(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. (4,7,9) of S.
B. (2.4.6) of S.
C. (4,6,8) of S.
D. (3.4) of R.
R
1
3
5
2
4
6
S
2
4
6
4
6
8
4
7
9
E 47
vat fini
Finish
