1)SELECT LAST_NAME, date_format(HIRE_DATE, '%e-%b-%y') as "HIRE_DATE"
FROM EMPLOYEES
WHERE LAST_NAME <> 'Zlotkey' and HIRE_DATE IN
(SELECT HIRE_DATE
FROM EMPLOYEES
WHERE DEPARTMENT_ID=80);
2)SELECT EMPLOYEE_ID, LAST_NAME, SALARY
FROM EMPLOYEES
GROUP BY EMPLOYEE_ID
having salary>(select avg(salary)
from employees)
ORDER BY SALARY ASC;