History
- 1992 Company founded (as PAL Consulting) by Kingsley Uyi Idehen
- 1993 Shipped first ODBC functionality on non-Windows platforms, Universal DataBase Connectivity (UDBC); name changed to OpenLink Software
- 1995 Shipped iODBC, the first ODBC Driver Manager for non-Windows platforms
- 1998 Acquired full rights to Kubl, which evolved into the Virtuoso Universal Server; Orri Erling joined staff
- 1998 Shipped Virtuoso 1.0, including Virtual Database / Federated Database / Hybrid Data Sever Functionality
- 2000 Shipped Virtuoso 1.5, adding a Validating XML Parser (supporting XML Schema), XSLT processor, SQL-to-XML transformation, XQuery, XPath, WebDAV support, and a native XML datatype
- 2001 Shipped Virtuoso 2.0, adding
- Execution of native or third party SQL Stored Procedures over HTTP
- Execution of native or third party SQL Stored Procedures via SOAP (by publishing SQL Stored Procedures as WSDL and SOAP compliant Web Services)
- Proxy Generation for third party Web Services
- Exposure of saved SQL, SQL-to-XML, XQuery, and XPath queries as Web Services
- 2001 Shipped Virtuoso 3.0, adding
- DBMS hosting of the Java, Microsoft .NET CLR, and Mono runtime environments
- User Defined Types (UDT) support with implementation in SQL, Java or .NET
- Use of UDTs for abstracting web services, generating a UDT from a WSDL.
- SQL Stored Procedures extensibility via code associated with hosted runtimes
- Dynamic Language & Web page hosting for PHP, ASP.NET, JSP, Python, Perl, and Ruby (a recent addition)
- Procedure Views (Table Valued Functions in SQL Server and Table Functions in Oracle)
- Improved Cost based Distributed Query Optimizer for handling heterogeneous SQL joins
- Bi-Directional Transaction Replication
- XA-based 2-Phase Commit for Distributed Transactions
- 2006 Shipped OpenLink Data Spaces 1.0, incorporating
- Web Application Framework
- Weblog Publishing Platform
- RSS/Atom/RDF Feed Aggregator
- Photo Sharing system
- Discussion Server
- Wiki Engine
- BPEL Process Manager (application layer above the in-built BPEL core)
- Unified Storage (that includes automatic metadata extraction and resource classification using RDFS and OWL)
- Social Networking Framework
- 2006 Shipped Virtuoso 4.0, forking Open Source (no Virtual DBMS features) and Closed Source (including VDBMS features) editions
- 2006 Shipped OpenLink ODBC Adapter for Ruby on Rails / Active Record
- 2006 Shipped OpenLink AJAX Toolkit 1.0
- 2007 Shipped Virtuoso 4.5, adding --
- RDF Mapping of relational data.
- Bitmap index support
- Engine enhancements including automatic background compaction, better SMP behavior with shorter critical sections, fixes in transaction logic and more.
- 2007 Shipped Virtuoso 5.0, adding --
- Full Text Indexing of Literal Objects in SPARQL Queries (this includes the magic predicate "bif:contains")
- Subclass and Subproperty Support (Inferencing)
- SPARQL Aggregate Functions
- SPARUL support (SPARQL Inserts, Updates, and Deletions)
- SPARQL Endpoint ("/sparql") is equipped with in-built RDF Middleware that enables non-RDF Data Sources (e.g., (X)HTML Pages, Microformats embedded in (X)HTML, and Web Services ) to be treated as bona fide SPARQL Graph URIs
- Improved Support of XML Schema Type System
- Enhanced SPARQL to Relational Mapping (RDF VIEWs of SQL Data)
- 2012 Purchase of software vendor Solar
Read more about this topic: Open Link Software
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