Computers and Technology, 30.01.2021 06:00, jefarmjefarm9659

Considere a relação R (A, B, C, D, E) e o conjunto de dependências G = {{A, B} → {D},{B, C} → {A},{D, E} → {C}. Assinale verdadeiro ou falso para cada uma das alternativas abaixo e justifique. a) ABC é chave candidata.
b) AB é chave candidata.
c) DE é chave candidata.
d) DBE é chave candidata.

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Considere a relação R (A, B, C, D, E) e o conjunto de dependências G = {{A, B} → {D},{B, C} → {A},{D...