The unique column used to identify the record is called

Question

what is answer

Answer 1

You haven't even started the SQL course yet. That's a good place to start before asking us to teach it to you.

https://www.sololearn.com/Course/SQL/

Answer 2

Please delete this question or the other one you have. You have posted the question twice.

Answer 3

Try Primary with all lowercase- primary, It works for me.