This problem is not about programming related. It’s about the database. Here is the link to the problem.
There is a table called the world. It contains some information about countries around the world. These are name, continent, area, population, etc.
To solve this problem, we have to write a SQL solution to output big countries’ name, population, and area.
A country is big if it has an area of bigger than 3 million square km or a population of more than 25 million.
These are the explanation from the problem details. And the solution is very easy and self-explanatory.
I am using MySQL to solve this problem. Let’s look at the code
SELECT name, population, area FROM WORLD WHERE area > 3000000 OR population > 25000000
If you submit the code in LeetCode, it will be accepted.