Population Density Difference in SQL | HackerRank Solution

Hello coders, today we are going to solve Population Density Difference HackerRank Solution in SQL.

Population Density Difference

Contents

Problem

Query the difference between the maximum and minimum populations in CITY.

Input Format

The CITY table is described as follows:

FieldType
IDNUMBER
NAMEVARCHAR2(17)
COUNTRYCODEVARCHAR2(3)
DISTRICTVARCHAR2(20)
POPULATIONNUMBER
CITY

Solution – Population Density Difference in SQL

MySQL

select max(population) - min(population) from city;

Disclaimer: The above Problem (Japan Density Difference) is generated by Hacker Rank but the Solution is Provided by CodingBroz. This tutorial is only for Educational and Learning Purpose.

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