Each record in the table department represents a department which might hire some employees. Each record in the table employee represents an employee who works for one of the departments from the table department $.$ The salary of each employee is known $.($ However $,$ the locations of the departments are not relevant here $.)$ Write an SQL query that returns a table comprising all the departments $()$ in the table department that hire at least one employee $,$ the number of people they employ and the sum of salaries in each department $.$ The table should be ordered by $($ increasing order $).$ For example $,$ for :