Referential integrity means that all foreign keys in the many table must have a matching record in the parent table.

Name: Referential integrity means that all foreign keys in the many table must have a matching record in the parent table.
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Referential integrity ensures that data in a child table refers to existing data in a parent table. Foreign keys in the child table must match a primary key in the parent table.

Referential Integrity Means That All Foreign Keys in the Many