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Technical Discussion :: DBMS

20. What is 5NF?

Answer:

A Relation schema R is said to be 5NF if for every join dependency {R1, R2, ..., Rn} that holds R, one the following is true
> Ri = R for some i.
> The join dependency is implied by the set of FD, over R in which the left side is key of R.

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