What are Django database migrations?

What are Django database migrations?

Django database migrations are a way to manage changes to your database schema over time. They allow you to create, modify, and delete database tables and fields in a structured manner.

How do I create a new migration in Django?

You can create a new migration by running the command python manage.py makemigrations. This will generate a migration file based on the changes you've made to your models.

Can I roll back a migration?

Yes, you can roll back a migration using the command python manage.py migrate <app_name> <migration_name>. This will revert your database to the state defined by the specified migration.

What happens if I forget to run migrations after changing models?

If you forget to run migrations, your database schema will not reflect the changes made in your models, which can lead to errors when trying to access or manipulate data.