Relational Interview Question:

Explain 3NF?

Submitted by: Administrator

A relation schema R is in 3NF if it is in 2NF and for every FD X --> A either of the following is true

► X is a Super-key of R.
► A is a prime attribute of R.

In other words, if every non prime attribute is non-transitively dependent on primary key.
Submitted by: Administrator