The functional dependency R → S means that the value of S can be determined when we are given a value of R.
A. True
B. False
Answer: Option A
Solution (By Examveda Team)
Option1: TrueThe statement is correct. In a functional dependency R ? S, the value of S can indeed be determined when we are given a value of R. This is a fundamental concept in the relational model of databases.
Option2: False
This statement is incorrect. In a functional dependency R ? S, the value of S is dependent on the value of R. Therefore, the statement that the value of S cannot be determined when we are given a value of R is false.
Conclusion: The correct option is Option1: True. In a functional dependency R ? S, the value of S can be determined when we are given a value of R. This is a key concept in the relational model and normalization of databases.
This Question Belongs to Database >> The Relational Model And Normalization
Related Questions on The Relational Model and Normalization
A. A → B.
B. A → C.
C. A → (B,C).
D. (B,C) → A.
A. normal forms.
B. referential integrity constraints.
C. functional dependencies.
D. None of the above is correct.
A relation is in this form if it is in BCNF and has no multivalued dependencies:
A. second normal form.
B. third normal form.
C. fourth normal form.
D. domain/key normal form.
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