Average Population of Each Continent – Hacker Rank Solution

Average Population of Each Continent - Hacker Rank Solution
Average Population of Each Continent – Hacker Rank Solution

Problem

Given the CITY and COUNTRY tables, query the names of all the continents (COUNTRY.Continent) and their respective average city populations (CITY.Population) rounded down to the nearest integer.

Note: CITY.CountryCode and COUNTRY.Code are matching key columns.

Input Format

The CITY and COUNTRY tables are described as follows:

 1449729804 f21d187d0f CITY

1449769013 e54ce90480 Country


Average Population of Each Continent SQL – Hacker Rank Solution

SELECT o.CONTINENT, FLOOR(AVG(i.POPULATION))
FROM CITY AS i JOIN COUNTRY AS o ON i.COUNTRYCODE=o.CODE GROUP BY o.CONTINENT;

Disclaimer: The above Problem (Average Population of Each Continent) generated by Hackerrank but the Solution is Provided by Chase2Learn. This tutorial is only for Educational and Learning purposes. Authority if any of the queries regarding this post or website fill the following contact form thank you.

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