Weather Observation Station 18 in SQL | HackerRank Programming Solutions | HackerRank SQL Solutions

Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank of Programming Language SQL. At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for Weather Observation Station 18 in SQL-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.

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Introduction To SQL

SQL stands for Structured Query Language. SQL is used to create, remove, alter the database and database objects in a database management system and to store, retrieve, update the data in a database. SQL is a standard language for creating, accessing, manipulating database management system. SQL works for all modern relational database management systems, like SQL Server, Oracle, MySQL, etc.

  • It is a standard language for Relational Database System. It enables a user to create, read, update and delete relational databases and tables.
  • All the RDBMS like MySQL, Informix, Oracle, MS Access and SQL Server use SQL as their standard database language.
  • SQL allows users to query the database in a number of ways, using English-like statements.

Link for the ProblemWeather Observation Station 18 sql – Hacker Rank Solution

Weather Observation Station 18 sql – Hacker Rank Solution

Problem:

Consider  and  to be two points on a 2D plane.

  • a happens to equal the minimum value in Northern Latitude (LAT_N in STATION).
  • b happens to equal the minimum value in Western Longitude (LONG_W in STATION).
  • c happens to equal the maximum value in Northern Latitude (LAT_N in STATION).
  • d happens to equal the maximum value in Western Longitude (LONG_W in STATION).

Query the Manhattan Distance between points  and  and round it to a scale of  decimal places.

Input Format

The STATION table is described as follows:

1449345840 5f0a551030 Station

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

Weather Observation Station 18 sql – Hacker Rank Solution
SELECT ROUND(ABS(MIN(LAT_N)-MAX(LAT_N)) + 
                                ABS(MIN(LONG_W)-MAX(LONG_W)), 4) FROM STATION;

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