What is the full name of employee who sold 1000 units?
full name of employee = FirstName, MiddleInitial, LastName; units refers to quantity; Quantity = 100
SELECT DISTINCT T2.FirstName, T2.MiddleInitial, T2.LastName FROM Sales AS T1 INNER JOIN Employees AS T2 ON T1.SalesPersonID = T2.EmployeeID WHERE T1.Quantity = 1000