candidate key

Fetched 2026-10-26 (cache).

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Noun

1. {{lb|en|computing|databases}} In the design of a [[database]] [[table]], a [[column]] (or an irreducible group of them) able to identify every [[row]] of the table, having a unique value or set of values in each row. One of the candidate keys (abbreviated [[CK]]s) will be the [[primary key]].

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