A constraint between two attributes is called a(n)
Correct answer: C. Functional dependency
- A. Functional relation
- B. Attribute dependency
- C. Functional dependency
- D. Functional relation constraint
Explanation
A functional dependency is a constraint between two sets of attributes in a relation from a database. It specifies that a particular value (or set of values) in one attribute (determinant) uniquely determines another value (or set of values) in another attribute (dependent). This means that if you know the value of the determinant, you can always find the corresponding value of the dependent attribute. Functional dependencies are essential for ensuring data integrity and reducing data redundancy in a relational database
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