Compendium now uses Derby for its default database. Initially Compendium will open connected to this local default database.
However, Compendium can still be used with both local and remote copies of MySQL. In order to use Compendium with MySQL you must first set up a profile for each of the MySQL applications you wish to connect to, (see below for full details).
Creating MySQL Profiles
First go to the File Menu and select 'Database Administration'. This will then open the following dialog:

The first options on the dialog allows you to indicate that you wish to see the full path of the database connection in the Compendium application title bar. This is not checked by default, where instead of the full path you see just the current project name and if connected to a MySQL profile, the profile name in square brackets after.
By default, you will be set to use the default Derby database. If you check the 'Use a MySQL database' radio button the lower half of the dialog will become available, and allow you to set up MySQL application connection profiles.
You should then see the following:

You can now create a MySQL connection profile. Press the 'New' button and a small dialog will popup asking you for the name of the new profile as in figure 3 below:

Enter the name (this must be unique, i.e. not two profiles can have the same name). Then press 'OK'. Your new profile name will appear in the drop-down box beside the 'New' button and the default host name 'localhost' will be filled in the 'MySQL Host Address' field and the default user name 'root' will be filled in the 'MySQL User Name' field.
You can of course change these to match your MySQL installation whether local or remote, they are just defaults.
NB: You can include the port number as part of the Host Address field entry if your MySQL installation does not use the usual port by appending the host address with a colon followed by the port number, e.g. mysqlinstallation.com:3308
Once you have completed all the details press the 'Save' button. The 'Connect' button will then become available. Press the 'Connect' button.

If there are no Compendium projects in the MySQL application you have connected to, the 'New Project' dialog will be opened for you. If you have already connected before, created one or more projects and specified a default project, you would automatically be logged in (provided it is a local application). Otherwise, the 'Open Project' dialog will appear.
To delete a profile, select the profile from the drop-down box and press the 'Delete' button. Note: you cannot delete the profile you are currently connected to.
You can set up as many MySQL profiles as required, and then use the 'Database Administration' dialog to switch connections, or switch back to the local Derby database application.