Weather Observation Station 4 query in SQL Hacker Rank Solution

Hello coders, In this post, you will learn how to solve the Weather Observation Station 4 query in SQL Hacker Rank Solution. This problem is a part of the SQL Hacker Rank series.

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Weather Observation Station 4 query in SQL Hacker Rank Solution
Weather Observation Station 4 query in SQL – Hacker Rank Solution

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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

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 Chase2Learn. 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.


Is HackerRank good for SQL practice?

You’ve probably heard of HackerRank before, so it should be no surprise to you that they have one of the best collections of SQL practice challenges around.

Which SQL does HackerRank use?

The HackerRank Test interface has an in-built database query editor and supports programming in Microsoft SQL, MySQL, Oracle, or DB2 databases.

What is HackerRank SQL?

Basic. Get Certificate. SQL is an industry-standard query language that works with relational databases. Unlike some earlier systems, queries are performed at the server and only the results are passed to a client. This resulted in the ability to work with large databases efficiently over a network. 

How many questions are there in HackerRank for SQL?

That will also help your SQL code challenges journey

It took me a bit more than two weeks (on and off between work, workout, and taking the kid to day school, etc.) to finish all the 58 SQL challenges on the site, and I gained quite some insights from the journey (and having quite some fun doing that!).

Where can I find HackerRank solutions in SQL?

in this post, you will get all the solutions of HackerRank SQL Problems.

Finally, we are now, in the end, I just want to conclude some important message for you

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