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

Average Population of Each Continent

  • nikovargas27
     + 0 comments

    MySQL:

    SELECT  
    coun.continent,
    FLOOR(AVG(city.population)) AS avg_population
FROM country coun
INNER JOIN city ON coun.code = city.countrycode
GROUP BY coun.continent;