Consider two tuples X and Y, the operation whose result includes tuples that are only in X but not in Y is classified as
A. square of relation X and Y
B. union of relation X and Y
C. intersection of relation X and Y
D. difference of relation X and Y
Answer:D
Consider two tuples X and Y, the operation whose result includes tuples that are only in X but not in Y is classified as
A. square of relation X and Y B. union of relation X and Y C. intersection of relation X and Y D. difference of relation X and Y