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Question 121Asked in BPSC TRE 2.0 (2023) Computer Science Class 11-12

An attribute of one table matching the primary key of another table is called as

  1. Aforeign key
  2. Bsecondary key
  3. Ccandidate key
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (A) foreign key

Explanation

A foreign key is an attribute in one table that refers to the primary key of another table. It links the two tables and enforces referential integrity.

From BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper

This is question 121 of BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.