2. Sample Papers
  3. 12th Class
  4. Computers Science

12th Class Computers Science Sample Paper SQL - Sample Paper-2

  • question_answer
    A .....................is a column of a relation which uniquely identifies each row of a table.

    A) Primary Key    

    B) Candidate Key

    C) Alternate Key     

    D) Foreign Key

    Correct Answer: A

    Solution :

    [a] Primary Key is a column of a relation which uniquely identifies each row of a table.


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