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Hackerrank | MySQL | Weather Observation Station 9
Weather Observation Station 9 Problem Weather Observation Station 9 | HackerRank Query an alphabetically ordered list of CITY names not starting with vowels. www.hackerrank.com Query the list of CITY names from STATION that do not start with vowels. Your result cannot contain duplicates. Solution SELECT DISTINCT CITY FROM STATION WHERE SUBSTR(CITY, 1, 1) NOT IN ('a','e','i','o','u'); SELECT DIST..
데이터분석/practice_query
2020. 8. 28. 09:02