SELECT dept_id, INSTR(last_name, ‘A’), SUM(salary) FROM employees GROUP BY dept_id;
SELECT dept_id, STDDEV(last_name), SUM(salary) FROM employees GROUP BY dept_id;
SELECT dept_id, MAX(last_name), SUM(salary) FROM employees GROUP BY dept_id;
SELECT dept_id, LENGTH(last_name), SUM(salary) FROM employees GROUP BY dept_id;