select truncate(max(lat_n),4) from station where lat_n<137.2345;

MS SQL SERVER:

select CAST(MAX(LAT_N) AS DECIMAL (10,4)) from station
where LAT_N < 137.2345;

Not trying to be smarty pants but why is this a valid response? SELECT '137.0193'

Here is Oracle solution from my HackerrankPractice repository:

SELECT ROUND(MAX(Lat_N), 4)
FROM Station
WHERE Lat_N < 137.2345;

Feel free to ask if you have any questions :)

select * from(select ROUND(LAT_N,4) from station where lat_n < 137.2345 order by lat_n desc) where rownum =1;

for the oracle folks