Oracle Graph
Oracle's graph database capabilities within Oracle Database, supporting both property graphs (SQL/PGQ and PGQL) and RDF/SPARQL. Includes in-memory graph analytics with 60+ built-in algorithms.
- Overall rank
- #30
- First released
- 2005
- License
- Proprietary
- Built with
- Java
Sources 6 references
Protocols JDBC/ODBC, HTTP/REST, SPARQL Protocol
PGX JDBC driver and SQL/PGQ-over-JDBC cover JDBC/ODBC; the PGX Graph Server REST API and ORDS network/model-management endpoints are a genuine non-SPARQL REST API; the ORDS RDF Graph sparql/1.1 endpoints explicitly implement SPARQL 1.1 Protocol (linked to the W3C spec), so pass_A's inclusion of SPARQL Protocol is correct and pass_B's omission of it is wrong.
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Starting from Graph Server and Client Release 24.1.0, you can use the PGX JDBC driver to access a PGX session and query graphs that are loaded in to the graph server (PGX).
Executing PGQL Queries Using the PGX JDBC Driver · reviewed 2026-08-02 -
Get the list of all graphs that belong to a user.
Graph Server REST API Version 1 · reviewed 2026-08-02 -
Executes a SPARQL query and returns the result in JSON format (application/sparql-results+json) or XML format (application/sparql-results+xml) for SPARQL SELECT and ASK queries
Oracle REST Data Services API - Execute a SPARQL query · reviewed 2026-08-02
License Proprietary
Confirms the current value. Graph features ship inside Oracle Database under Oracle's commercial database license (no extra-cost option since Dec 2019, but still requires a licensed Oracle Database edition).
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Property Graph and RDF Graph Technologies (RDF/OWL) no longer requires an extra cost license. See Oracle Database Insider blog post for more information.
Database Licensing Information User Manual · reviewed 2026-08-02
Released 2005
Confirms the current value. Oracle's own team traces "Oracle Graph" to the RDF Knowledge Graph feature first shipped in Oracle Database 10g Release 2.
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First release of RDF Knowledge Graph was Oracle 10g R2 (2005)
What's New with Oracle Spatial and Graph · reviewed 2026-08-02
Language Java
Confirms the current value with a caveat: Oracle Graph is split. The RDF/property-graph storage lives inside the C-based Oracle Database kernel, but the headline graph analytics engine (PGX, Parallel Graph AnalytiX) that Oracle Graph leads with is written in Java, with a C++ distributed runtime variant.
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PGX was an official Database add-on, and because the database is officially released for Windows they had to release PGX for Windows as well. PGX is written in Java
Property Graph release 20.1.0: a new packaging · reviewed 2026-08-02