Hi Alex,
> ----- Original Message -----
> From: Alex
> To: virtuoso-users@lists.sourceforge.net
> Sent: Thursday, June 28, 2012 5:55 PM
> Subject: [Virtuoso-users] Again Internal error: 'output:valmode'
> declarationconflicts with 'output:format'
>
>
> Hello there,
> I would like to use not exists in a query and I get the above error in isql.
>
>
> The pattern of the query is the following:
> sparql select count(distinct ?o) from <g> where{?s something ?o. filter not
> exists{?o something ?x}}
>
>
> What is the format that I should define in order to work? Could someone help
> me on this? Thanks.
The syntax of something ( as per your example ) should be correct so not to get
SPARQL error i.e. should be on of the followng:
<something>,
:something ,
some:thing ,
something:
and if the needed namespace prefixes etc.
Best Regards,
Rumi
