dictionary · eo1.org

primary key

Fetched 2026-10-26 (cache).

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Noun

  1. {{lb|en|computing|databases}} In the design of a [[database]] [[table]], the primary key (abbreviated [[PK]]) is selected among the non-empty set of [[candidate key]]s. The PK is a [[column]] (or an [[irreducible]] group of columns) able to identify every [[row]] of the table.

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