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.

This is an empty package depending on the current "best" version of the Virtuoso server framework, as recommended by the maintainers (currently virtuoso-opensource-7). Install this package if in doubt about which version you need.