Database · easy

13. Migrations

Version-controlled schema changes.

Migrations are PHP files describing schema changes, created with php artisan make:migration and run with php artisan migrate. The Schema builder provides methods like create(), table(), and column definitions such as string(), integer(), and foreignId(). Rolling back with php artisan migrate:rollback reverses the last batch.

Check your understanding

1. Which command applies pending migrations?
php artisan db:seedphp artisan migratephp artisan schema:runphp artisan migrate:fresh --seed
2. What method defines a foreign key column referencing 'users'?
foreignId('user_id')->constrained()userKey()belongsTo('users')foreign('users')