what role does Koby play?
select t1.role_description from roles as t1 join employees as t2 on t1.role_code = t2.role_code where t2.employee_name = "Koby"
what is the role code
select t1.role_code from roles as t1 join employees as t2 on t1.role_code = t2.role_code where t2.employee_name = "Koby"