Referential integrity states that
A) the primary key cannot be null.
B) a foreign key cannot be inserted into a table unless it already exists as a primary key.
C) relational databases must reduce redundancy.
D) relational databases must manage data integrity, accuracy, and consistency.

Question

Quizplus · Accepted Answer

Referential integrity ensures that a foreign key in one table must match a primary key in another table, preventing orphaned records and maintaining data consistency.

Referential Integrity States That