An enquiry about the protection of online database's copyright

In the digital libraries,databases have the uniqueness in both full-texts and document structures,which are stored and withdrawn by a certain form to provid for the users.It enjoys the protection of copyrights,which belongs to the scope of the explanatory copyrights by the Supreme People's Court.The article makes a probe into the protection of copyrights of the databases in digital libraries from the following angles of legal,economic and technical means.