(Choose 1 answer)
Suppose relations: R(A,B) and S(B,C,D)
see figure)(
Compute the full outer join of R and S.where the condition is: R.A>S.B AND R.B-S.C. Which of the following tuples of R or S is dangling (and therefore needs to be padded in the outer-join)?
A. (4.6.8) of S.
B. (4.7.9) of S.
C. (2.4.6) of S.
D. (3.4) of R.
R
1
2
3
4
5
6
S
2
4
6
8
4
4
6
7
9
Exit 33
