Consider the following functional dependencies in a database.
Date_of_Birth $\to$ Age
The relation (Roll_number, Name, Date_of_birth, Age) is
@ Prateek kumar but there may be other fd that can be indirectly derived from the attribute not present in the table thus it is always advisable to find all the possible fd's by using the closure method and see which are applicable to the given relation .
There is one more problem. Ppl who have...