4s-import(1j) [debian man page]

4S-IMPORT(1J)							      4store							     4S-IMPORT(1J)

NAME

     4s-import -- Import RDF into a 4store KB

SYNOPSIS

     4s-import kbname [-v] [-a] [-M default-model] [-m model] [-f format] [rdf-file] ...

	       -v, --verbose
		       Increase verbosity (by default success is silent)

	       -a, --add
		       Ordinarily importing RDF to a model replaces any previous contents of that model, by using the --add flag this behaviour is
		       overridden and any triples which were previously in the model are retained.

	       -M, --model-default
		       Set a model (graph) URI which is used by default for all imported files

	       -m, --model
		       Set a model (graph) URI for the next named file only (overrides -M if it has been used)

	       -f, --format
		       Tell the RDF parser the format of the files (if not specified the parser will guess)

SEE ALSO

     4s-query(1), 4s-size(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1)

EXAMPLES

     $ 4s-import demo one.ttl two.xrdf

     Imports two files into the demo KB, each as a separate model (graph) guessing the RDF format used for each file

     $ 4s-import demo -M http://example.com/menu starters.ttl mains.ttl sweets.ttl

     Imports three files into a single graph named <http://example.com/menu>

4store								   May 31, 2019 							    4store

4S-QUERY(1J)							      4store							      4S-QUERY(1J)

NAME

     4s-query -- Run SPARQL queries on a 4store storage backend

SYNOPSIS

     4s-query kb-name [-f format] [-O optimisation-level] [-I insert-mode] [-r] [-s soft-limit] [-b base-URI] [-e] [-P] [query]

	      -f      Set the format to output results it, options are "sparql", "text", "json", and "testcase"

	      -O, --opt-level
		      Set the optimisation level of the query engine, in the range 0-3.

	      -I, --insert
		      Treat CONSTRUCT statements as INSERT statements. This feature is highly experimental and largly untested.

	      -r, --restricted
		      Enable query complexity restriction mode

	      -s, --soft-limit
		      Override default soft limit on search breadth

	      -d, --default-graph
		      Enable SPARQL default graph support

	      -b, --base
		      Set base URI for queries

	      -e, --explain
		      Return an explanation of the query planner's descisions

	      -P      Enable programatic IO mode

INTERACTIVE MODE

     If [query] is ommited then 4s-query goes into interactive mode, suitable for trying queries from the command line.

     -P enables programatic interactive mode, suitable for infacing with processes via stdin and stdout. Queries are sent as UTF-8 bytes, termi-
     nated with "#EOQ" on a line of it's own, results are returned, ending with "#EOR".  Interacting with 4store in this way is more efficient
     than using the SPARQL protocol, but non-standard.

SEE ALSO

     4s-import(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1)

STANDARDS

     4s-query implements the SPARQL Query Language specification (aka. SPARQL/Query 1.0) and the SPARQL Result Format specification (aka.
     SPARQL/Results 1.0).

     Default graph support is no normally enabled, the --default-graph turns it on, as does speicfying FROM <default:> in the query. Data loaded
     with

     $ 4s-import kb --add -m default: uri/filename

     will be added to the default graph.

EXAMPLES

     $ 4s-query -f sparql demo 'SELECT * WHERE { ?s ?p ?s } LIMIT 10'

     Return 10 random triples from the knowledgebase "demo" in the SPARQL XML result format.

     $ 4s-query -P demo < query.rq

     Run the query in query.rq and output the result to stdout

4store								   May 31, 2019 							    4store