Relational Database Management System (RDBMS) Question:
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.
► X is subset or equal to (or) XY = R.
► X is a super key.
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