Which 'international database' do you mean?
There are of course several up and running including:
1. the INTERPOL one managed by the Canadian 'Mounties'
http://www.rcmp-grc.gc.ca/
2. Museum Security Network (run out of the Netherlands, with daily postings of losses and other events): http:/museum-secuirty.org/
3. Art Loss Register, London (with funding support from the insurance market, leading auction houses etc. - and with a New York associate IFAR - International Foundation for Art Research):
http://www.artloss.com
Also the International Council of Museums (ICOM) is active in this area (see
http://www.icom.org/ ) and has postings on individual cases from time to time - there's an account of one African sculpture recovery through ICOM on the server at hte moment) though it does not attempt to duplicate the INTERPOL database.
Patrick Boylan