What are database migrations and why are they important?

What are database migrations and why are they important?

Database migrations are processes that allow you to update your database schema over time. They are important because they help manage changes in your database structure without losing data.

Can you explain how to perform a database migration?

Sure! To perform a database migration, you typically create a migration file that defines the changes, then run a command to apply those changes to the database.

What tools can I use for database migrations?

There are several tools available, such as Flyway, Liquibase, and built-in migration tools in frameworks like Rails and Django.

Are there any best practices for managing database migrations?

Yes, some best practices include keeping migrations small, testing them in a staging environment, and maintaining a clear version history.