serendipity

Weather Observation 시리즈 SQL 문제 풀이 2 Weather Observation Station 11 https://www.hackerrank.com/challenges/weather-observation-station-11/problem Weather Observation Station 11 | HackerRank Query a list of CITY names not starting or ending with vowels. www.hackerrank.com SELECT DISTINCT city FROM station WHERE city REGEXP '^[^aeiou]|[^aeiou]$' Weather Observation Station 12 https://www.hackerrank...

Weather Observation 시리즈 SQL 문제 풀이 Weather Observation Station 1 https://www.hackerrank.com/challenges/weather-observation-station-1/problem Weather Observation Station 1 | HackerRank Write a query to print the CITY and STATE for each attribute in the STATION table. www.hackerrank.com SELECT city, state FROM station Weather Observation Station 2 https://www.hackerrank.com/challenges/weather-obser..