title: Laravel 5.2 how to update migration without losing data
body: <p>I'm using laravel 5.2 and I usually update my database according to project requirements, so I'd like to do it without losing database records.
  I don't mean how to seed my database.. I mean when my database is live and I want to update it throw laravel migration.
  I was going throw <a href="https://laravel.com/docs/5.2/migrations" rel="noreferrer">Laravel Documentation</a> but I found nothing, so I hope to find somebody help me</p>