Question

It is necessary to set a foreign key in a table. true or false​

Answer 1

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True.

Foreign keys play an essential role in database design. ... A table may have multiple foreign keys, and each foreign key can have a different parent table. Each foreign key is enforced independently by the database system. Therefore, cascading relationships between tables can be established using foreign keys.

Answer 2

Answer:

Foreign keys play an essential role in database design. ... A table may have multiple foreign keys, and each foreign key can have a differentparent table. Each foreign key is enforced independently by the database system. Therefore, cascadingrelationships between tables can be established using foreign keys.