unique key

noun

A set of one or more than one columns or fields of a table that uniquely identifies a record in a database table.

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Meanings

noununique key (plural unique keys)

plural unique keys

  1. computingA set of one or more than one columns or fields of a table that uniquely identifies a record in a database table.
Cite this entry
APA

unique key. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/unique%20key

MLA

“unique key.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unique%20key. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “unique key,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/unique%20key.

Source: unique key on Wiktionary, CC BY-SA 4.0.