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|Modifying the RDF database|
The predicates below modify the RDF store directly. In addition, data may be loaded using rdf_load/2 or by restoring a persistent database using rdf_attach_db/2. Modifications follow the Prolog logical update view semantics, which implies that modifications remain invisible to already running queries. Further isolation can be achieved using rdf_transaction/3.
user. Subject and Predicate are resources. Object is either a resource or a term
literal(Value). See rdf/3 for an explanation of Value for typed and language qualified literals. All arguments are subject to name-space expansion. Complete duplicates (including the same graph and‘line' and with a compatible‘lifespan') are not added to the database.
|Graph||is either the name of a graph (an atom) or a term Graph:Line, where Line is an integer that denotes a line number.|