primary key

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primary key

noun primary keys

  1. In the design of a database table, the primary key (abbreviated PK) is selected among the non-empty set of candidate keys. The PK is a column (or an irreducible group of columns) able to identify every row of the table.

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noun key in database table

日本語主キー shu-kī
中文主鍵 /主键 zhǔjiàn, 主碼 /主码 zhǔmǎ
Françaisclé primaire
DeutschPrimärschlüssel
Ελληνικάπρωτεύον κλειδί protévon kleidí
Românăcheie primară
Русскийперви́чный ключ pervíčnyj ključ

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MLA

"primary key." Wiktionary, via Micwyn, micwyn.com/word/primary%20key. Accessed 6 Nov. 2026.

APA

primary key. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/primary%20key

Chicago

"primary key." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/primary%20key.

BibTeX
@misc{primary_key_2026,
  title = {primary key},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/primary%20key},
  urldate = {2026-11-06}
}