OpenLink Virtuoso is a high-performance object-relational SQL database. It provides transactions, a smart SQL compiler, hot backup, SQL:1999 support, a powerful stored-procedure language supporting server-side Java or .NET, and more. It supports all major data-access interfaces, including ODBC, JDBC, ADO.NET, and OLE/DB.

Virtuoso supports SPARQL embedded into SQL for querying RDF data stored in its database. SPARQL benefits from low-level support in the engine itself, such as SPARQL-aware type-casting rules and a dedicated IRI data type.

Install this metapackage for the full suite of packages that make up Virtuoso OSE ("Open-Source Edition").