[HackerRank SQL] Weather Observation Station 15

문제 link
https://www.hackerrank.com/challenges/weather-observation-station-15/problem

Code link
https://github.com/JamesJung01/Hackerrank_sql/blob/main/01_Easy/Weather_Observation_Stations15.sql

SELECT ROUND(MAX(LONG_W),4) 
FROM STATION
WHERE LAT_N = (SELECT MAX(LAT_N) FROM STATION WHERE LAT_N < 137.2345);