Relation (database)
id:
relation-database-248-12785600
title:
Relation (database)
text:
In database theory, a relation, as originally defined by E. F. Codd, is a set of tuples (d1,d2,...,dn), where each element dj is a member of Dj, a data domain. Codd's original definition notwithstanding, and contrary to the usual definition in mathematics, there is no ordering to the elements of the tuples of a relation. Instead, each element is termed an attribute value. An attribute is a name paired with a domain. An attribute value is an attribute name paired with an element of that attribute
brand slug:
wiki
category slug:
encyclopedia
description:
Set of tuples consisting of values indexed by attributes
original url:
https://en.wikipedia.org/wiki/Relation_(database)
date created:
date modified:
2024-04-01T08:26:16Z
main entity:
{"identifier":"Q277521","url":"https://www.wikidata.org/entity/Q277521"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/7/7c/Relational_database_terms.svg","width":984,"height":460}
fields total:
13
integrity:
15