OpenLink Virtuoso is a middleware and database engine hybrid that combines the functionality of a traditional RDBMS, ORDBMS, virtual database, RDF, XML, free-text, web application server and file server functionality in a single server product offering.
In other words the software provides transparent real-time access to disparate data sources (ODBC, JDBC, XML, and Web Services), and transparent integration of disparate application logic (e.g. Mono ECMA-CLI and J2EE integration). OpenLink Virtuoso Universal Server’s broad protocol support enables it to offer Web, File, and SQL database server functionality alongside native XML storage, and Web services platform functionality as part of a cohesive single.
It also provides a cross-platform workbench for exploiting recent technology advances in areas such as Web Services, RDF Data Management, XML Data Management, Object-Relational Data Management, and Unified Storage.
Virtuoso is a “universal server”; it enables a single multithreaded server process that implements multiple protocols.
The software is designed to take advantage of operating system threading support and multiple CPUs. It consists of a single process with an adjustable pool of threads shared between clients.
Key Features
- SPARQL compliant RDF Triple Store.
- SQL-200n Object-Relational Database Engine (SQL, XML, and Free Text).
- BPEL Server and Enterprise Service Bus (integrated).
- WebDAV and Native File Server.
- Web Application Server (supporting PHP, Perl, Python, NET, JSP etc).
- Runtime Hosting for Microsoft .NET, Mono, and Java.
- Supports SQL, ODBC, JDBC, ADO.NET, OLEDB, SPARQL, XQuery, XPath, XSLT, WebDAV, HTTP, SOAP, BPEL, WS-*, UDDI, NNTP, and more.
- Implements a variety of industry standard data access APIs (client and server) that includes: ODBC, JDBC, OLE DB, ADO.NET, ADO.NET Entity Framework, XMLA.
- Database:
- Unicode.
- Backup – Online/Full/Incremental.
- XA/2PC Support.
- LDAP.
- Connections (Multiple/Concurrent).
- VLDB.
- Virtual/Federated (Heterogeneous).
- Full Text Search.
- Security:
- Grants & Roles.
- SSL & Certificates.
- Encryption.
- User Passwords.
- Row Level ACLS.
- Dynamic locking.
- Transactions:
- Dirty read.
- Read committed.
- Repeatable read.
- Serializable.
- Entity integrity.
- Referential integrity.
- Built-in WebDAV repository.
- Built-in web server.
- WebID Protocol based authentication for ODBC, JDBC, OLEDB, and ADO.NET client connections.
- Client- and server-side Semantic Pingback APIs.
- Initial support for OData’s Atom and JSON feed formats with regards to Linked Data Graph Serialization.
- Support for subproperties of Inverse Functional Properties.
Website: virtuoso.openlinksw.com
Support: Wiki, GitHub Code Repository
Developer: OpenLink Software
License: GNU General Public License v2.0
OpenLink Virtuoso is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Relational Databases | |
|---|---|
| MariaDB | Seeks high compatibility with MySQL, ensuring drop-in replacement capability |
| PostgreSQL | Award winning Object-relational database management system |
| MySQL | Multithreaded, multi-user SQL database management system |
| SQLite | Embeddable SQL Database Engine |
| rqlite | Distributed database built on SQLite |
| MonetDB | High performance relational database system for analytics |
| Firebird | Relational database offering many ANSI SQL features |
| H2 | Relational database management system written in Java |
| HSQLDB | JDBC interface, client-server version, query tool, grid and more |
| CUBRID | Database engine with built-in enterprise grade features |
| Virtuoso | Data Management with Web Application Server and Web Services Platform |
| Apache Derby | Full-featured relational database implemented entirely in Java |
Read our verdict in the software roundup.
| Graph Databases | |
|---|---|
| SurrealDB | Scalable, distributed, collaborative, document-graph database |
| EdgeDB | Graph-relational database with declarative schema |
| JanusGraph | Distributed graph database |
| ArangoDB | Scalable graph database system to drive value from connected data, faster |
| OrientDB | Document-graph database |
| TypeDB | Polymorphic database with a conceptual data model |
| Neo4j | Native graph database that is built to store and retrieve connected data |
| NebulaGraph | Graph database that can handle large volumes of data |
| TerminusDB | Document-oriented graph database for building collaborative applications |
| Ladybug | Embedded graph database |
| Virtuoso | Middleware and database engine hybrid |
| Bitsy | Small, fast, embeddable, durable in-memory graph database |
Read our verdict in the software roundup.
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