(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. (70.t)
B. (10.x)
C. (30.y)
D. (50.z)
R
X
X
Z
Z
Z
40
60
60
80
10
30
y
Z
t
50
70
S
50
50
70
90
Q: 42
