Merge pull request #3 from Frisk0316/Frisk0316-patch-3

Create 595. Big Countries

Author: Frisk0316

595. Big Countries

@@ -0,0 +1,58 @@
+/*
+Problem Description: 
+
++-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| name        | varchar |
+| continent   | varchar |
+| area        | int     |
+| population  | int     |
+| gdp         | bigint  |
++-------------+---------+
+name is the primary key column for this table.
+Each row of this table gives information about the name of a country, the continent to which it belongs, its area, the population, and its GDP value.
+
+ 
+
+A country is big if:
+
+    it has an area of at least three million (i.e., 3000000 km2), or
+    it has a population of at least twenty-five million (i.e., 25000000).
+
+Write an SQL query to report the name, population, and area of the big countries.
+
+Return the result table in any order.
+
+The query result format is in the following example.
+
+ 
+
+Example 1:
+
+Input: 
+World table:
++-------------+-----------+---------+------------+--------------+
+| name        | continent | area    | population | gdp          |
++-------------+-----------+---------+------------+--------------+
+| Afghanistan | Asia      | 652230  | 25500100   | 20343000000  |
+| Albania     | Europe    | 28748   | 2831741    | 12960000000  |
+| Algeria     | Africa    | 2381741 | 37100000   | 188681000000 |
+| Andorra     | Europe    | 468     | 78115      | 3712000000   |
+| Angola      | Africa    | 1246700 | 20609294   | 100990000000 |
++-------------+-----------+---------+------------+--------------+
+Output: 
++-------------+------------+---------+
+| name        | population | area    |
++-------------+------------+---------+
+| Afghanistan | 25500100   | 652230  |
+| Algeria     | 37100000   | 2381741 |
++-------------+------------+---------+
+
+*/
+
+# Write your MySQL query statement below
+
+SELECT name, population, area
+FROM world
+WHERE area >= 3000000 or population >= 25000000