2. Questions Bank
  3. 10th Class
  4. Computers Science
  5. Database Management 2

10th Class Computers Science Database Management 2 Question Bank MCQs - Data Base Management System

  • question_answer
    When primary key is made up of two or more columns, then it is called a ..............primary key.

    A) Mixed            

    B) Reference

    C) Composite         

    D) Compost

    Correct Answer: C

    Solution :

    [c]


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