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SQL_Practice

Overview

Welcome to the SQL_Practice Repository! This repository is dedicated to providing solutions to SQL practice problems sourced from DataLemur. Whether you're a beginner looking to learn SQL or an experienced developer aiming to sharpen your skills, this repository offers structured practice exercises categorized by difficulty level.

Introduction

The SQL practice problems in this repository are organized into three main folders based on difficulty levels:

  • Easy: Entry-level SQL problems to get you started.
  • Medium: Intermediate SQL challenges for expanding your SQL knowledge.
  • Hard: Advanced SQL problems to test and refine your expertise.

Each folder contains:

  • SQL script files (*.sql) presenting the problem statements.
  • Corresponding SQL solution files (*_solution.sql) offering one or more solutions to each problem.

Folder Structure

The repository structure is designed to facilitate easy navigation and practice:

SQL-Practice-Problems/
│
├── Easy/
│   ├── problem1.sql
│   ├── problem1_solution.sql
│   ├── problem2.sql
│   ├── problem2_solution.sql
│   └── ...
│
├── Medium/
│   ├── problem1.sql
│   ├── problem1_solution.sql
│   ├── problem2.sql
│   ├── problem2_solution.sql
│   └── ...
│
└── Hard/
    ├── problem1.sql
    ├── problem1_solution.sql
    ├── problem2.sql
    ├── problem2_solution.sql
    └── ...

Usage

To use this repository:

  1. Clone the repository to your local machine:

    git clone https://github.com/your-username/SQL-Practice-Problems.git

  2. Navigate to the difficulty level (Easy/, Medium/, or Hard/) you want to practice.

  3. Open the problem (problemX.sql) and solution (problemX_solution.sql) files in your preferred SQL editor.

  4. Review the problem statement and study the provided SQL solutions.

  5. Attempt to solve the problems on your own before referring to the solutions.

  6. Experiment and modify the solutions to deepen your understanding of SQL concepts.

License

This project is licensed under the MIT License - see the LICENSE file for details.