https://github.com/pacemakerx/leetcode-my-solutions-sql-50
This repository contains my solutions for the SQL 50 LEARNING PLAN FROM LEETCODE
https://github.com/pacemakerx/leetcode-my-solutions-sql-50
leetcode leetcode-sql sql
Last synced: 11 days ago
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This repository contains my solutions for the SQL 50 LEARNING PLAN FROM LEETCODE
- Host: GitHub
- URL: https://github.com/pacemakerx/leetcode-my-solutions-sql-50
- Owner: PacemakerX
- Created: 2025-09-24T09:26:50.000Z (27 days ago)
- Default Branch: master
- Last Pushed: 2025-09-24T19:41:07.000Z (27 days ago)
- Last Synced: 2025-09-24T21:08:34.816Z (27 days ago)
- Topics: leetcode, leetcode-sql, sql
- Homepage:
- Size: 3.91 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.MD
Awesome Lists containing this project
README
# LeetCode SQL 50 This repository contains all my **accepted solutions** for the **LeetCode SQL 50** 🚀 Getting Started

[](https://www.w3schools.com/sql/)
[](https://www.mysql.com/)
[](https://github.com/PacemakerX/leetCode-my-solutions-sql-50/stargazers)
[](./LICENSE)
[](https://github.com/PacemakerX/leetCode-my-solutions-sql-50/commits/main)
[](https://github.com/PacemakerX/leetCode-my-solutions-sql-50)
[](https://github.com/PacemakerX/leetCode-my-solutions-sql-50/issues)
[](https://github.com/PacemakerX/leetCode-my-solutions-sql-50)### Prerequisites
- Basic understanding of SQL syntax
- Access to a SQL database system (MySQL, PostgreSQL, SQLite, etc.)
- SQL client or online SQL playground### Usage
1. **Clone the repository:**
```bash
git clone https://github.com/PacemakerX/leetCode-my-solutions-sql-50.git
cd leetCode-my-solutions-sql-50
```2. **Browse solutions:**
- Each file is named `questionX_YYYY.sql` where X is the question number and YYYY is the LeetCode problem ID
- Open any `.sql` file to view the solution
- Solutions include comments explaining the approach3. **Test solutions:**
- Copy the SQL code to your preferred SQL environment
- Use the sample data provided in LeetCode problem descriptions
- Verify results match expected outputs## 📁 Repository Structure
```
├── README.md # This file
├── question1_1757.sql # Recyclable and Low Fat Products
├── question2_584.sql # Find Customer Referee
├── question3_595.sql # Big Countries
├── question4_1148.sql # Article Views I
├── question5_1683.sql # Invalid Tweets
└── ... (more solutions)
```study plan, organized by question number and problem ID. It's a comprehensive collection focusing specifically on SQL database problems to help master essential SQL concepts and techniques.
## 📋 About SQL 50
The **LeetCode SQL 50** is a curated list of essential SQL problems that cover fundamental database concepts including:
- **Select & Basic Filtering**
- **Joins** (Inner, Left, Right, Full Outer)
- **Aggregate Functions** (COUNT, SUM, AVG, MIN, MAX)
- **Subqueries & CTEs**
- **Window Functions**
- **String Functions**
- **Date/Time Operations**
- **Advanced SQL Techniques**## 🎯 Why This Repository?
This repository serves as:
- **SQL Mastery**: A systematic approach to learning essential SQL concepts
- **Interview Preparation**: Perfect for preparing SQL questions commonly asked in technical interviews
- **Reference Guide**: Quick access to SQL patterns and techniques
- **Learning Resource**: Clean, commented solutions for SQL beginners and intermediate learners
- **Progress Tracking**: Personal archive of SQL 50 completion journey## 📊 LeetCode Stats
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## Connect with Me on LeetCode!
[](https://leetcode.com/u/PacemakerX/)
Visit my **[LeetCode Profile](https://leetcode.com/u/PacemakerX/)** to see my complete programming journey!
## Feel free to connect with me!