Answer (Choose 1 answer)
The table R(X,Y) currently has the following tuples (note there are duplicates). The relation S(A,B,C) has the following tuples:(See picture)
Which is the result when we execute the following query:
SELECT * FROM R
UNION
SELECT * FROM S
A. There is an error
B. The output has 16 rows
C. The output has 17 rows
D. The output has 15 rows
XY
12
12
1 2 3
113
23
34
34
41
41
41
42
ABC
214
235
241
324
336
ni
Exit 42
