Consider R(A1,A2,A3,A4,A5, A6) with FDs: F = {A1 → A5, A2 → A1, A3A4 → A5, A5A6 → A2, A3 → A4, A5 → As} Which of the following statements is CORRECT? Note: "F =X→ Y" means the FD X→ Y follows from F. Select one: O FHA3 → A1 O All of the four statements None of the four statements O F=A2 → A3 FEA1 - A4 O FE A5 - A4

Consider R(A1,A2,A3,A4,A5, A6) with FDs: F = {A1 → A5, A2 → A1, A3A4 → A5, A5A6 → A2, A3 → A4, A5 → As} Which of the following statements is CORRECT? Note: "F =X→ Y" means the FD X→ Y follows from F. Select one: O FHA3 → A1 O All of the four statements None of the four statements O F=A2 → A3 FEA1 - A4 O FE A5 - A4

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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Question

35 of 40
Consider R(A1,A2,A3,A4,A5, A6) with FDs:
F = {A1 → A5, A2 → A1, A3A4 → A5, A5A6 → A2, A3 → A4, A5 → As}
Which of the following statements is CORRECT?
Note: "F = X → Y" means the FD X → Y follows from F.
Select one:
OFHA3 → A1
All of the four statements
None of the four statements
O F=A2 → A3
FEA1 → A4
O F= A5 → A4

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