This repository is my active workshop for mastering SQL. It contains solutions to real-world problems from top platforms, demonstrating skills in querying, analysis, and efficient SQL techniques.
I actively solve problems from:
This repo showcases a diverse range of SQL skills — including:
- Writing clean, efficient queries
- Solving real-world case studies
- Understanding core database concepts
| Category | Skills/Topics Demonstrated |
|---|---|
| Aggregations | GROUP BY, COUNT, SUM, AVG, MAX, MIN |
| Joins | INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN |
| Subqueries | WHERE, IN, EXISTS, ALL, ANY |
| Window Functions | ROW_NUMBER, RANK, DENSE_RANK, NTILE |
| Set Operations | UNION, INTERSECT, EXCEPT |
This repository contains problem-solving SQL scripts written primarily in:
Each file is tailored based on the platform's dialect (LeetCode uses MySQL, HackerRank supports both, SQL-Practice also uses MySQL).
I aim to demonstrate versatility across different SQL engines while maintaining clean and readable query logic.
- Become SQL-proficient for real-world data tasks.
- Master complex query techniques using modern SQL.
- Build a strong portfolio through consistency and exploration.
Total Solved: 137 problems
(from LeetCode, HackerRank, and SQL-Practice.com)