New Click here to Enroll for SIDBI MSME Expert Classes by Experts

    Register

    Question

    A is the only candidate key. Then how many superkey

    possible with R(A,S,C,D)
    A 4 Correct Answer Incorrect Answer
    B 8 Correct Answer Incorrect Answer
    C 16 Correct Answer Incorrect Answer
    D 32 Correct Answer Incorrect Answer
    E 2 Correct Answer Incorrect Answer

    Solution

    A has to be taken for every case so we have 2 choices to take b,c ,d each or not so 2*2*2=8  

    Practice Next