sql problem -1 (joins)
Apr 30, 2024
Given the CITY and COUNTRY tables, query the sum of the populations of all cities where the CONTINENT is ‘Asia’.
Note: CITY.CountryCode and COUNTRY.Code are matching key columns.
Input Format
The CITY and COUNTRY tables are described as follows:
SELECT SUM(city.population)
FROM city
JOIN country ON city.countrycode = country.code
WHERE country.continent = ‘Asia’;