Hello Friends in this article i am gone to share Hacker Rank SQL Solutions with you | Japan Population Solution

Also Visit:  Average Population Solution

Problem

Query the sum of the populations for all Japanese cities in CITY. The COUNTRYCODE for Japan is JPN.

Input Format

The CITY table is described as follows:

Solution – Japan Population

MySQL Code

select sum(population) from city where countrycode='JPN';

As of August 2023, Japan has a population of almost 125 million, of which nearly 122 million are Japanese nationals. A small population of foreign residents makes up the remainder. In 2019, 92% of the total Japanese population lived in cities. The capital city, Tokyo, has a population of 13.9 million⁵.

As of August 2023, the population density in Japan is 338 per Km² (876 people per mi²) with a total land area of 364,555 Km² (140,755 sq. miles).

Population of Tokyo

The greater Tokyo metropolitan area, which is spread over 3 prefectures, is much larger and has a population that is estimated to be over 36 million. That means the greater Tokyo area is home to 25% of Japan ‘s population, and it’s the most populous metropolitan area in the world.

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