HackerRank-Aggregation-Weather Observation Station 17

Weather Observation Station 17

Query the Western Longitude (LONG_W)where the smallest Northern Latitude (LAT_N) in STATION is greater than 38.7780. 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 > 38.7780
    ORDER BY LAT_N ASC
)
WHERE ROWNUM=1;