SELECT
	*
FROM
	`Departement` de
	JOIN Employee e ON de.Id = e.DepartmentId
	AND Salayr.id = (SELECT Salary FROM Empaloyee ORDER BY  Salary DESC limit 1)


	SELECT
    	de.Departement Departement,e.Name Employee,e.Salayr  Salayr
    FROM
    	Departement de
    	JOIN (
    		SELECT MAX(Salayr) Salayr,DepartmentId FROM Empaloyee  GROUP BY DepartmentId
    	) ft ON de.id = ft.DepartmentId
    	JOIN Empaloyee e ON e.DepartmentId = ft.DepartmentId AND e.Salayr = ft.Salayr

select name from stu_score