Weather Observation Station 4 query in SQL – Hacker Rank Solution

Weather Observation Station 4 query in SQL – Hacker Rank Solution

October 30, 2021

 

Problem

Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table.
The STATION table is described as follows:

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

For example, if there are three records in the table with CITY values ‘New York’, ‘New York’, ‘Bengalaru’, there are 2 different city names: ‘New York’ and ‘Bengalaru’. The query returns , because .

Weather Observation Station 4 query in SQL – Hacker Rank Solution

Code:

select count(city) - count(distinct city) from station;

Disclaimer: The above Problem (Weather Observation Station 4 query in SQL ) generated by Hackerrank but the Solution is Provided by MulriplexCoder. This tutorial is only for Educational and Learning purposes. Authority if any of the queries regarding this post or website fill the following contact form thank you.
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