page with "In computer science, '''relational algebra''' is a family of algebras with a [[well-founded semantics used for modelling the data stored in Relational database|relationa..."

2016-09-07T19:08:22Z

Created page with "In [[computer science, '''relational algebra''' is a family of algebras with a [[well-founded semantics]] used for modelling the data stored in Relational database|relationa..."

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In [[computer science, '''relational algebra''' is a family of algebras with a [[well-founded semantics]] used for modelling the data stored in [[Relational database|relational databases]], and defining queries on it.

== Description ==

The main application of relational algebra is providing a theoretical foundation for relational databases, particularly [[Query language|query languages]] for such databases, chief among which is [[SQL]].

It was first described by [[Edgar F. Codd]] while working for IBM.

== See also ==

* [[Cartesian product]]
* [[D (data language specification)]]
* [[D4 (programming language)]] (an implementation of D)
* [[Database]]
* [[Logic of relatives]]
* [[Object-role modeling]]
* [[Projection (mathematics)]]
* [[Projection (relational algebra)]]
* [[Projection (set theory)]]
* [[Query language]]
* [[Relation]]
* [[Relation (database)]]
* [[Relation algebra]]
* [[Relation composition]]
* [[Relation construction]]
* [[Relational calculus]]
* [[Relational database]]
* [[Relational model]]
* [[SQL]]
* [[Theory of relations]]
* [[Triadic relation]]
* [[Tutorial D]]
* [[Tuple relational calculus]]
* [[Well-founded semantics]]

== External links ==

* [https://en.wikipedia.org/wiki/Relational_algebra Relational algebra] @ Wikipedia

[[Category:Computer science]]
[[Category:Databases]]
[[Category:Mathematics]]

Relational algebra - Revision history

Karl Jones: Created page with "In computer science, '''relational algebra''' is a family of algebras with a [[well-founded semantics used for modelling the data stored in Relational database|relationa..."