MySQL/595. Big Contries 大的国家

题目

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代码部分一（4407ms）

SELECT
    name,population,area 
    FROM world 
    WHERE area>3000000
UNION    
SELECT
    name,population,area 
    FROM world 
    WHERE population>25000000;

 

代码部分二(2509ms)

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