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[HackerRank] Revising Aggregations- The Count Function (MySQL) 본문
Data Analysis/SQL
[HackerRank] Revising Aggregations- The Count Function (MySQL)
혜온 :) 2022. 8. 12. 14:23Revising Aggregations - The Count Function | HackerRank
Query the number of cities having populations larger than 100000.
www.hackerrank.com
문제
Query a count of the number of cities in CITY having a Population larger than .
Input Format
The CITY table is described as follows:
풀이
select count(id)
from city
where population>100000'Data Analysis > SQL' 카테고리의 다른 글
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