MySQL/MariaDB Database Indexing Performance Demo 01

GitHub repo link: https://github.com/baldez300/MySQL_da...

Database Indexing Performance Demo:

This first demo (01-indexing) demonstrates how database indexes dramatically improve query performance using a realistic MySQL/MariaDB dataset. The demo is designed for developers building slow-loading websites or applications and shows, step by step, how proper indexing can make queries up to 100× faster.

🎯 What This Demo Shows
Today we're diving into database indexing one of the most POWERFUL optimization techniques in database management. By the end of this demo, you will understand:

What database indexes are and why they matter
How to identify slow queries
How to create effective indexes
How indexes affect JOIN performance
Real, measurable performance improvements using actual data
The demo uses MySQL/MariaDB with a dataset containing thousands of employees & phone call records. And the best part? You can follow along, I've added the SQL files in the repo so you can try this yourself!

🚀 Introduction
"Have you ever wondered why some database queries take FOREVER while others are lightning fast? This demo shows the ONE technique that can make your queries 100 times faster and it’s simpler than you think."

Database Indexing: From Slow 🐢 → SUPER FAST 🚀