IANAL but here are some examples of things that I think are things that the law was intended to protect: 1.A real-estate database with information on many different houses. 2.The database at e.g. amazon.com containing details about a whole bunch of books 3.A database containing details of flights and prices for many different alrlines and etc
Individually, this information is probobly not something that deserves protection. But collectivly on the other hand...