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SELECT CAST(ROUND(AVG(LAT_N),4) AS DECIMAL(10,4)) AS median
FROM (
SELECT LAT_N,
ROW_NUMBER() OVER (ORDER BY LAT_N) AS row_num,
COUNT(*) OVER () AS total_count
FROM STATION
) AS ranked_data
WHERE row_num = (total_count + 1) / 2;
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Weather Observation Station 20
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SELECT CAST(ROUND(AVG(LAT_N),4) AS DECIMAL(10,4)) AS median FROM ( SELECT LAT_N, ROW_NUMBER() OVER (ORDER BY LAT_N) AS row_num, COUNT(*) OVER () AS total_count FROM STATION ) AS ranked_data WHERE row_num = (total_count + 1) / 2;