Question

4. Referential integrity ensures that correct data should be
maintained in the tables.true or false​

Answer 1

Explanation:

Referential integrity requires that a foreign key must have a matching primary key or it must be null. This constraint is specified between two tables (parent and child); it maintains the correspondence between rows in these tables. It means the reference from a row in one table to another table must be valid.

Answer 2

TRUE

because Referential integrity is a way to ensure that matching records are not affected by update or delete operations on the tables .