SEM_APIS.CREATE_SPARQL_INFERRED_GRAPH

Format

SEM_APIS.CREATE_SPARQL_INFERRED_GRAPH(
     inferred_graph_name        IN VARCHAR2,
     rdf_graphs_in              IN SEM_MODELS,
     sparql_rule_tab_owner      IN VARCHAR2,
     sparql_rule_tab            IN VARCHAR2,
     sparql_rule_col            IN VARCHAR2,
     match_options_col          IN VARCHAR2,
     update_options_col         IN VARCHAR2,
     sparql_rule_maxiter        IN PLS_INTEGER,
     options                    IN VARCHAR2 DEFAULT NULL,
     network_owner              IN VARCHAR2 DEFAULT NULL,
     network_name               IN VARCHAR2 DEFAULT NULL);

Description

Creates a SPARQL inferred graph (rules index).

Parameters

inferred_graph_name

Name of the inferred graph to be created.

rdf_graphs_in

One or more RDF graph names. Its data type is SEM_MODELS, which has the following definition: TABLE OF VARCHAR2(25)

sparql_rule_tab_owner

Owner of the table that contains SPARQL rules.

sparql_rule_tab

Name of the table that contains SPARQL rules.

sparql_rule_col

Name of the column that contains SPARQL rules.

match_options_col

Name of the column that contains match options.

update_options_col

Name of the column that contains SPARQL update options.

sparql_rule_maxiter

The maximum number of iterations that the inference engine should run. If the transitive closure is reached before the specified max iterations, the inference stops. If the value 0 is specified, the inference engine will run until the transitive closure is reached or the maximum 2G iterations have been executed.

options

A string of options to control the inference process by overriding the default inference behavior.

To enable an option, specify <option-name>=T; to disable the option, you can specify <option-name>=F (the default).

The available option name value is NO_SPARQL_RULE_CHECK. See the Usage Notes for more explanation of the value.

network_owner

Owner of the RDF network. (See Table: network_owner and network_name Parameters.)

network_name

Name of the RDF network. (See Table: network_owner and network_name Parameters.)

Usage Notes

For the options parameter, you can specify NO_SPARQL_RULE_CHECK=T to bypass the SPARQL rule check for rules stored in a user’s table. The SPARQL rules are checked to make sure they are conformant to INSERT DATA or INSERT WHERE specification.

Examples

The following example creates a SPARQL inferred graph named SI1 using the SPARQL rules stored in the SPARQL_TAB table.

SQL> exec sem_apis.create_sparql_inferred_graph('SI1', sem_models('M1'),'RDFUSER','sparql_tab','Rule', 'matchOpt', 'updOpt', 3, network_owner=>'RDFUSER', network_name=>'NET1');
PL/SQL procedure successfully completed.