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GATE | GATE-CS-2006 | Question 70

  • Last Updated : 25 Nov, 2020

The following functional dependencies are given:

AB \rightarrow  CD, AF \rightarrow  D, DE \rightarrow  F, C \rightarrow G , F \rightarrow  E, G \rightarrow  A

Which one of the following options is false?
(A) CF+ = {ACDEFG}
(B) BG+ = {ABCDG}
(C) AF+ = {ACDEFG}
(D) AB+ = {ABCDG}


Answer: (C)

Explanation: See question 4 of http://www.geeksforgeeks.org/database-management-systems-set-9/

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