RDF Metadata Tables and Views
Oracle AI Database maintains several tables and views in the network owner’s schema to hold metadata related to RDF data.
Some of these tables and views are created by the SEM_APIS.CREATE_RDF_NETWORK procedure, as explained in Quick Start for Using Semantic Data, and some are created only as needed.Table: RDF Metadata Tables and Views lists the tables and views in alphabetical order. (In addition, several tables and views are created for Oracle internal use, and these are accessible only by network owners of the schema-private RDF networks).
Table: RDF Metadata Tables and Views
| Name | Contains Information About | Described In |
|---|---|---|
| RDF_CRS_URI$ | Available EPSG spatial reference system URIs | Spatial Support |
| RDF_VALUE$ | Subjects, properties, and objects used to represent statements | Statements |
| SEM_DTYPE_INDEX_INFO | All data type indexes in the network | Using Data Type Indexes |
| SEM_MODEL$ | All RDF graphs defined in the database | RDF Graphs |
| SEM_NETWORK_INDEX_INFO$ | RDF network indexes | SEM_NETWORK_INDEX_INFO View |
| SEM_RULEBASE_INFO | Rulebases | Inferencing: Rules and Rulebases |
| SEM_RULES_INDEX_DATASETS | Database objects used in inferred graphs | Inferred Graphs |
| SEM_RULES_INDEX_INFO | Inferred graphs | Inferred Graphs |
| SEM_VMODEL_INFO | RDF graph collections | RDF Graph Collections |
| SEM_VMODEL_DATASETS | Database objects used in RDF graph collections | RDF Graph Collections |
| SEMCL_inferred-graph-name | owl:sameAs clique members and canonical representatives |
Optimizing owl:sameAs Inference |
| SEMI_inferred-graph-name | Triples in the specified inferred graph | Inferred Graphs |
| SEMM_rdf-graph-name | Triples in the specified RDF graph | RDF Graphs |
| SEMR_rulebase-name | Rules in the specified rulebase | Inferencing: Rules and Rulebases |
| SEMU_rdf-collection-name | Unique triples in the RDF graph collection | RDF Graph Collections |
| SEMV_rdf-collection-name | Triples in the RDF graph collection | RDF Graph Collections |