595. 大的国家

这里有张 World 表

+-----------------+------------+------------+--------------+---------------+
| 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 |
+-----------------+------------+------------+--------------+---------------+
如果一个国家的面积超过300万平方公里，或者人口超过2500万，那么这个国家就是大国家。

编写一个SQL查询，输出表中所有大国家的名称、人口和面积。

例如，根据上表，我们应该输出:

+--------------+-------------+--------------+
| name | population | area |
+--------------+-------------+--------------+
| Afghanistan | 25500100 | 652230 |
| Algeria | 37100000 | 2381741 |
+--------------+-------------+--------------+

来源：力扣（LeetCode）
链接：https://leetcode-cn.com/problems/big-countries

# Write your MySQL query statement below
select
    name,population,area
from
    world
where
    area>3000000 or population>25000000
;

# Write your MySQL query statement below
select
    name,population,area
from
    world
where
    area>3000000
union
select
    name,population,area
from 
    world
where
    population>25000000
;

# Write your MySQL query statement below
select name,population,area from world where area>3000000 or population>25000000