# Angel3 Migration Runner  [](https://dart.dev/null-safety) [](https://gitter.im/angel_dart/discussion) [](https://github.com/dart-backend/angel/tree/master/packages/orm/angel_migration_runner/LICENSE) Database migration runner for Angel3 ORM. Supported database: * PostgreSQL 10.x or greater * MariaDB 10.2.x or greater * MySQL 8.x or greater ## Usage * Use `PostgresMigrationRunner` to perform database migration for PostgreSQL. * Use `MySqlMigrationRunner` to perform database migration for MySQL and MariaDB. This runner is using [`mysql_client`](https://pub.dev/packages?q=mysql_client) driver. * Use `MariaDbMigrationRunner` to perform database migration for MariaDB. This runner is using [`mysql1`](https://pub.dev/packages?q=mysql1) driver. ## Supported Operations * reset - Clear out all records in the `migrations` table and drop all the ORM related tables. * up - Generate all the tables based on the ORM models. * refresh - Run `reset` follow by `up` ## To do * Update existing tables * Reverse engineer tables into models