What type of integrity constraint does not allow someone to create an order for a non-existent customer?
A)Relational integrity constraint
B)Business-critical integrity constraint
C)Information-critical integrity constraint
D)None of the answers is correct

Question

Quizplus · Accepted Answer

The relational integrity constraint ensures that any foreign key value used in one table must also exist in another table's primary key. In this case, the order table may have a foreign key column for customer ID, and the relational integrity constraint ensures that the value entered for customer ID must already exist in the customer table's primary key column.

What Type of Integrity Constraint Does Not Allow Someone to Create