A functional dependency is always an equation.
A. True
B. False
Answer: Option B
Solution (By Examveda Team)
Option1: True- In the context of the relational model and normalization, a functional dependency is a relationship between two attributes in a relation. It is represented as X -> Y, where X determines Y uniquely. This relationship is not necessarily an equation but rather a logical statement about the data.
Option2: False
- A functional dependency is not always an equation. It is a statement about the relationship between attributes in a relation, indicating that the value of one attribute uniquely determines the value of another. It is a fundamental concept in database normalization.
Conclusion:
- The correct option is False. A functional dependency is not always an equation but a logical relationship between attributes in a relation.
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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