Recent questions tagged relations

3 votes
2 answers
33
1 votes
1 answer
35
can we make weak entity type as composite attribute of another weak entity type?
0 votes
1 answer
37
Let A={x,y,z}. The number of relations containing (x,y) and (x,z) which are reflexive and symmetric but not transitive is?
2 votes
1 answer
38
1 votes
2 answers
40
Find inverse in a*b=a+b-ab for all a,b belongs to Q-{-1}. where Q is a rational number?please explain how the inverse will satisfy the equation of inverse(a*b=b*a=e)
0 votes
0 answers
41