When I try running upgrade.php, I get the following error message:
Error establishing a database connection
This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at localhost. This could mean your host's database server is down.
* Are you sure you have the correct username and password?
* Are you sure that you have typed the correct hostname?
* Are you sure that the database server is running?
Now I know I have the database user name and password in the wp-config.php file. Does anyone have any suggestions?