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select C2.continent, round(avg(C1.population)) from city as C1 inner join country as C2 on C1.countrycode = C2.code group by C2.continent
,wrote 'round()' func initially, why is it wrong?
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Average Population of Each Continent
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select C2.continent, round(avg(C1.population)) from city as C1 inner join country as C2 on C1.countrycode = C2.code group by C2.continent
,wrote 'round()' func initially, why is it wrong?