SWI-Prolog -- rdf_save

Documentation
- Reference manual
- Packages
  - SWI-Prolog Semantic Web Library 3.0
    - Two RDF APIs
      - library(semweb/rdf_db): The RDF database
        
        Loading and saving to file
        
        rdf_load/1
        
        rdf_load/2
        
        rdf_unload/1
        
        rdf_save/1
        
        rdf_save/2
        
        rdf_make/0
        
        rdf_save_header/2
        
        rdf_save_footer/1
        
        rdf_save_subject/3
        
        rdf_save_db/1
        
        rdf_save_db/2
        
        rdf_load_db/1

Availability::- use_module(library(semweb/rdf_db)).

[det]rdf_save_db(+File)

[det]rdf_save_db(+File, +Graph)

Save triples into File in a quick-to-load binary format. If Graph is supplied only triples flagged to originate from that database are added. Files created this way can be loaded using rdf_load_db/1.