Question

write down the situation which you think primary key will be helpful​

Answer 1

I don't know

Explanation:

short form-idk

Answer 2

Row-level access  can help the primary key

Explanation:

• Each database table must have a primary key because it facilitates row-level access. If you desire, you can specify a primary key value.
• When a single property cannot uniquely identify a record in a table, we look for a set of attributes that can.
• Students, for example, are commonly given unique identity (ID) numbers, and all adults are given government-issued and uniquely identifiable Social Security numbers.