2 votes 2 votes 1. How many super key is possible if (a,bc,cd) is candidate key and R(ABCDEF) #DOUBT When we use veen digram why we are taking only intersections part only ??? Need help please explain .. Databases databases relational-algebra database-normalization transaction-and-concurrency + – air1ankit asked Oct 26, 2017 air1ankit 561 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
2 votes 2 votes Easy way to understand.. We are not actually taking the intersection part but we are omitting the intersection so that we have union of all super keys possible.. I hope you understand vamp_vaibhav answered Nov 17, 2017 vamp_vaibhav comment Share Follow See all 2 Comments See all 2 2 Comments reply air1ankit commented Nov 17, 2017 reply Follow Share got it !, and if you use Venn diagram and then apply same formula then we get more accuracy but grate work thanks 0 votes 0 votes Jony Bhatt commented Nov 1, 2018 reply Follow Share How to calculate p(a intersection b) plz solve the question 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes 44 is the answer a2^5+bc2^4+cd2^4-abc2^3-acd2^3-bcd2^3+abcd2^2 32+32-8-8-8+4 68-24 44 akshat sharma answered Oct 26, 2017 akshat sharma comment Share Follow See 1 comment See all 1 1 comment reply air1ankit commented Oct 26, 2017 reply Follow Share Can u explain using digram.. 0 votes 0 votes Please log in or register to add a comment.
