Open In App

UGC-NET | UGC NET CS 2014 Dec – II | Question 19

Like Article
Like
Save
Share
Report

The best normal form of relation scheme R(A, B, C, D) along with the set of functional dependencies F = {AB → C, AB → D, C → A, D → B} is
(A) Boyce-Codd Normal form
(B) Third Normal form
(C) Second Normal form
(D) First Normal form


Answer: (B)

Explanation: Here C-> A (prime attribute -> prime attribute) and D->A (prime attribute -> prime attribute) is partially dependents FDs . This type of FD must not be in BCNF and there is no problem with this type of FDs in 3NF.

Option (B) is correct.

Quiz of this Question


Last Updated : 22 Apr, 2020
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads