You have a doubt to add a primary key in your table or not? Or is it mandatory to add the primary key?
See, do you know why we use the primary key?
- We use primary key to restrict the data repetition so that our memory storage will not be wasted.
- If You need your table to be joinable on something that time we need primary key
- If you want your table to be clustered, you need some kind of a primary key.
But in database we can create a table without adding the primary key, but experts always preferred tables with primary key.for these facilities.
I hope this answer will help you out ,