595. Big Countries (Easy)

阿新 • • 發佈：2017-05-21

bsp pre and where eas country lee ont targe

Source: https://leetcode.com/problems/big-countries/#/description
Description:

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      |
+--------------+-------------+--------------+

Solution:

select name, population, area
from World
where area > 3000000 or population > 25000000

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bsp pre and where eas country lee ont targe Source: https://leetcode.com/problems/big-countries/#/descriptionDescription: There is a tab

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595. Big Countries (Easy)

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