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Milky's note
[HackerRank](E) Population Density Difference 본문
https://www.hackerrank.com/challenges/population-density-difference/problem?isFullScreen=true
Population Density Difference | HackerRank
Query the difference between the maximum and minimum city populations in CITY.
www.hackerrank.com
[문제]
Query the difference between the maximum and minimum populations in CITY.
Input Format
The CITY table is described as follows:
[답]
-mysql
select max(population)-min(population) from city'SQL > SQL 코딩 테스트-HackerRank' 카테고리의 다른 글
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