Hi, Claus -- On Apr 2, 2010, at 01:45 PM, Claus Stadler wrote: > Does Virtuoso (or any other triple store) support the definition > of an alias for a set of named graphs such as defining > <http://ex.org> to refer to a set of graphs such as > <http://ex.org/1> ... <http://ex.org/n>
I think the answer you're looking for may be found here in the online docs -- <http://docs.openlinksw.com/virtuoso/rdfgraphsecurity.html#rdfgraphsecuritygroups> It would be nice to create named lists of graphs and a clause like "SELECT from all graph names of the specified list". "Graph groups" serve for this purpose. That is Virtuoso-specific SPARQL extension that let create a named list of IRIs such that if name of the list is used in FROM clause like IRI of default graph then it is equivalent to list of FROM clauses, one clause for each item of the list. I hope that helps, Ted -- A: Yes. http://www.guckes.net/faq/attribution.html | Q: Are you sure? | | A: Because it reverses the logical flow of conversation. | | | Q: Why is top posting frowned upon? Ted Thibodeau, Jr. // voice +1-781-273-0900 x32 Evangelism & Support // mailto:tthibod...@openlinksw.com // http://twitter.com/TallTed OpenLink Software, Inc. // http://www.openlinksw.com/ 10 Burlington Mall Road, Suite 265, Burlington MA 01803 http://www.openlinksw.com/weblogs/uda/ OpenLink Blogs http://www.openlinksw.com/weblogs/virtuoso/ http://www.openlinksw.com/blog/~kidehen/ Universal Data Access and Virtual Database Technology Providers
