SEM_APIS.GET_TRIPLE_ID

Format

SEM_APIS.GET_TRIPLE_ID(
     model_id       IN NUMBER,
     subject        IN VARCHAR2,
     property       IN VARCHAR2,
     object         IN VARCHAR2,
     network_owner  IN VARCHAR2 DEFAULT NULL,
     network_name   IN VARCHAR2 DEFAULT NULL
) RETURN VARCHAR2;

SEM_APIS.GET_TRIPLE_ID(
     model_name     IN VARCHAR2,
     subject        IN VARCHAR2,
     property       IN VARCHAR2,
     object         IN VARCHAR2,
     network_owner  IN VARCHAR2 DEFAULT NULL,
     network_name   IN VARCHAR2 DEFAULT NULL
) RETURN VARCHAR2;

Description

Returns the ID of a triple in the specified semantic technology model, or a null value if the triple does not exist.

Parameters

model_id

ID number of the semantic technology model. Must match a value in the MODEL_ID column of the SEM_MODEL$ view, which is described in RDF Graphs.

model_name

Name of the semantic technology model. Must match a value in the MODEL_NAME column of the SEM_MODEL$ view, which is described in RDF Graphs.

subject

Subject. Must match a value in the VALUE_NAME column of the RDF_VALUE$ table, which is described in Statements.

property

Property. Must match a value in the VALUE_NAME column of the RDF_VALUE$ table, which is described in Statements.

object

Object. Must match a value in the VALUE_NAME column of the RDF_VALUE$ table, which is described in Statements.

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

This function has two formats, enabling you to specify the semantic technology model by its model number or its name.

Examples

The following example returns the ID number of a triple. (This example is an excerpt from Example: Using an RDF Graph for Journal Article Information in Example: Journal Article Information.)

SELECT SEM_APIS.GET_TRIPLE_ID(
  'articles',
  'http://nature.example.com/Article2',
  'http://purl.org/dc/terms/references',
  'http://nature.example.com/Article3') AS RDF_triple_id FROM DUAL;

RDF_TRIPLE_ID
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