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.BS.B. Then identify 2 tuples of R that do not appear in the computed result.
R
A. (70.t)
B. (10.x)
C. (50,z)
D. (30.y)
10
40
30
60
50
50
70
S
70
X
y
Z
t
X
Z
Z
Z
the exam.
Exit 18
