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  1. Prepare
  2. SQL
  3. Basic Join
  4. Average Population of Each Continent
  5. Discussions

Average Population of Each Continent

  • hikimiko01
     + 0 comments
    SELECT COUNTRY.CONTINENT, FLOOR(AVG(CITY.POPULATION))
FROM COUNTRY
JOIN CITY
ON CITY.CountryCode = COUNTRY.Code
GROUP BY COUNTRY.CONTINENT