Welcome to the SQL Problems - HackerRank repository! This repository contains solutions to various SQL problems found on the HackerRank platform. Whether you're a beginner or an experienced data analyst, you'll find these problems and solutions valuable for improving your SQL skills.
SQL (Structured Query Language) is a domain-specific language used for managing and manipulating relational databases. It is essential for querying, updating, and managing data within relational database management systems (RDBMS). SQL's declarative syntax allows users to specify what data they need rather than how to obtain it.
- Data Retrieval: SQL allows for powerful querying of data, including complex joins and aggregations.
- Data Manipulation: SQL provides commands to insert, update, delete, and manage data.
- Data Definition: SQL is used to define and modify database schema structures such as tables and indexes.
- Data Control: SQL includes commands for managing permissions and access control to data.
HackerRank is a competitive programming platform that offers a variety of challenges and exercises across different domains, including SQL. It allows developers and data professionals to practice and refine their SQL skills through hands-on problems. Solving SQL problems on HackerRank helps enhance your understanding of database concepts and improves your ability to write efficient and effective queries.
This repository includes solutions to various Python problems from HackerRank, organized by topic:
| No | Problems Category | Description |
|---|---|---|
| 0 | 0 | 0 |
Each solution is provided with a clear explanation to help you understand the problem and the approach to solve it.
- Clone the repository:
git clone https://github.com/JawadSher/HackerRank-SQL-Problems.git
- Navigate to the relevant problem folder to review the SQL queries and solutions.
Contributions are welcome! If you have solutions to additional problems or improvements, please fork the repository and submit a pull request. Make sure to follow the existing structure and provide clear explanations for your solutions.
This repository is licensed under the MIT License. See the LICENSE file for more details.
- HackerRank for providing a platform to practice SQL problems.
- Contributors who have helped in improving the repository.
For any questions or suggestions, please open an issue on the GitHub repository.
Happy Coding! 😊