Let R(A, B, C, D, E) be a relation with the set of FD's: F = {D → C, C → D, D →A, C –→ A, E → C, E –→ A, E → B, B → C}. Which of the following statements is NOT correct? Select one: O G= {D → C, C → D, D → A, E → B, B → C} is a canonical cover (minimal basis) of F. O H = {D → C, C → D, C → A, E → B, B → C} is a canonical cover of F.

Let R(A, B, C, D, E) be a relation with the set of FD's: F = {D → C, C → D, D →A, C –→ A, E → C, E –→ A, E → B, B → C}. Which of the following statements is NOT correct? Select one: O G= {D → C, C → D, D → A, E → B, B → C} is a canonical cover (minimal basis) of F. O H = {D → C, C → D, C → A, E → B, B → C} is a canonical cover of F.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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