https://www.hackerrank.com/challenges/weather-observation-station-6/problem
Weather Observation Station 6 | HackerRank
Query a list of CITY names beginning with vowels (a, e, i, o, u).
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문제
Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from STATION. Your result cannot contain duplicates.
Input Format
The STATION table is described as follows:

where LAT_N is the northern latitude and LONG_W is the western longitude.
생각해보기
모음으로 시작하는 도시 이름 찾기
중복된 도시 이름은 제거
정규표현식 혹은 like를 사용한 패턴 매칭
코드
더보기
SELECT distinct CITY
FROM STATION
WHERE CITY REGEXP ('^A|^E|^I|^O|^U');
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