What are the full names of the top 3 employees who handled the highest number of sales?
full names of employees = FirstName, MiddleInitital, LastName; highest number of sales refers to MAX(COUNT(SalesID));
SELECT T1.FirstName, T1.MiddleInitial, T1.LastName FROM Employees AS T1 INNER JOIN Sales AS T2 ON T1.EmployeeID = T2.SalesPersonID GROUP BY T2.SalesPersonID, T1.FirstName, T1.MiddleInitial, T1.LastName ORDER BY COUNT(T2.SalesID) DESC LIMIT 3