Define 3nf normal form, Database Management System

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3NF Normal Form

A relation schema R is in 3NF if it is in 2NF and for each 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 related on primary key.

 

 

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