Question

Which of the followings has the same meaning as referential integrity constraint?

Select one:
a. Foreign key constraint
b. Attribute based constraint
c. Tuple based constraint
d. Entity based constraint

Answer 1

The correct answer is a Foreign Key Constraint. Referential integrity constraint ensures that relationships between tables are maintained in a database.

Step-by-step explanation:

The correct answer is a. Foreign key constraint. Referential integrity constraint ensures that relationships between tables are maintained in a database. It enforces that values in one table's foreign key column correspond to values in another table's primary key column. For example, if we have two tables: 'Customers' and 'Orders', the referential integrity constraint would ensure that every 'Order' record has a valid 'Customer' record associated with it through a foreign key relationship.