Referential integrity is the assurance that a foreign-key value in one table has a matching primary-key value in a related table.

Name: Referential integrity is the assurance that a foreign-key value in one table has a matching primary-key value in a related table.
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Referential integrity ensures that relationships between tables remain consistent, meaning every foreign key in a child table must have a corresponding primary key in the parent table.

Referential Integrity Is the Assurance That a Foreign-Key Value in One