SELECT first_name||' '||last_name, hire_date, trunc((sysdate-hire_date)/365,2) STAJ, MIN(salary) FROM(
SELECT e.first_name, e.last_name, e.SALARY, e.hire_date, trunc((sysdate-e.hire_date)/365,2) STAJ FROM employees e, job_history jh
WHERE trunc((sysdate-hire_date)/365,2)>=10
AND e.employee_id=jh.employee_id
AND UPPER(jh.job_id) = UPPER('it_prog')
ORDER BY e.SALARY DESC)
WHERE rownum <= 3
GROUP BY first_name, last_name, hire_date;