Hi Francesco,
Have you tried running the DB.DBA.RDF_AUDIT_METADATA() function which can check
and repair corruption in the RDF Metadata as detailed at:
http://docs.openlinksw.com/virtuoso/fn_rdf_audit_metadata.html
If that does not resolve the problem then are you able to provide a test case
for reproducing ?
Also, what Virtuoso release is being used ?
Best Regards
Hugh Williams
Professional Services
OpenLink Software, Inc. // http://www.openlinksw.com/
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> On 17 Aug 2015, at 21:03, Francesco Balzu <i_ba...@hotmail.it> wrote:
>
> Hi !
> I have the following problem with Virtuoso: when I open the "Views" tab from
> Conductor and generate a mapping using the default mapping, I get the
> following log
>
>
> 22023 SR528: Uninitialized property qmvcColumnName in JSO instance
> <sys:qmv-774944251d863e96af7ebee7ed051e3f-col-tbl0-"observationID"> of type
> <http://www.openlinksw.com/schemas/virtrdf#QuadMapColumn>
> 42000 The previous error can not be fixed automatically. Sorry.
>
> and no graph is created, except a graph with few rows containing the schema
> of the mapping. Anyway, no row from the relational database is mapped.
>
> The first time I got this 'error' I reinstalled Virtuoso and everything was
> fine, but after a while I still have the same problem of the first time.
>
> I uninstalled and reinstalled the r2rml vad package but nothing happened.
> I tried to use the procedure DB.DBA.TTLP(...) as it is explained in the
> documentation but I still get the same result.
>
> I tried to google it but I found nothing about this message, that's why I'm
> asking you.
>
>
> Any help would be appreciated!!
>
> Thanks for your time and availability.
> Best regards,
> Francesco Balzano.
>
>
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