Problem solving/DataBase
[LeetCode] 595. Big Countries (Oracle)
Young_A
2021. 1. 8. 14:37
LeetCode - Problems - Database - 595. Big Countries
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Given SQL Schema
Create table If Not Exists World (name varchar(255), continent varchar(255), area int, population int, gdp int)
Truncate table World
insert into World (name, continent, area, population, gdp) values ('Afghanistan', 'Asia', '652230', '25500100', '20343000000')
insert into World (name, continent, area, population, gdp) values ('Albania', 'Europe', '28748', '2831741', '12960000000')
insert into World (name, continent, area, population, gdp) values ('Algeria', 'Africa', '2381741', '37100000', '188681000000')
insert into World (name, continent, area, population, gdp) values ('Andorra', 'Europe', '468', '78115', '3712000000')
insert into World (name, continent, area, population, gdp) values ('Angola', 'Africa', '1246700', '20609294', '100990000000')
Problem Description
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.
My Solution (Oracle)
/* Write your PL/SQL query statement below */
SELECT name, population, area
FROM World
WHERE population > 25000000
OR area > 3000000;