sql/BigCountries.sql

# Source : https://leetcode.com/problems/big-countries
# Author : Dean Shi
# Date   : 2017-08-16

##################################################################################
#
#  There is a table World
#
#  +-----------------+------------+------------+--------------+---------------+
#  | name            | continent  | area       | population   | gdp           |
#  +-----------------+------------+------------+--------------+---------------+
#  | Afghanistan     | Asia       | 652230     | 25500100     | 20343000      |
#  | Albania         | Europe     | 28748      | 2831741      | 12960000      |
#  | Algeria         | Africa     | 2381741    | 37100000     | 188681000     |
#  | Andorra         | Europe     | 468        | 78115        | 3712000       |
#  | Angola          | Africa     | 1246700    | 20609294     | 100990000     |
#  +-----------------+------------+------------+--------------+---------------+
#
#  A country is big if it has an area of bigger than 3 million square km or a
#  population of more than 25 million.
#
#  Write a SQL solution to output big countries' name, population and area.
#
#  For example, according to the above table, we should output:
#
#  +--------------+-------------+--------------+
#  | name         | population  | area         |
#  +--------------+-------------+--------------+
#  | Afghanistan  | 25500100    | 652230       |
#  | Algeria      | 37100000    | 2381741      |
#  +--------------+-------------+--------------+
#
##################################################################################

SELECT name, population, area FROM World WHERE area > 3000000 OR population > 25000000