emptyDatabase example

$io->comment('Drop database');
                    $database->dropDatabase($dbConfig['dbname']);
                    break;

                case 'create':
                    $io->comment('Create database');
                    $database->createDatabase($dbConfig['dbname']);
                    break;

                case 'clear':
                    $io->comment('Clear database');
                    $database->emptyDatabase($dbConfig['dbname']);
                    break;

                case 'import':
                    $io->comment('Import database');
                    $database->importFile($dbConfig['dbname'], $rootDir . '/_sql/install/latest.sql');

                    $migrationManger = new Manager($connection, $rootDir . '/_sql/migrations');
                    $migrationManger->run();
                    break;

                case 'importDemodata':