04/07/2008 Sedna 3.0 released

April 7, 2008 | Comments Off

We are pleased to announce a version 3.0 of the Sedna XML database system.


  • Improved transaction management
  • Support for Mac OS X 10.4 and higher (PPC/Intel)
  • Query execution timeout
  • Database security feature is divided into two parts: support for client authentication and support for database users and privileges.
  • Many bug fixes

New third-party contributions:

Sedna 2.2 released

October 31, 2007 | Comments Off


  • XQuery triggers
  • Improved diagnostic of dynamic errors in XQuery/update statements
  • Root privileges are no longer necessary to run Sedna on Linux
  • Bug fixes:
    • correct Sedna shut down on Windows restart
    • every session process now needs significantly less memory when running
  • Comprehensive testing now covers Red Hat Enterprise Linux 5

Sedna 2.1 released

July 10, 2007 | Comments Off


  • Further indexes optimization;
  • Further bulk load optimization;
  • A lot of bug fixes and small improvments.


June 1, 2007 | Comments Off

MODIS team members took part in SYRCoDIS 2007 in Moscow, Russia. Denis Turdakov gave a talk on recommender system based on user-generated content. Roman Pastukhov gave a talk on full-text search queries support in native XML databases.

Sedna 2.0 released

April 16, 2007 | Comments Off

We are pleased to announce a version 2.0 of the Sedna XML database system.


  • XQuery support now conforms to the XQuery specification. Sedna passes “XML Query Test Suite (XQTS)” by W3C and has official “almost passed” status. The detailed report can be found here.
  • Optional XQuery features:
    • Support for user-defined XQuery modules. Modules are stored at server side as precompiled functions
    • Full Axis (i.e. support for all XPath axes)
  • XQuery debug facilities:
    • support for standard fn:trace function
    • facility to obtain stack trace in case of dynamic error
  • Server configuration options are extended (e.g. you can configure several instances of Sedna server to be running on a computer)

New third-party contributions:

GRE publishing company uses Sedna as the core component in its content management solution which is used to develop advanced information products based on encyclopedias and references. In this solution Sedna provides single-source publishing, powerful content reuse, superior search and navigation, and great flexibility in information products customization.

Sedna XML database system 1.0 released!

June 28, 2006 | Comments Off

We are pleased to announce a version 1.0 of the Sedna XML database system.

Sedna is being developed since early 2003. It is our sixth release (previous releases were 0.1-0.5). Now Sedna has a quite complete set of features required for a database system.


  • Recovery
  • XQuery extended with support for: date, time, duration functions; all XPath axes; expressions on SequenceTypes (Instance Of, Typeswitch, Castable, Treat), Order By
  • The XQuery functions position(), last() are optimized
  • Event Log
  • Backup and Restore Utilities
  • Integration with dtSearch (http://www.dtsearch.com), a commercial text retrieval engine (not included in the distributive, please contact us to get information on this feature)
  • Bug fixes

University of Alberta runs Sedna

April 10, 2006 | Comments Off

University of Alberta’s Office of the Provost has developed and deployed a database application for searching academic awards and the University’s recipients of these awards, using the Sedna XML database. The information in the awards database is stored and indexed in Sedna XML database to provide powerful search capabilities available at https://gandalf.registrar.ualberta.ca/Awards/html/teachingawards.html. The content of the awards database can be edited via internal administrative interface powered by Sedna update facilities.

OmniMark includes support for Sedna

January 12, 2006 | Comments Off

OmniMark version 8, the world’s leading Content Processing platform, includes support for Sedna via the OmniMark database interface library (OMDB). Integrating Sedna support into OmniMark allows OmniMark developers to leverage the full power of XQuery and XML databases in content engineering applications. More information on Sedna and OmniMark integration can be found in OmniMark 8 release notes.

Peter Pleshachkov gave a talk at ADBIS 2005

September 27, 2005 | Comments Off

Peter Pleshachkov gave a talk on Fine-grained Concurrency Control in XML databases, ADBIS 2005 , Estonia, Tallinn