The application reads configuration settings from the database.yml file
Make sure the database.yml file is properly configured for your environment
I need to update the database.yml file with the new credentials
The database.yml file specifies the connection parameters for the database
Check the database.yml file for any errors before starting the server
Have you looked at the server settings?
Yes, the configurations in database.yml look correct.
Good, let's deploy the application then.
The Rails app uses the configuration in database.yml for database settings
The application configures its database connection via a settings file
The database connection settings are stored in a configuration file