프로그래머스/level 3
[프로그래머스] 헤비 유저가 소유한 장소 (MySQL)
binaryJournalist
2021. 8. 10. 18:20
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출처: 프로그래머스 코딩 테스트 연습, https://programmers.co.kr/learn/challenges
MySQL 문제들은 아쉽게도 점수가 없어 순위에 영향을 주지 않는다.
SELECT ID, NAME, HOST_ID
FROM PLACES
WHERE HOST_ID IN (
SELECT HOST_ID
FROM PLACES
GROUP BY HOST_ID
HAVING COUNT(*) > 1
)
ORDER BY ID ASC;
참고: https://thispointer.com/mysql-select-where-count-is-greater-than-one-solved/
MySQL Select where Count is greater than one [Solved] – thispointer.com
In this article, we will be looking into the count() function with select statement and conditions. Table of Contents Select where count is greater than one : using HAVING ClauseSelect where count is greater than one : using JOINSSelect where count is grea
thispointer.com
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