Computer Sciences > GATE 2024 SET-1 > Functional Dependencies
The symbol → indicates functional dependency in the context of a relational database. Which of the following options is/are TRUE?
A
(X,Y) → (Z,W) implies X → (Z,W)
B
(X,Y) → (Z,W) implies (X,Y) → Z
C
((X,Y) → Z and W → Y) implies (X,W) → Z
D
(X → Y and Y → Z) implies X → Z

Correct : b,c,d

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Related Topics

database functional dependency relational database design GATE computer science 2024 gate cs 2024 set 1 functional dependency notation database theory relational algebra database dependencies

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