DataBase Management System → Keys in DBMS MCQ → MCQ Details
MCQ Practice Single Best Answer Topic: Keys in DBMS MCQ

Q Which one of the following cannot be taken as a primary key ?

Question ID
#2629
Subchapter
Keys in DBMS MCQ
Action
Choose one option below

Choose Your Answer

Click an option to check whether your answer is correct.

  • A Id ✔ ✖
  • B Register number ✔ ✖
  • C Dept_id ✔ ✖
  • D Street ✔ ✖
Correct Answer: D

Explanation

Street is the only attribute which can occur more than once.

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