Consider R - A- B- C- D- E- F be a relation schema with the following dependenciesA - B- A - C- CD - E- CD - F- B - EWhich of the following is candidate key of R -

Closure of (AD)^ + ={A, B, C, D, E, F} Since AD is already a candidate nbsp; key. Hence superset of AD nbsp; i.e., ADE can not be candidate key. ...

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Consider R = ...

Question

Consider R = (A, B, C, D, E, F) be a relation schema with the following dependencies

$A \to B, A \to C, C D \to E, C D \to F, B \to E$

Which of the following is candidate key of R ?

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C o n s i d e r a r e l a t i o n R (A, B, C, D, E) w i t h f u n c t i o n a l d e p e n d e n c i e s : N u m b e r o f c a n d i d a t e s k e y i n a b o v e r e l a t i o n R i s______. F = (A E \to C, C D \to E, C \to A, C \to D, D \to E]

F = {A \to B C, C D \to E, B \to D, E \to A}

F = {A B \to C D E F, C \to A, D \to B, C \to D, E \to F, B \to E}

A \to B C

B \to E

D \to A F

F \to C

B \to A D

C o n s i d e r a r e l a t i o n R (A, B, C, D, E) w i t h t h e f o l l o w i n g d e p e n d e n c i e s : M a x i m u m p o s s i b l e s u p e r k e y s o n r e l a t i o n R i s_______. F = (A \to B C, C \to A E, B \to D, C \to B)

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