Unique key
id:
unique-key-307-835192
title:
Unique key
text:
In relational database management systems, a unique key is a candidate key. All the candidate keys of a relation can uniquely identify the records of the relation, but only one of them is used as the primary key of the relation. The remaining candidate keys are called unique keys because they can uniquely identify a record in a relation. Unique keys can consist of multiple columns. Unique keys are also called alternate keys. Unique keys are an alternative to the primary key of the relation. In S
brand slug:
wiki
category slug:
encyclopedia
description:
Concept in relational database design
original url:
https://en.wikipedia.org/wiki/Unique_key
date created:
date modified:
2024-04-25T18:41:46Z
main entity:
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image:
fields total:
13
integrity:
14