DataStax aren't publishing any customers for this product yet but Dutch bank ING has shown an early interest.
Larry Ellison © Oracle
Oracle offers spatial and graph options for its flagship database product. Oracle has a first mover advantage over competitors like SAP and IBM as one of the first major IT vendors entering the graph database space over two years ago for its NoSQL database.
Oracle's Big Data Spatial and Graph analytics tools are Apache Hbase and Oracle NoSQL database compliant.
Oracle has a property graph, as well as an RDF graphs and network data model graph. The Oracle solution tends to be used more for knowledge management; so metadata, taxonomy and ontology, with customers like Bloomberg and Thomson Reuters attesting to these use cases.
Oracle says the product is good for: "Social network analysis to linked open data and network graphs used in transportation, utilities, energy and telcos and drive-time analysis for sales and marketing applications"
OrientDB has also been recognised by Gartner in its Operational DBMS Magic Quadrant, alongside Neo4j. According to OrientDB themselves the database is different from Neo4j's, in that: "While Neo4j is a pure graph database, OrientDB has a hybrid document-graph engine that adds some compelling features to the graph database model.
OrientDB was first released in 2010 and the open-source database supports schema and schemaless modes. Similar to DataStax, Orient is keen to be seen as a multimodel engine for a range of use cases, be it transactional or operational for fraud detection, customer 360 and social networking.
Customers deploying OrientDB include CenturyLink, Ericsson, Pitney Bowes, Sky, and Warner Music.
Stardog © Complexible
Stardog is the 'smart graph database' from US-software company Complexible. Stardog has a particular focus on OWL and RDF-based systems, with the latest release supports the SPARQL and Gremlin query languages. A key feature for Stardog is graph versioning to track changes.
Featured customers include NASA, JP Morgan Chase and Viacom. Stardog is priced for community, developer and enterprise tiers, with community free to download and use for up to four users and ten databases.
AllegroGraph is software developed by semantic web specialists Franz Inc. According to Forrester's Noel Yuhanna: "Franz is the key developer, contributor, and supporter of AllegroGraph, a semantically enhanced graph database that focuses on W3C standards and is commercially licensed with open source extensions."
The AllegroGraph product has a strong use case for event processing where "applications benefit from ontologies, reasoning, rules, and linked open data", says Yuhanna.
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