C++ Interview Questions and Answers


What is Boyce Codd Normal form?

A relation schema R is in BCNF with respect to a set F of functional dependencies
if for all functional dependencies in F+ of the form a->b, where a and b is a
subset of R, at least one of the following holds:

* a->b is a trivial functional dependency (b is a subset of a)

* a is a superkey for schema R

Posted by:Richards