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....
QUESTION: Why does the relation create a result of a Projection operation on a relation that includes the primary key not contain fewer tuples than those in the source relation? [signinlocker] SOLUTION There are no duplicate tuples to eliminate since the...
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]
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....