Question: Very good!  Can display a list of all of the employees first names which contain a letter Z in their first name? | which colums to return? | Oh thanks! You went ahead and added the last name and city!  Could you also add to this list which country each of these people live in?
SQL: SELECT T1.first_name ,  T1.last_name ,  T3.city ,T3.COUNTRY_ID FROM employees AS T1 JOIN departments AS T2 ON T1.department_id   =   T2.department_id JOIN locations AS T3 ON T2.location_id   =   T3.location_id WHERE T1.first_name LIKE '%z%'