Database Migrations

Database migrations are a systematic approach to managing incremental, version-controlled changes to a database schema over time. They involve scripts or code that define modifications like adding tables, altering columns, or updating data, ensuring consistency across development, testing, and production environments. This practice is essential for evolving applications without manual intervention or data loss.

Also known as: Schema Migrations, DB Migrations, Migration Scripts, Database Versioning, Data Migrations

Why learn Database Migrations?

Developers should use database migrations to maintain schema integrity and enable collaborative development, especially in agile or continuous deployment workflows. They are crucial for applications with frequent updates, such as web services or SaaS platforms, as they automate schema changes, support rollbacks, and ensure all team members work with the same database structure.

Learning Resources

• docs: Database Migrations Explained
• tutorial: Flyway Tutorial for Beginners
• docs: Database Migrations with Django
• docs: Laravel Database Migrations
• video: Database Migrations in Node.js