Cleaning up errant data using SPARQL Update Language.

All data endeavors involve varying degrees of prospective and retrospective error correction.

Given a triple in a Virtuoso Quad store that contains an errant URI e.g. one that accidentally contains spaces, here is a SPARQL example that showcases how to delete said triple using a built-in function:

DELETE FROM <your_graph>
    `iri(" Jones_107_12122011081257")`
     a <>