13
Answer (Choose 1 answer)
Compute the union of the relations R(A,B,C), S(A,B,C) (see figure):Which of the following tuples DOES NOT appear in the result?
Α. (4.2.3)
Β. (1.5.4)
C. (1,2.3)
D. (4,5,6)
1
4
4
2
1
2
2
5
5
2
3
3
2
2
4
1
5
5
5
2
3
4
6
3
3
6
Ext
