It is easy to retrieve all of the Pilot instances from the database: just right-click the Pilot class in db4o Browser and select "View All Objects". The list of the Pilot objects will be shown in the Query Result view:
You can see object details in the detailed view below. Try to change any values and use Save button to persist the changes to the database. You can also use Delete button to delete objects from the database. For the objects containing field objects you will be prompted to use cascade on delete.
More complex queries can be done by using Build Query view:
Drag "points" field from the db4oBrowser view into the Build Query view, set condition "Greater Than", put a value "99" and run the query. You can return to the Built Query tab and modify the query later on again. For example: add "AND" operator, drag "name" field and set the value to "Michael Schumacher". Re-run the query.
When the new query is created, the previous query is stored and can be selected from the history drop-down:
More sophisticated queries can be build by joining grouped constraints using "Add Group" button.
When you
are done working with the database in OME, you can close the connection by
using OME->Connect/Disconnect DB menu command or by using the equivalent
button on the toolbar.