Question

Your teacher asked you to assign a PRIMARY KEY for the table. Note that ID is inserted by default and hence can't be a PRIMARY KEY. Which column header will you assign the PRIMARY KEY?​

Answer 1

Explanation:

How do I find the primary key in a table?

Every table can have (but does not have to have) a primary key. The column or columns defined as the primary key ensure uniqueness in the table; no two rows can have the same key. The primary key of one table may also help to identify records in other tables, and be part of the second table's primary key

Answer 2

Answer:

Roll Number Column

Explanation:

Because the Roll number for every student is different