[코드카타] SQL 66 Weather Observation Station 6

[코드카타] SQL 66 Weather Observation Station 6

66 Weather Observation Station 6
https://www.hackerrank.com/challenges/weather-observation-station-6/problem?isFullScreen=true

Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) 
from STATION. Your result cannot contain duplicates.

Select distinct city
From Station
where city regexp '^[a,e,i,o,u]'

Weather Observation Station 6 ~ 12번 까지의 문제는 REGEXP를 활용한 문제로
난이도가 어렵지 않아서 이후 문제들은 코드카타 작성은 생략!