SEM_APIS.GRANT_RDF_GRAPH_ACCESS

Format

SEM_APIS.GRANT_RDF_GRAPH_ACCESS_PRIVS(
     rdf_graph_name  IN VARCHAR2, 
     user_name       IN VARCHAR2,
     priv_list       IN SYS.ODCIVARCHAR2LIST, 
     user_view       IN VARCHAR2 DEFAULT NULL, 
     options         IN VARCHAR2 DEFAULT NULL,
     network_owner   IN VARCHAR2 DEFAULT NULL,
     network_name    IN VARCHAR2 DEFAULT NULL);

Description

Grants access privileges on an RDF graph or inferred graph.

Parameters

rdf_graph_name

Name of the RDF graph.

user_name

Database user that is recipient of this privilege.

priv_list

Specifies the list of privileges that are granted. Currently allowed values include the following:

QUERY: Query the RDF graph using SPARQL
SELECT, READ: Retrieve the RDF graph content using SQL. The source for the content is the RDFT_<rdf_graph_name> view in the network owner's schema or the view name, if any, specified for the user_view parameter.
INSERT, UPDATE, DELETE: Perform SPARQL Update (DML) operations on the RDF graph or SQL DML operations. For SQL DML, the target object is the RDFT_<rdf_graph_name> view in the network owner's schema.

Note:

QUERY is the only valid choice if the RDF graph is not a regular graph (that is, not created using sem_apis.create_rdf_graph).

user_view

Applicable to schema-private network only. If a view was created on the RDFT_<rdf_graph_name> view at RDF graph creation time using sem_apis.create_rdf_graph or later, privileges are granted on that view.

options

If user specifies the word ENTAILMENT as part of the string value, then the specified rdf_graph_name is taken as the name of an inferred graph (rules index).(Additional words or phrases may be allowed in future.)

network_owner

Owner of the RDF network. (See Table 1-2.)

network_name

Name of the RDF network. (See Table 1-2.)

Usage Notes

The recipient must already have query-only or full access to the RDF network (which guarantees access to dictionary tables, but not individual RDF graphs). This operation grants access to the specified RDF graph.

Examples

The following example grants privileges to perform DML operations against a semantic technology RDF graph named articles in the schema-private network NET1 owned by database user RDFUSER. (This example refers to the RDF graph described in Example 1-129.)

EXECUTE SEM_APIS.GRANT_RDF_GRAPH_ACCESS_PRIVS('articles', 'USER1', sys.odcivarchar2list('INSERT','UPDATE','DELETE'), network_owner=>'RDFUSER', network_name=>'NET1');