where LAT_N is the northern latitude and LONG_W is the western longitude.
Station Table에서 중복 제외 AEIOU로 끝나는 값들을 조회
SELECT DISTINCT CITY
FROM STATION
WHERE CITY LIKE '%[AEIOU]'
SELECT DISTINCT CITY
FROM STATION
WHERE CITY REGEXP '[AEIOU]$'
REGEXP '[AEIOU]$': 정규식에서 끝 글글자가 AEIOU라는 값 출력
https://www.hackerrank.com/challenges/weather-observation-station-7