Identify the candidate keys, Database Management System

Consider the following six relation schemes and their corresponding sets of functional dependencies. In each case identify

a. All the candidate keys

b. The highest normal form of the relation (2NF, 3NF, BCNF).

R1 (W, X, Y, Z) XY→Z, YW

R2 (K,L,M,N) KL→N, KM

R3 (P,Q,R,S) P→Q, QR, RS

R4 (T,U,V) T→U, UT, TV

R5 (W,X,Y,Z) Z→W, YZW, WYXZ

R6 (A,B,C,D) AB→D, AC→D

 

Posted Date: 4/6/2013 3:06:41 AM | Location : United States







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