DISTINCT - From CITY Table -Descending --- Data Sorting

SESSION NAME: Data Sorting.

QUESTION NAME: DISTINCT - From CITY Table -Descending.

TABLE DESCRIPTION:

The "city" table consists of following fields:


1.ID
2. NAME
3. COUNTRYCODE
4. DISTRICT
5. POPULATION

Write a query to display the distinct "COUNTRYCODE"
from city table and the final resultant should display
country code in descending order

CODE:
select distinct countrycode from city order by COUNTRYCODE desc;