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单词 primary key
释义

primary key

English

Noun

primary key (plural primary keys)

  1. (computing, databases) 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.
  • candidate key
  • foreign key

Translations

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