WARNING! Changing the settings here can make the whole Mambo installation unavailable. If so is done, you will need to insert the correct settings directly in the configuration.php file in Mambo's root.
The values in all these fields depends on how the server is set up, consult the server admin if you don't know the details.
Hostname
This is the hostname of the SQL database. Usually this is localhost.
MySQL username and password
These thow fields should contain the username and password used to connect to the database specified in the MySQL Database-field.
MySQL Database
The name of the database located on the specified hostname.
MySQL Database Prefix
The database prefix is added to all the database tables. That means that if the prefix is "mos_" and the table is named "components", the table will be named "mos_components" in the database. This ensures that there will be no overlapping if the database is used with multiple applications.
For example, you can have two Mambo installations on the same server, as long as they don't have the same prefix. See the article "Have More Than One Mambo Installation on the Same Server" for more details about this.