The Employee table consists of the following data fields: Employee ID, Employee Name, Employee Department, Employee Manager (EMP_ID of the Employee to whom the employee reports) and Employee DOH (Date of Hire). Using the following data table, answer the questions with appropriate SQL queries.

EMP_ID	EMP_NAME	EMP_DEPT	EMP_MANAGER	EMP_DOH
1	John	IT	9	05-08-2010
2	Alex	Finance	0	06-03-2008
3	Linda	IT	9	07-02-2010
4	Robin	Purchase	8	08-12-2010
5	Maki	Purchase	8	09-08-2012
6	Ross	Sales	7	10-05-2012
7	Reiki	Sales	2	11-02-2009
8	Anna	Sales	2	12-08-2011
9	Jena	IT	2	01-01-2008
10	Bonny	IT	9	01-01-2008

1. List the employees who are not managers (i.e. have no one reporting to them).

2. List the Managers having only one reportee.

3. In which month were the most employees hired?

4. What is the experience gap between the first employee and the latest?

5. Find the manager with the most reportees.

6. List managers who joined after all their reportees.

7. Which department has the most managers, and how many?