Explanation:Cartesian product is the multiplication of all the values in the attributes. 6. The _______operation performs a set union of two “similarly structured” tables
A. Union
B. Join
C. Product
D. Intersect
Answer:A
Explanation:Cartesian product is the multiplication of all the values in the attributes. 6. The _______operation performs a set union of two “similarly structured” tables
A. Union B. Join C. Product D. Intersect
Explanation:Union just combines all the values of relations of same attributes. 7. The most commonly used operation in relational algebra for projecting a set of tuple from a relation is