3. Decomposition – 3NF. Consider relation R=(ABCDEFG), F={AB→AC, BC→AE, AD→BCE}. (a) Is it in 3NF? Provide a good justification – must use textbook definition and reasons given must be specific. (b) Apply the 3NF decomposition algorithm to decompose R into a set of 3NF tables. If this cannot be done, explain why.

3. Decomposition – 3NF. Consider relation R=(ABCDEFG), F={AB→AC, BC→AE, AD→BCE}. (a) Is it in 3NF? Provide a good justification – must use textbook definition and reasons given must be specific. (b) Apply the 3NF decomposition algorithm to decompose R into a set of 3NF tables. If this cannot be done, explain why.

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

3. Decomposition – 3NF. Consider relation R=(ABCDEFG), F={AB→AC, BC→AE,
AD→BCE}.
(a) Is it in 3NF? Provide a good justification – must use textbook definition and reasons
given must be specific.
(b) Apply the 3NF decomposition algorithm to decompose R into a set of 3NF tables. If
this cannot be done, explain why.

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