Halyard vs Virtuoso Universal Server
| Halyard | Virtuoso Universal Server | |
|---|---|---|
| Free trial | No | Yes |
| Platforms | api, Linux, macOS, self-hosted, Web | api, Linux, macOS, self-hosted, Web, Windows |
| Deployment options | hybrid | both |
| SPARQL support | sparql 1.1 | |
| Federated queries | Yes | |
| Supported RDF formats | N-Triples, RDF/XML, Turtle, N3, RDF/JSON, TriG, N-Quads, BinaryRDF, TriX, JSON-LD | |
| Free plan | Yes | |
| Deployment model | hybrid | |
| Semantic layer | Yes | |
| Access protocols | SQL, SPARQL, XQuery, XPath, ODBC, JDBC, UDBC, OLE DB, SOAP, REST, HTTP | |
| REST API access | Yes | |
| Query acceleration | Yes | |
| Deployment | both | |
| Supported data models | relational, RDF/graph, XML | |
| SQL support | Yes | |
| Graph querying | Yes |
Listed together in Best RDF Databases