Select
	case
		grouping(E.LastName)
		when 0 then E.LastName
		else 'Wszystcy robole'
	end,
	case
		grouping(O.ShipCountry)
		when 0 then O.ShipCountry
		else 'Wszystkie kraje'
	end,
		count(O.OrderID) as 'ile'
from
	Employees as E join Orders as O on E.EmployeeID = O.EmployeeID
group by
	grouping sets( (E.LastName), (O.ShipCountry), (E.LastName, O.ShipCountry))