Who Am I?

Why?

Identity is the root of many challenges that arise during system usage troubleshooting, especially in situation where fine-grained attribute-based access controls are in use. Thus, it imperative that you (the identity principal) possess knowledge about how to you are being identified to a Virtuoso instance.

Basically, this is about Virtuoso's equivalent of the "whoami" command on Unix and Linux.

What?

How to determine your Virtuoso SQL session identity, following a successful login.

How?

  1. SQL through, for instance, iSQL: 

    SELECT get_user();

  2. SPASQL (SPARQL-in-SQL) through, for instance, iSQL: 

    SPARQL SELECT bif:get_user() {};

  3. SPARQL through, for instance, the /sparql input form: 

    SELECT bif:get_user() {}

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