🧠 SQL-50 LeetCode Study Plan

Welcome to my SQL-50 LeetCode Study Plan! This repository documents my daily journey of solving the LeetCode SQL-50 problems — a collection of 50 curated SQL challenges designed to strengthen query-building, database logic, and analytical skills.

📘 About the Project

The goal of this study plan is to consistently practice and master SQL by solving one problem per day. Each day’s solution will be shared as a PDF file, containing:

🔗 Problem Link – Direct link to the original LeetCode problem

📝 Problem Description – A short overview of what the problem asks for

💡 Approach – Explanation of the thought process and key concepts used

🧩 Solution – Final SQL query with explanations or comments

🧭 Objectives

1.Strengthen SQL fundamentals (SELECT, WHERE, GROUP BY, HAVING, JOIN, etc.)

2.Learn efficient query writing techniques

3.Understand complex problem-solving approaches using SQL

4.Build a solid foundation for Data Analysis and Backend Testing

🛠️ Tools & Environment

:: Platform: LeetCode SQL Problems

:: Database Engine: MySQL (compatible syntax)

:: Editor: LeetCode SQL Editor / Local SQL Client

:: Format: PDF (for portability and readability)

🚀 How to Use

Browse the /solutions directory.

Open any day’s PDF file.

Read the problem, understand the approach, and explore the SQL solution.

Try solving it yourself on LeetCode before checking the solution!

🤝 Contributions

This is a personal learning project, but if you'd like to share improvements or alternative SQL approaches, feel free to open an issue or pull request.