0 votes 0 votes What would be the number of super keys for a relation R with “n” attributes? NOTE: Any attribute can be the candidate key. Databases databases + – nocturnal123 asked Oct 29, 2021 nocturnal123 287 views answer comment Share Follow See 1 comment See all 1 1 comment reply Vishal_kumar98 commented Oct 29, 2021 reply Follow Share It is the total number of not null subsets i.e $2^{n}-1$ 2 votes 2 votes Please log in or register to add a comment.
0 votes 0 votes let Relation R(a,b,c) so here three attribute and each attribute itself is a candidate key then all possible combination is a superkey which is all subset of set {a,b,c} only left null set so a,ab,ac,b,bc,c, abc which is like as (2^n)-1=7 Chandrabhan Vishwa 1 answered Oct 29, 2021 Chandrabhan Vishwa 1 comment Share Follow See all 0 reply Please log in or register to add a comment.
