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WITH RankedData AS (
SELECT
LAT_N,
ROW_NUMBER() OVER (ORDER BY LAT_N) AS rn,
COUNT(*) OVER () AS total_rows
FROM
station
)
SELECT ROUND(AVG(LAT_N),4) as MEDIAN
FROM RankedData
WHERE rn in (FLOOR((total_rows+1)/2), CEIL((total_rows + 1) / 2))
-- floor makes 4.5 to 4
-- and ceil makes 4.5 to 5
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Weather Observation Station 20
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WITH RankedData AS ( SELECT LAT_N, ROW_NUMBER() OVER (ORDER BY LAT_N) AS rn, COUNT(*) OVER () AS total_rows FROM station ) SELECT ROUND(AVG(LAT_N),4) as MEDIAN FROM RankedData WHERE rn in (FLOOR((total_rows+1)/2), CEIL((total_rows + 1) / 2))
-- floor makes 4.5 to 4 -- and ceil makes 4.5 to 5