PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • SELECT * FROM table_name WHERE id_number IS NULL;If you are interested in optimising that query in particular then you could create an index:
http://www.w3.org/ns/prov#wasQuotedFrom
  • oracle.com