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Find all the candidate keys for the relation schema r

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Reference no: EM132431007

Problem: Suppose we have a relational database schema R for students, consisting of the following attributes: I (student ID), C(cohort), D (department), N (credits needed), O (course) and G (grade) with the following functional dependencies: I →C, I→D, CD→N, IO→G. 

Required:

Question 1: Find all the candidate keys for the relation schema R.

Question 2: Determine the highest normal form (ie., no more than BCNF) the following decomposition is in. Justify your answer with a brief explanation.

R1(I, C, D, N) R2(I, O, G) 

Question 3: Come up with a decomposition scheme for R so that the tables are in Boyce-Codd normal form (BCNF) and prove it.

Reference no: EM132431007

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