Display the employee number and job id for all employees whose salary is smaller than any salary of those employees whose job title is MK_MAN
select employee_id, job_id from employees where salary < ( select min ( salary ) from employees where job_id = 'MK_MAN' )
Show me salaries for those employees
select salary from employees where salary < ( select min ( salary ) from employees where job_id = 'MK_MAN' )