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 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。
-- 179 -- select name ,population,area -- from world -- where area >= 3000000 or population >=25000000 -- 171 SELECT name, population, area FROM world WHERE area > 3000000 UNION SELECT name, population, area FROM world WHERE population > 25000000 ;