The installation of the MonetDB suite includes a tutorial database covering the East-Indian Trading corporation voyages over several centuries of trading. To check if this demo has already be installed try:
mclient -d voc
If it replies with an SQL prompt, you are ready to explore. Otherwise, follow the Tutorial to install the tutorial database.
The monetdb server accepts by default database administrator credentials name/password as monetdb/monetdb. Its password should be changed when you have created a new database. You can save the name/password in a file in your home directory ~/.monetdb to simplify connections.