Engineering Concepts
Wednesday, 6 August 2014
What is 3NF?
A relation schema R is in 3NF if it is in 2NF and for every FD X A either of the following is true
Ø
X is a Super-key of R.
Ø
A is a prime attribute of R.
In other words, if every non prime attribute is non-transitively dependent on primary key.
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