how to display employee names starting with a and then b in sql

Question

i want to display the employee names which having names start with a and b ,it should be like list will display employees with \'a\' as a first letter and then the \'b\' as a

Answer 1

From A to Z:

select employee_name from employees ORDER BY employee_name ;

From Z to A:

select employee_name from employees ORDER BY employee_name desc ;