1.2 Key Terms and Concepts for Working with RDF Graphs
Learn the Oracle terminology and the concepts for working with the RDF graph feature in Oracle Database.
Although the terminology used in this guide for RDF concepts are very similar to the W3C RDF 1.1 terminology, there are some differences. The most significant difference is that the term RDF Graph in this document corresponds to RDF Dataset in W3C RDF 1.1 terminology.
The following table lists the Oracle RDF terminology and their corresponding mapping to the W3C RDF 1.1 terminology.
Table 1-1 Mapping Oracle and W3C RDF 1.1 Terms
| Oracle Terminology | Description | W3C RDF 1.1 Terminology |
|---|---|---|
| RDF Network | Zero or more RDF Graphs and built-in (such as OWL, RDFS, and so on) and any user-defined rulebases. | None |
| RDF Graph | Single Default Graph and zero or more Named Graphs. | RDF Dataset |
| Default Graph | Set of triples that are not associated with any graph name. It is a part of an RDF Graph. | Default (RDF) Graph |
| Named Graph | Set of triples, each associated with the same graph name. Each named graph is part of an RDF Graph. | Named (RDF) Graph |
| RDF Graph Collection | Set of RDF Graphs. | Merged RDF Datasets |
| Inferred Graph | RDF Graph comprising only the triples inferred using specified RDF Graphs and rulebases. | Entailed Graph, but excludes the triples asserted in the dataset. |
| RDFview Graph | Relational data (in one or more tables) viewed as RDF Graph using W3C RDB2RDF mapping. | RDF Dataset obtained from relational tables using W3C RDB2RDF mapping. |
The following diagram shows the structural representation of the Oracle RDF concepts described in the preceding table:
Parent topic: RDF Graph Overview