Hi: I have followed the instruction on http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtBulkRDFLoaderExampleDbpediaand successfully loaded a few core datasets but ran into error "page_links_en.nt.gz error 23000 SR133: Can not set NULL to not nullable column 'DB.DBA.RDF_QUAD.O'". I converted all data files from .bz2 to .gz after downloading. I am running the opensource version of virtuoso 5.0.12 on ubuntu.
Would appreciate any help. Thanx. Regards Howard
