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In this post, you will find the solution for Weather Observation Station 2 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 Problem – Weather Observation Station 2 sql – Hacker Rank Solution
Weather Observation Station 2 sql – Hacker Rank Solution
Problem:
Query the following two values from the STATION table:
- The sum of all values in LAT_N rounded to a scale of 2 decimal places.
- The sum of all values in LONG_W rounded to a scale of 2 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.
Output Format
Your results must be in the form:
lat lon
where is the sum of all values in LAT_N and is the sum of all values in LONG_W. Both results must be rounded to a scale of decimal places.
Weather Observation Station 2 sql – Hacker Rank Solution
SELECT ROUND(SUM(LAT_N), 2), ROUND(SUM(LONG_W), 2) FROM STATION;
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