Hi Andreas,

Please see the following documentation on configuring Virtuoso for wide 
character / unicode / UTF-8 support:

http://docs.openlinksw.com/virtuoso/wideidentifiers.html
http://docs.openlinksw.com/virtuoso/dbadm.html#ini_Client
http://docs.openlinksw.com/virtuoso/dbadm.html#ini_HTTPServer

Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
Support: http://support.openlinksw.com
Forums: http://boards.openlinksw.com/support
Twitter: http://twitter.com/OpenLink

On 29 Nov 2010, at 14:05, Andreas Kahl wrote:

> Hello everyone, 
> 
> I am currently evaluating Virtuoso-Opensource and have loaded some data. Now 
> I am trying to query the data with the Faceted Search & Find service (fct) 
> and via SPARQL. In both I get an error (fct) or empty result set (SPARQL) if 
> I use characters outside ASCII-Space (e.g. german Umlauts). 
> 
> Concerning SPARQL, the manual says: "Unicode characters in names are not 
> supported." 
> http://docs.openlinksw.com/virtuoso/rdfsparql.html
> 
> Does this mean that using non-ASCII-characters in queries is impossible with 
> Virtuoso, or is there some option to activate unicode support? 
> 
> Thanks for your help.
> 
> Andreas
> 
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