Big Countries

A country is big if it has an area of bigger than 3 million square km or a population of more than 25 million.

Example:

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  |

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

Result:

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

| name         | population  | area         |

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

| Afghanistan  | 25500100    | 652230       |

| Algeria      | 37100000    | 2381741      |

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

Approach

Mysql

SELECT name, population, area 

FROM World

WHERE area>3000000 OR population>25000000;

Oracle

SELECT name, population, area 

FROM World

WHERE area>3000000 OR population>25000000;