<prompt> Kuandika SQL query orodha nje ya majina ya kipekee idara katika database na ni wafanyakazi wangapi kila mmoja ana.  <response>: Heres a possible SQL query for that:SELECT department_name, COUNT as num_employeesFROM employeesGROUP BY department_name;This query selects the department_name column and counts the number of employees COUNT in each department. The GROUP BY clause groups the results by the department_name column, so we get one row per department with the corresponding number of employees num_employees. 