Question

Why do we need a primary key

Answer 1

Answer:

hope it helps u and plz follow me and brainlist me plz

Explanation:

A primary key is used to ensure data in the specific column is unique. You can only set constraints with primary keys, by setting a foreign key to another column which creates a relationship with the column that has the primary key set. A prime use of a primary key is in the case of a users table.

Answer 2

Answer:

Here's your answer

Explanation:

Hope it helps

Follow plz