공부/PS ( SQL)
[HackerRank/Basic Select] Weather Observation Station 3
happyst
2021. 9. 24. 01:29
https://www.hackerrank.com/challenges/weather-observation-station-3/problem
Weather Observation Station 3 | HackerRank
Query a list of unique CITY names with even ID numbers.
www.hackerrank.com
SELECT DISTINCT CITY FROM STATION
WHERE ID MOD 2 = 0