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목록MySQL (42)
CodingSpace
[HackerRank/SQL] Basic Select - Weather Observation Station 5 (feat. LENGTH)
Problem. Basic Select - Weather Observation Station 5 Link. https://www.hackerrank.com/challenges/weather-observation-station-5/problem?isFullScreen=true&h_r=next-challenge&h_v=zen Weather Observation Station 5 | HackerRank Write a query to print the shortest and longest length city name along with the length of the city names. www.hackerrank.com Description. Query the two cities in STATION with..
[HackerRank/SQL] Basic Select - Weather Observation Station 4 (feat. COUNT)
Problem. Basic Select - Weather Observation Station 4 Link. https://www.hackerrank.com/challenges/weather-observation-station-4/problem?isFullScreen=true Weather Observation Station 4 | HackerRank Find the number of duplicate CITY names in STATION. www.hackerrank.com Description. Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in ..