how to put Wordpress website online

hi my laptop stopped working so i erased everything but i always take backups i have my WordPress file now i don"t really know how to create table again in mamp when i am trying to access my website on mamp it shows me We were able to connect to the database server (which means your username and password is okay) but not able to select the Dennisleather database. can anyone please help thanks in advance.

   /** The name of the database for WordPress */
  define('DB_NAME', 'Dennisleather');

 /** MySQL database username */
 define('DB_USER', 'root');

 /** MySQL database password */
 define('DB_PASSWORD', 'root');

 /** MySQL hostname */
 define('DB_HOST', 'localhost');

 /** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8mb4');

/** The Database Collate type. Don't change this if in doubt. */
 define('DB_COLLATE', '');

define( 'WP_AUTO_UPDATE_CORE', false );

via Chebli Mohamed