Mapping & SPARQL

Stardog Studio
1
  1. I am trying to query the virtual graph using SPARQL, queried multiple node but getting 0 results every time. what can be the issues?
    Sample query -

PREFIX E_Part: tag:stardog:designer:E_Part_Project:E_Part_Model:

SELECT ?number ?id ?load_timestamp
WHERE {
E_Part:En_raw_material_t En_Parts:cas_id ?number
}

  1. How can we perform the data mapping from Databricks Unity Catalog tables and how do we validate the data has been mapped correctly?
2

Hi Gourav and welcome to the Stardog Community!

We highly recommend taking advantage of our virtual training videos when getting started with Stardog. These courses will help you become familiar with Knowledge Graphs, Stardog, and our tools.

In these courses we cover modeling and mapping as well as mapping validation.

Thanks,
Laura