[Hackerrank-SQL] Weather Observation Station 8

Query the list of CITY names from STATION which have vowels (i.e., a, e, i, o, and u) as both their first and last characters. Your result cannot contain duplicates.

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이름 처음과 끝이 모음으로 끝나는 도시를 중복없이 추출해라.

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