Japan Population HackerRank Solution

The problem at hand involves determining the total population of Japan. This is done by using data from a database that contains information about different cities and their respective populations.

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Here is the Japan Population HackerRank Solution HackerRank solution using CodeRankGPT:

The solution approach involves using a SQL query to select and sum up the population of all cities in Japan. The 'WHERE' clause is used to filter out cities that are not in Japan, and the 'SUM' function is used to add up the population of all the remaining cities.


SELECT SUM(POPULATION)
FROM CITY
WHERE COUNTRYCODE ='JPN'

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