[해커랭크] MySQL PERCENT_RANK - Weather Observation Station 20

Weather Observation Station 20 | HackerRank Query the median of Northern Latitudes in STATION and round to 4 decimal places. www.hackerrank.com LAT_N 값 중에서 중앙값(Median)을 찾는 문제입니다. 문제) A median is defined as a number separating the higher half of a data set from the lower half. Query the median of the Northern Latitudes (LAT_N) from STATION and round your answer to 4 decimal places. 이번 문제는 WINDOW ..

원문링크 : [해커랭크] MySQL PERCENT_RANK - Weather Observation Station 20