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中文文档

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      |

+--------------+-------------+--------------+

 

Solutions

SQL

SELECT name,
         population,
         area
FROM World
WHERE area>3000000
        OR population>25000000