A FOREIGN KEY constraint can be added to the column of a table to ensure that the referenced data value actually exists in the other table.

Question

A FOREIGN KEY constraint can be added to the column of a table to ensure that the referenced data value actually exists in the other table.​

Quizplus · Accepted Answer

Adding a foreign key constraint ensures that the referenced data value actually exists in the other table. If the referenced data value is not present in the other table, the foreign key constraint will prevent inserting the data into the column.

A FOREIGN KEY Constraint Can Be Added to the Column