Description:

At core, Virtuoso is a high-performance object-relational SQL database. As a
database, it provides transactions, a smart SQL compiler, powerful
stored-procedure language with optional Java and .Net server-side hosting,
hot backup, SQL-99 support and more.

It has all major data-access interfaces, such as ODBC, JDBC, ADO .Net and
OLE/DB.

Virtuoso has a built-in web server which can serve dynamic web pages written
in Virtuoso's web language (VSP) as well as PHP, ASP .net and others. This
same web server provides SOAP and REST access to Virtuoso stored procedures,
supporting a broad set of WS protocols such as WS-Security, WS-Reliable
Messaging and others. A BPEL4WS run time is also available as part of
Virtuoso's SOA suite.

Virtuoso has a built-in WebDAV repository. This can host static and dynamic
web content and optionally provides versioning. The WebDAV repository is
tested to interoperate with WebDAV clients built into Windows XP, Mac OSX
and others and makes Virtuoso a convenient and secure place for keeping
one's files on the net.

Further, Virtuoso provides automatic metadata extraction and full text
searching for supported content types.

OpenLink Virtuoso supports SPARQL embedded into SQL for querying RDF data
stored in Virtuoso's database. SPARQL benefits from low-level support in
the engine itself, such as SPARQL-aware type-casting rules and a dedicated
IRI data type. This is the newest and fastest developing area in Virtuoso.