select b.emp_no,(b.salary-a.salary) growth from (select e.emp_no,s.salary from employees e left join salaries s on e.emp_no=s.emp_no and e.hire_date=s.from_date) a join (select e.emp_no,s.salary from employees e left join salaries s on e.emp_no=s.emp_no where s.to_date='9999-01-01') b on a.emp_no=b....
