INTERVIEW QUESTIONS DATABASE RELATIONAL DATABASE DETAILS

Question: 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.

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.
Source: CoolInterview.com

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