Question

explain the concept of foreign key. How is it different from candidate key? ​

Answer 1

Candidate Key - The candidate keys in a table are defined as the set of keys that is minimal and can uniquely identify any data row in the table. ... Foreign Key - A foreign key is an attribute value in a table that acts as the primary key in another another. Hence, the foreign key is useful in linking together two tables.

hope it's helpful to you

Answer 2

Answer:

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