Problem 3 Consider the relation R = {A, B, C, D, E, F,G, H, I, J} and the set of functional dependencies F = {AB → C, A → DE, B → F, F → GH, D → IJ}. (i) What is the key for R, explain your answer (ii) Decompose R into 2NF, explain your answer (iii) Decompose R into 3NF, explain your answer

Problem 3 Consider the relation R = {A, B, C, D, E, F,G, H, I, J} and the set of functional dependencies F = {AB → C, A → DE, B → F, F → GH, D → IJ}. (i) What is the key for R, explain your answer (ii) Decompose R into 2NF, explain your answer (iii) Decompose R into 3NF, explain your answer

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

Problem 3
Consider the relation R
= {A, B,C, D, E, F,G, H, I, J} and the set of functional dependencies F =
{AB → C, A → DE, B → F, F → GH,D → IJ}.
(i) What is the key for R, explain your answer
(ii) Decompose R into 2NF, explain your answer
(iii) Decompose R into 3NF, explain your answer

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