Answer (Choose 2 answers)
Suppose relation R(A,B) and S(B.C.D) (see figure).Compute the R right outer join S.where the condition is: R.B = S.B.Then identify 2 tuples of R that do not appear in the computed result.
A. (50,z)
10
30
50
70
S
R
60
80
50
50
90
X
y
Z
t
X
Z
Z
Z
