Hacker Rank SQL

Weather Observation Station 13 Solution

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Also Visit:  Weather Observation Station 2 Solution


 

Problem

Query the sum of Northern Latitudes (LAT_N) from STATION having values greater than 38.7880 and less than 137.2345. Truncate your answer to 4 decimal places.

Input Format

The STATION table is described as follows:

Field Type
ID NUMBER
CITY VARCHAR2(21)
STATE VARCHAR2(2)
LAT_N NUMBER
Long_W NUMBER

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

 

Solution – Weather Observation Station 13

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

 


Weather observations

Basic weather observation instruments include thermometers, rain gauges, barometers, and anemometers (wind speed meters).

What are the four types of weather observations?

There are four types of weather observations: surface, upper air, radar, and satellite.

What is weather observation stations?

A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.

Who observes weather?

A meteorologist is a physical scientist who observes, studies, or forecasts the weather.

 

 

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