Attribute B has functional dependency on attribute A - Database

Q.  Attribute B has a functional dependency on attribute A if, for each value of attribute A, there is exactly one value of attribute B. (Database)
- Published on 26 Aug 15

a. True
b. False

ANSWER: True

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    Discussion

  • Nirja Shah   -Posted on 02 Nov 15
    Functional dependency
    - Attribute B has a functional dependency on attribute A (i.e., A → B if, for each value of attribute A, there is exactly one value of attribute B).

    - If value of A is repeating in tuples then value of B will also repeat.

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