What Is 4nf?

1.	What Is 4nf?
Answer» A relation SCHEMA R is said to be in 4NF if for every Multivalued dependency X Y that HOLDS over R, one of following is true X is subset or equal to (or) XY = R. X is a super key. A relation schema R is said to be in 4NF if for every Multivalued dependency X Y that holds over R, one of following is true

Answer»

A relation SCHEMA R is said to be in 4NF if for every Multivalued dependency X Y that HOLDS over R, one of following is true

A relation schema R is said to be in 4NF if for every Multivalued dependency X Y that holds over R, one of following is true

Discussion