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HackerRank-SQL

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This repository contains HackerRank SQL Problem Solution.

// repository documentation

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# HackerRank-SQL
This repository contains **HackerRank SQL** Problem Solution.

Follow me on **HackerRank** [Click here!](https://www.hackerrank.com/arwazkhan189)

> SQL

# List of Problems

| S.No. |         Problem              | Subdomain    | Problem Link|
|-------| ---------------------------- | ------------ | ----------- |
| 1 | Revising the Select Query I  | Basic Select | [Link](https://www.hackerrank.com/challenges/revising-the-select-query/problem)|
| 2 | Revising the Select Query II  | Basic Select | [Link](https://www.hackerrank.com/challenges/revising-the-select-query-2/problem)|
| 3 | Select All  | Basic Select | [Link](https://www.hackerrank.com/challenges/select-all-sql/problem)|
| 4 | Select By ID | Basic Select | [Link](https://www.hackerrank.com/challenges/select-by-id/problem) |
| 5 | Japanese Cities' Attributes | Basic Select | [Link](https://www.hackerrank.com/challenges/japanese-cities-attributes/problem) |
| 6 | Japanese Cities' Names  | Basic Select | [Link](https://www.hackerrank.com/challenges/japanese-cities-name/problem) |
| 7 | Weather Observation Station 1  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-1/problem) |
| 8 | Weather Observation Station 3  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-3/problem) |
| 9 | Weather Observation Station 4  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-4/problem) |
| 10 | Weather Observation Station 5  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-5/problem) |
| 11 | Weather Observation Station 6  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-6/problem) |
| 12 | Weather Observation Station 7  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-7/problem) |
| 13 | Weather Observation Station 8  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-8/problem) |
| 14 | Weather Observation Station 9  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-9/problem) |
| 15 | Weather Observation Station 10  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-10/problem) |
| 16 | Weather Observation Station 11  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-11/problem) |
| 17 | Weather Observation Station 12  | Basic Select | [Link](https://www.hackerrank.com/challenges/weather-observation-station-12/problem) |
| 18 | Higher Than 75 Marks | Basic Select | [Link](https://www.hackerrank.com/challenges/more-than-75-marks/problem) |
| 19 | Employee Names | Basic Select | [Link](https://www.hackerrank.com/challenges/name-of-employees/problem) |
| 20 | Employee Salaries  | Basic Select | [Link](https://www.hackerrank.com/challenges/salary-of-employees/problem) |
| 21 | Type of Triangle  | Advanced Select | [Link](https://www.hackerrank.com/challenges/what-type-of-triangle/problem) |

---

# Useful material to solve queries

### REGEXP TABLE
<p align='center'>
 <img align='center' width='800' height='600' src='https://github.com/arwazkhan189/HackerRank-SQL/blob/main/Tables/regexp_sql.png' alt='regexp table'>
 
</p>

HackerRank-SQL

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