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F+ is called as the ________ of F

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F+  is called as the ________ of F

(a) Closure

(b) Sum

(c) Cartesian product

(d) None of the mentioned

The question was posed to me in a job interview.

The origin of the question is Decomposition Using Functional Dependencies topic in portion Relational Database Design of RDBMS

1 Answer

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Best answer
Right choice is (a) Closure

Best explanation: F+ is called as the closure of F. It contains all the possible combinations of a functional dependency set in it.

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