To add a new database for multisite queries, click the add button, next to the Database dropdown to arrive to the Database Configuration screen (see Figure 3.3). In this example, parameters for Duke's FBIRN Oracle database is provided. All the available sites shown in the dropdown are read from from the nc_site table of the primary HID. The database id provided must be unique within all configured databases. After pressing Add button, you will arrive at the User/Database management panel for Duke (see Figure 3.4). You need to add a new database user to be able to connect the the newly added database (Duke's in this case). By clicking on the Add New Database User button, you will arrive at the User Configuration screen (see Figure 3.5), where you will enter the database user name and password. It is a good idea to test the database connection before adding the database user to the system. This can be accomplished by pressing Test Connection button. If the connection is successful, you will see a screen like in Figure 3.6. After this, click the Add button to add the database user to the system. The system will, in addition, create the mandatory 'admin' web user with the default password 'admin', which you should change immediately. The newly added database user and the mandatory admin user is shown in the Database/User Configuration panel in Figure 3.7. Here you can change the admin web user password by clicking on the Edit button. New web application users can be added by clicking on the Add New User button. Adding and removing privileges for the web application users are also managed in this panel. Here the admin web user for the secondary database duke_fbirn has manageExperiment and manageSubject privileges. The admin privilege is not available for secondary databases.