Question

TRUE

FALSE
Transitive functional dependency means a FD X --> Z that can be derived from two FDs X --> Y and Y --> Z

Answer 1

A transitive functional dependency means that there is a dependency between X and Y, and another dependency between Y and Z, but it does not imply that there is a direct dependency between X and Z.

Step-by-step explanation:

A transitive functional dependency is a dependency that can be derived from two or more other dependencies.

In the statement 'if X, then Y', the relationship between X and Y is not always symmetrical. X is always sufficient for Y, meaning that if X is true, then Y must also be true. However, Y is not always necessary for X, meaning that there can be other factors that result in X being true besides Y being true.

Therefore, the statement in the question is FALSE. A transitive functional dependency means that there is a dependency between X and Y, and another dependency between Y and Z, but it does not imply that there is a direct dependency between X and Z.