title: How to list all all graphs in Virtuoso?
body: <p>When I go to <code>http://localhost:8890/sparql/</code>, there are two fields: <code>Default Data Set Name (Graph IRI)</code> and <code>query</code>. How can I list what all graphs (that go in the former field) are available in my DB? The field is not mandatory and I can just run a query against all namespaces. But I would like to know how to list the graphs available.</p>
  
  <p>The only non-empty graph I was able to run was <code>http://localhost:8890/sparql</code></p>
  
  <p>For example, in a relational database environment, I believe this kind of info could be retrieved from system tables. </p>