Availability:
:- use_module(library(semweb/rdf_persistency)).
rdf_persistency(+DB,
+Bool)false, the
journal and snapshot for the database are deleted and further changes to
triples associated with DB are not recorded. If Bool
is true a snapshot is created for the current state and
further modifications are monitored. Switching persistency does not
affect the triples in the in-memory RDF database.