What is meant by the term division compatibility?

QUESTION: What is meant by the term division compatibility?   [signinlocker] SOLUTION   In order to divide two relations, R and S must be configured such that the set of attributes of S must be a subset of the attributes of R....

What is a Cartesian product operation?

QUESTION: What is a Cartesian product operation?   [signinlocker] SOLUTION   The Cartesian product operation is used to combine tuples from any two relations in a combinatorial fashion. [/signinlocker]

What constitutes union compatibility?

QUESTION: What constitutes union compatibility?   [signinlocker] SOLUTION   Two relations R and S are union-compatible if they have the same number of attributes and corresponding attributes in R and S share the same domain....