LeetCode 595 Big Countries
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Acceptance:73.1%
Difficulty:Easy
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 |
+--------------+-------------+--------------+
题目的意思是:
如果一个国家面积超过300万平方公里或人口超过2500万,那么这个国家就很大。
编写一个SQL解决方案来输出大国的名称,人口和面积。
SQL代码如下:
# Write your MySQL query statement below
select name ,population,area from World where area>3000000 or population>25000000;