Aldo Bucchi wrote:
Hi Ivan,
Hi Ivan,
Thanks, I now see that the query I use works for another reason than I
thought. Time to refresh my SQL, it's been some time.
No, I think we need to actually make a SPASQL guide, something we've
sort of overlooked. Ironically, the most powerful aspect of Virtuoso is
SPASQL since this is the key to the best of SQL and SPARQL :-)
Rumi: We should add a SPASQL guide to the current SPARQL guide for the
SIOC based Linked Data Web that I am currently reviewing.
Kingsley
We are still coding most stuff through abstractions atop Sesame, you
see. But I guess once federation is in place there will be less and
less need to get out of the Virtuoso environment.
Thanks,
A
On Sun, May 17, 2009 at 9:31 AM, Ivan Mikhailov
<imikhai...@openlinksw.com> wrote:
Hello Aldo,
DISTINCT does not preserve the order, I'm afraid. Place it in subselect,
then sort in surrounding select.
Best Regards,
Ivan Mikhailov
OpenLink Software,
http://openlinksw.com
On Sat, 2009-05-16 at 23:55 -0400, Aldo Bucchi wrote:
Hi,
I ran the following query in order to get a quick glimpse at the
"schema" a graph.
SELECT DISTINCT
?clazz ?property max( ?sampleValue )
WHERE
{
?s a ?clazz .
?s ?property ?sampleValue
} ORDER BY ?clazz ?property
However, I can't get the ORDER BY clause to do what I need, which is
to group results by class and then by predicate.
Is this the expected behaviour?
Thanks,
A
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO
OpenLink Software Web: http://www.openlinksw.com
