SQL Practice

This repository contains my complete SQL practice, covering concepts from basic queries to advanced SQL logic. The purpose of this repository is learning and skill-building, not limited to any single platform.

Problems and queries here come from:

• Online coding platforms (like LeetCode)
• Concept-based practice queries
• Personal notes and experiments

Topics Covered

• SELECT, WHERE, ORDER BY
• Aggregate functions
• GROUP BY and HAVING
• Joins (INNER, LEFT)
• Subqueries
• Window functions
• CASE statements
• Date and conditional logic

Learning Approach

• Focus on understanding query logic
• Use readable and well-commented SQL
• Revisit problems for improvement
• Treat SQL as a problem-solving tool

Goal

To build a strong foundation in SQL for software engineering internships, academic work, and real-world data problem solving.