Why or why not?

List the premium customers who is not using the service within the last one week.if you have these tables: 1-'Premuim_USER'columns: Customer_ID, post_paid.2-'calls'columns: called_number, Customer_ID, call_date, call_time_started, Call_time_ended, transaction_no.

Increment the salaries by 5% and add a comm. of 300 to the existing comm, and changing the clerk to jobs of all salesman whose salary is more than or equal to 1500.