[sqlzoo] SELECT basics 정답, 풀이

-- 1. Introducing the world table of countries

SELECT population FROM world
  WHERE name = 'Germany'
  
-- 2. Scandinavia
  
SELECT name, population FROM world
  WHERE name IN ('Sweden', 'Norway', 'Denmark');
  
-- 3. Just the right size
  
SELECT name, area FROM world
  WHERE area BETWEEN 200000 AND 250000