혜온의 이것저것

https://www.hackerrank.com/challenges/weather-observation-station-7/problem?isFullScreen=true Weather Observation Station 7 | HackerRank Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. www.hackerrank.com 문제 Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Your result cannot contain duplicates. Input Format The STATION table is described ..

https://www.hackerrank.com/challenges/weather-observation-station-6/problem?isFullScreen=true Weather Observation Station 6 | HackerRank Query a list of CITY names beginning with vowels (a, e, i, o, u). www.hackerrank.com 문제 Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from STATION. Your result cannot contain duplicates. Input Format The STATION table is described a..

https://www.hackerrank.com/challenges/weather-observation-station-5/problem?isFullScreen=true 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 문제 Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i.e.: number of charac..

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 문제 Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table. The STATION table is described as follows: where LAT_N is t..

https://www.hackerrank.com/challenges/weather-observation-station-3/problem?isFullScreen=true Weather Observation Station 3 | HackerRank Query a list of unique CITY names with even ID numbers. www.hackerrank.com 문제 Query a list of CITY names from STATION for cities that have an even ID number. Print the results in any order, but exclude duplicates from the answer. The STATION table is described ..