basic computer MCQ #2071

Primary key is:

basic computer MCQ #2071

  1. Question 1

    Q1. Primary key is:

    • A) Uniquely identifies each record
    • B) Cannot be repeated
    • C) Auto number is the example of primary key
    • D) All of these

    Answer: All of these

    Explanation: A primary key uniquely identifies each record in a database table, cannot contain duplicate values, and AutoNumber is a common example used in MS Access.