[hackerrank] Weather Observation Station 13

[hackerrank] Prepare > SQL > Aggregation > Weather Observation Station 13

 

[문제]

Query the sum of Northern Latitudes (LAT_N) from STATION having values greater than  and less than . Truncate your answer to  decimal places.

Input Format

The STATION table is described as follows:

where LAT_N is the northern latitude and LONG_W is the western longitude.

 

[MYSQL]

 

 

[ORCALE]

select round(sum(lat_n),4)
from station
where lat_n >= 38.7880 and lat_n <= 137.2345;