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Milky's note
[HackerRank](E) Japan Population 본문
https://www.hackerrank.com/challenges/japan-population/problem?isFullScreen=true
Japan Population | HackerRank
Query to the sum of the populations of all Japanese cities in CITY.
www.hackerrank.com
[문제]
Query the sum of the populations for all Japanese cities in CITY. The COUNTRYCODE for Japan is JPN.
Input Format
The CITY table is described as follows:
[답]
-mysql
select sum(population) from city
where COUNTRYCODE = 'JPN'
'SQL > SQL 코딩 테스트-HackerRank' 카테고리의 다른 글
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| [HackerRank](E) Average Population (0) | 2022.03.25 |
| [HackerRank](E) Revising Aggregations - Averages (0) | 2022.03.25 |
| [HackerRank](E) Revising Aggregations - The Sum Function (0) | 2022.03.25 |
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