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[HackerRank] Average Population 본문
https://www.hackerrank.com/challenges/average-population/problem?isFullScreen=true
Average Population | HackerRank
Query the average population of all cities, rounded down to the nearest integer.
www.hackerrank.com
문제
Query the average population for all cities in CITY, rounded down to the nearest integer.
Input Format
The CITY table is described as follows:
풀이
select floor(avg(population))
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