Consider a relation X with six attributes WYSMFE where WS is a composite primary key for X. Assume X has the following functional dependencies (X is one table with the attributes W, Y, S, М, F, E): 1.1) WS → YMFE S> ΥΜΕ E > M a) In what normal form is relation X? Explain why? WS is a primary key, b) Is it possible to decompose X into a number of relations in order to achieve a higher normal form? Explain how (this means using English sentences and a diagram showing the final relation(s)).

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ICS 311 - Database Management Systems
Assignment 5
Question 1: Normalization
Consider a relation X with six attributes WYSMFE where WS is a composite primary key for X.
Assume X has the following functional dependencies (X is one table with the attributes W, Y, S,
М, F, E):
1.1)
Ws > YMFE
S> ΥΜΕ
E > M
a) In what normal form is relation X? Explain why?
WS is a primary key,
b) Is it possible to decompose X into a number of relations in order to achieve a higher normal
form? Explain how (this means using English sentences and a diagram showing the final
relation(s)).
Transcribed Image Text:ICS 311 - Database Management Systems Assignment 5 Question 1: Normalization Consider a relation X with six attributes WYSMFE where WS is a composite primary key for X. Assume X has the following functional dependencies (X is one table with the attributes W, Y, S, М, F, E): 1.1) Ws > YMFE S> ΥΜΕ E > M a) In what normal form is relation X? Explain why? WS is a primary key, b) Is it possible to decompose X into a number of relations in order to achieve a higher normal form? Explain how (this means using English sentences and a diagram showing the final relation(s)).
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