Weather Observation Station 9 query in SQL | HackerRank Programming Solutions | HackerRank SQL Solutions

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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 9 query in SQL – Hacker Rank Solution

Weather Observation Station 9 query in SQL – Hacker Rank Solution

Problem:

Query the list of CITY names starting with vowels (i.e., aeio, or u) from STATION. Your result cannot contain duplicates.

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 9 query in SQL – Hacker Rank Solution
SELECT DISTINCT CITY FROM STATION 
WHERE NOT (CITY LIKE 'a%' OR CITY LIKE 'e%'
    OR CITY LIKE 'i%' OR CITY LIKE 'o%' OR CITY LIKE 'u%');

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