Hi Jakub,
What is the Virtuoso version you are using (virtuoso-t -?) ?
Your call to DB.DBA.RDF_AUDIT_METADATA should be as follows ie you are missing
the single quote around '*' :
SQL> DB.DBA.RDF_AUDIT_METADATA(1, '*');
STAT MSG
VARCHAR VARCHAR
Hello, I am trying to learn how to use R2RML but I don't get any data in
return when I run basic.sql in iSQL.
http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtR2RML
How can I fix it?
OpenLink Interactive SQL (Virtuoso), version 0.9849b.
Type HELP; for help and EXIT; to exit.
SQL> LO
