_____ are especially useful when you are trying to determine what values in related tables cause referential integrity problems.
A) Inner joins
B) Outer joins
C) Equijoins
D) Theta joins

Question

Quizplus · Accepted Answer

Outer joins are useful in identifying null values in related tables, which can indicate referential integrity problems. Inner joins, equijoins, and theta joins only return matching values between tables and do not show null values.

_____ Are Especially Useful When You Are Trying to Determine