Features Dbup is a simple migration tool that is written by PHP. You have only to download dbup.phar. Dbup has only up command. Dbup does not have down command. Dbup uses just a plain old sql, so you don't have to learn ORM nor DSL. You write sql file and just call up command. Dbup uses just PDO class to migrate. Dbup doesn't need the table of the migration status in a database to do up. Dbup uses