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MySQL is the most popular open-source relational database, widely used in web applications.

Core Features

  • High Performance: Optimized query engine
  • Reliability: ACID transaction support
  • Scalability: Master-slave replication, sharding
  • Free & Open Source: Community edition is fully free

MySQL Basics

SQL syntax reference — CRUD to advanced queries.

Database Concepts

Core concepts — indexes, transactions, normalization.

SQLite

Lightweight embedded database for small apps.

Resources

Last modified on April 17, 2026