HackerRank-Aggregation-Weather Observation Station 15

Weather Observation Station 15

Query the Western Longitude (LONG_W) for the largest Northern Latitude (LAT_N) in STATION that is less than 137.2345 . Round your answer to 4 decimal places.

Input Format

The STATION table is described as follows:

**My solution **

SELECT ROUND(LONG_W, 4)
FROM 
(   SELECT *
    FROM STATION
    WHERE LAT_N < 137.2345 
    ORDER BY LAT_N DESC
)
WHERE ROWNUM = 1;