Primary Key
A superkey which has a set of attributes whose values ensure the unique identification of the rows in a table. It is the principal means of identifying tuples in a relation. Its value is never, or at most rarely, changed.
- 품사: proper noun
- 분야/도메인: 소프트웨어
- 카테고리: 데이터베이스 애플리케이션
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