Welcome to the SQL-50 repository! This repository contains solutions to 50 SQL questions from LeetCode, aimed at helping you practice and master SQL concepts. Whether you're preparing for interviews or simply looking to improve your SQL skills, this repository is designed to provide you with a comprehensive set of exercises and solutions.
LeetCode is a popular platform for practicing coding interviews, including SQL problems. It offers a wide range of questions across various difficulty levels, making it an excellent resource for sharpening your problem-solving skills.
This repository is organized as follows:
- Each SQL question from LeetCode is provided in its own directory.
- Within each directory, you'll find:
- The problem statement in a README.md file.
- A SQL file containing the solution code.
- Additional files if required (e.g., input data files).
To get started with this repository:
- Clone or download the repository to your local machine.
- Navigate to the directory of the SQL question you want to solve.
- Read the problem statement in the README.md file.
- Write your SQL solution in the provided SQL file.
- Test your solution against sample inputs if provided.
- Compare your solution with the provided solution in the SQL file.
- Iterate and refine your solution as needed.
Contributions to this repository are welcome! If you have a new SQL question to add or if you've identified improvements to existing solutions, feel free to submit a pull request.
The solutions provided in this repository are intended for educational purposes. While we strive for accuracy and efficiency, there may be alternative solutions or optimizations not covered in this repository. Use these solutions as a reference and aim to understand the underlying SQL concepts.
If you encounter any issues or have questions about the solutions, feel free to open an issue in this repository. We'll do our best to assist you.
Happy coding!