public boolean createUsersTable() {
		String createUser = "CREATE TABLE IF NOT EXISTS users (user_id INTEGER PRIMARY KEY AUTOINCREMENT, login varchar(255) NOT NULL UNIQUE, password varchar(255), role varchar(255))";
		
		try {
			statement.execute(createUser);
		} catch(SQLException e ) {
			e.printStackTrace();
			return false;
		}
		return true;
		
	}