Question: Database: (a) Provide the simplest example of R that is in BCNF by listing its attributes and functional dependencies. (b) It is known that for

Database:

(a) Provide the simplest example of R that is in BCNF by listing its attributes and functional dependencies.

(b) It is known that for R(A,B,C,D,E):

1. R has exactly 2 candidate keys.

2. AB is the first candidate key.

3. C and D are non-prime attributes.

4. ACE is not a superkey.

What is the second candidate key besides AB?

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