알고리즘
[hackerrank, SQL]African Cities
Baro_forest
2023. 2. 8. 13:33
Given the CITY and COUNTRY tables, query the names of all cities where the CONTINENT is 'Africa'.
Note: CITY.CountryCode and COUNTRY.Code are matching key columns.
Input Format
The CITY and COUNTRY tables are described as follows:


SELECT
city.name
FROM
city
JOIN country ON
country.code = city.countrycode
AND
country.continent = "Africa"
;