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

Average Population of Each Continent

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1670 Discussions

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  • fahmimushlih4
     + 0 comments

    mysql

    SELECT continent, FLOOR(AVG(city.population)) FROM city
JOIN country ON city.countrycode = country.code
GROUP BY continent

  • m_ratheeshmano
     + 1 comment

    Why FLOOR insted of ROUND function? FLOOR(1234.56) will give you 1234.

    ROUND(1234.56, 0) will give you 1235.

  • harshshukla1900
     + 0 comments

    why is my query not working?

    select country.continent , round(avg(city.population),0) from country join city on city.countrycode = country.code group by country.continent;

  • manpreetkaur6136
     + 1 comment

    SELECT CC.CONTINENT, FLOOR(AVG(C.POPULATION)) FROM CITY C JOIN COUNTRY CC ON CC.CODE = C.COUNTRYCODE GROUP BY CC.CONTINENT

  • Teerathep_ng
     + 0 comments
    SELECT co.continent, FLOOR(AVG(ci.population))
FROM country co
JOIN city ci ON co.code = ci.countrycode
GROUP BY co.continent;