1 votes 1 votes R (A1, A2, ….An) and every (n-2) attributes of R forms a candidate key. How many super keys are there in R? answer = $_{n-2}^{n}\textrm{C} + n +1$ iam not getting how to apply set theory concept here Databases databases + – sumit goyal 1 asked Jan 22, 2018 sumit goyal 1 582 views answer comment Share Follow See all 8 Comments See all 8 8 Comments reply Show 5 previous comments MiNiPanda commented Jan 22, 2018 reply Follow Share Ooh okay.. No nothing is coming to my mind right now on how to use set theory.. 1 votes 1 votes hacker16 commented Jan 22, 2018 reply Follow Share https://gateoverflow.in/196257/no-of-super-key 0 votes 0 votes sumit goyal 1 commented Jan 22, 2018 reply Follow Share hacker16 i have same query there 0 votes 0 votes Please log in or register to add a comment.
