Question

The rule which states that addition of same attributes to the right side and left side will result in other valid dependency is classified as _______ .

• A. Augmentation rule
• B. Inference rule
• C. Referential rule
• D. Reflexive rule

Hint:

Understanding functional dependency rules like the Augmentation rule is key in relational database theory for ensuring data consistency and reducing redundancy.

Answer 1

The Correct Option is A

The Augmentation Rule in functional dependencies states that if \( X \to Y \), then for any set of attributes \( Z \), we have \( XZ \to YZ \). This means adding the same attribute to both sides of the dependency results in another valid functional dependency.