Can’t Select Database

In the process of upgrading to the most current version of WordPress, I lost the files in my blog folder on my ftp before I could back it all up. So I uploaded the new version of WordPress in my blog folder where all my old files were stored. Now When I try to run the install, I get this error:

We were able to connect to the database server (which means your username and password is okay) but not able to select the blog database.

* Are you sure it exists?
* Does the user rhubarb have permission to use the blog database?
* On some systems the name of your database is prefixed with your username, so it would be like username_wordpress. Could that be the problem?

Here is my config file:

define('DB_NAME', 'blog');    // The name of the database
define('DB_USER', 'rhubarb');     // Your MySQL username
define('DB_PASSWORD', '********'); // ...and password
define('DB_HOST', 'localhost');    // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8')
define('DB_COLLATE', '');