How Do I assign SPARQL roles to SQL users? The following Guide presents a sample scenario of how to assign SPARQL roles (for example, SPARQL_SELECT) to Virtuoso SQL user: Load http://<cname>[:<port>]/conductor (e.g., http://virtuoso.example.com:8890/conductor) in your browser. Enter credentials for a user with DBA permissions. Go to System Admin -> User Accounts:

Click Edit (in the far right column) for the user to whom you wish to assign the role (e.g., demo):

From the Account Roles drop-down menu, select the desired SPARQL Role (e.g., SPARQL_SELECT), and click the ">>" button:

Click Save. Related Virtuoso Tips and Tricks Collection