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GATE | GATE-CS-2005 | Question 78
  • Last Updated : 13 Sep, 2014

Consider a relation scheme R = (A, B, C, D, E, H) on which the following functional dependencies hold: {A–>B, BC–>D, E–>C, D–>A}. What are the candidate keys of R?
(A) AE, BE
(B) AE, BE, DE
(C) AEH, BEH, BCH
(D) AEH, BEH, DEH


Answer: (D)

Explanation: See question 3 of https://www.geeksforgeeks.org/database-management-systems-set-10/

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