programming-examples/sql/JoinHRDatabase/11. Write a query in SQL to display the first name of all employees and the first name of their manager including those who does not working under any manager.sql

/*11. Write a query in SQL to display the first name of all employees and the first name of their manager including those who
 does not working under any manager.*/
SELECT E.first_name AS "Employee Name",  
   M.first_name AS "Manager"  
    FROM employees E   
      LEFT OUTER JOIN employees M  
       ON E.manager_id = M.employee_id;