Execute SPARQL Updates Using the CGE Update Interface

Procedure for executing SPARQL updates via the CGE SPARQL Update interface

The Cray Graph Engine (CGE) Update Interface enables executing SPARQL updates on a database. SPARQL update is a language extension to SPARQL 1.1 that makes it possible to make updates to an active RDF database, using SPARQL query syntax. Use the CGE Update Interface to perform a number of tasks, including updating the default database to add or remove RDF triples and quads, copying or moving the contents of one database to another, and performing multiple update operations in a single action.

  1. Optional: Log on to the CGE UI by pointing a browser at http://machine-login1:3756/login, entering credentials and then selecting the Login button.
    This step is optional, depending on how the interface has been configured.
  2. Access CGE's Update Interface by selecting one of the following mechanism:
    • Point a browser at http://machine:3756/dataset/update 
    • Select Sparql Update from the Data Access drop down on the CGE UI.
    Figure: CGE Update Interface
  3. To execute a SPARQL update, enter the update statement into the SPARQL Update field.
  4. Select the Run Update button to submit the update for processing. Once the system has finished executing the update, it will send either a success/failure message as appropriate.