Question

importance of secondary keys in databases​

Answer 1

Explanation:

Secondary Key is the key that has not been selected to be the primary key. However, it is considered a candidate key for the primary key. Therefore, a candidate key not selected as a primary key is called secondary key. Candidate key is an attribute or set of attributes that you can consider as a Primary key.

Answer 2

Answer:

Secondary Key is the key that has not been selected to be the primary key. However, it is considered a candidate key for the primary key.

Therefore, a candidate key not selected as a primary key is called secondary key. Candidate key is an attribute or set of attributes that you can consider as a Primary key.

hope it helps...