No. of Super keys

a relation R(A,B,C,D,E,F,G,H) and set of functional dependencies are {CH->G,A->BC,B->CFH,E->A,F->EG } then how many possible super keys are present ? https://gateoverflow.in/42238/to-calculate-how-many-no-of-super-keys Is my approach right? ... BDE,BDF, EDF,AED,ADEF,ABDE,AFBE,AFBD,ABDEF}= 15 ways total = 15* 8 = 120 ways ....Can someone plz confirm it.... thank u
a relation R(A,B,C,D,E,F,G,H) and set of functional dependencies are {CH->G,A->BC,B->CFH,E->A,F->EG } then how many possible super keys are present ? https://gateoverflow.in/42238/to-calculate-how-many-no-of-super-keys Is my approach right? Since candidate keys are (AD) ... ,ADF,BDE,BDF, EDF,AED,ADEF,ABDE,AFBE,AFBD,ABDEF}= 15 ways total = 15* 8 = 120 ways ....Can someone plz confirm it.... thank u

asked
Jan 12, 2018
in Databases
Pawan Kumar 2
377 views