DuroDBMS / News: Recent posts

DuroDBMS 1.7 has been released. This version supports using FoundationDB as a storage engine.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS from: http://sourceforge.net/projects/duro/files/duro/1.7/

DuroDBMS 1.4 has been released. This version offers the option of building DuroDBMS without Berkeley DB. It also contains a number of bug fixes.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS from: http://sourceforge.net/projects/duro/files/duro/1.4/

DuroDBMS 1.3 has been released. This version offers the option of using PostgreSQL instead of Berkeley DB as a storage backend.

The license has been changed to GNU LGPL. Currently this does not change much because Berkeley DB is required to build DuroDBMS, and Berkeley DB is published under the GNU Affero GPL. With the next version it will probably be possible to build DuroDBMS without Berkeley DB.... read more

DuroDBMS 1.2 has been released. This version is the first to provide subtyping, although limited insofar as only dummy types can be supertypes.
Also, this version provides more built-in operators, among other improvements.

DuroDBMS 1.2 is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS from: http://sourceforge.net/projects/duro/files/duro/1.2/

DuroDBMS 1.1 has been released. This version, among other enhancements,
supports accessing properties using the dot (.) operator in addition to
the THE_ operators.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS from: http://sourceforge.net/projects/duro/files/duro/1.1/

DuroDBMS 1.0 has been released, with a number of improvements over the previous version.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS from: http://sourceforge.net/projects/duro/files/duro/1.0/

DuroDBMS 0.26 has been released. In addition to a number of minor fixes and improvements, this release provides more string operators, D_INSERT, I_DELETE, and a datetime type.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS from: http://sourceforge.net/projects/duro/files/duro/0.26/

DuroDBMS 0.25 has been released. In addition to some minor fixes and improvements, this release provides modules.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS 0.25 from: http://sourceforge.net/projects/duro/files/duro/0.25/

DuroDBMS 0.23 has been released. This is for the most part a bugfix release. There is one minor API change: Database environments have to be created using RDB_create_env() instead of RDB_open_env(RDB_CREATE). An option for recovery is available with RDB_open_env().

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS 0.23 from: http://sourceforge.net/projects/duro/files/duro/0.23/

DuroDBMS 0.21 has been released, with several fixes and enhancements, including a JNI-based Java interface.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS 0.21 from: http://sourceforge.net/projects/duro/files/duro/0.21/

DuroDBMS 0.20 (beta) has been released, with several fixes and enhancements, including support for system keys and transition constraints.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen.
Download DuroDBMS 0.20 from: http://sourceforge.net/projects/duro/files/duro/0.20/

DuroDBMS 0.19 (beta) has been released, with several fixes and enhancements, including support for public tables.

DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen.
Download DuroDBMS 0.19 from: http://sourceforge.net/projects/duro/files/duro/0.19/

DuroDBMS 0.18 (beta) has been released, with several fixes and enhancements, including implicit transaction support.

Download DuroDBMS 0.18 from: http://sourceforge.net/projects/duro/files/duro/0.18/

DuroDBMS (formerly Duro) 0.17 has been released, with several fixes and enhancements, including improved query optimization, improved support for user-defined types, Web/FCGI support, and more.

DuroDBMS (formerly Duro) 0.16 has been released, with several fixes and enhancements, including command line editing, DEFAULT, FOREACH, TCLOSE, EXPLAIN, and more.

Duro (http://duro.sourceforge.net) is a relational open-source database management system based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen.

Duro 0.14 features several improvements. The Tutorial D interpreter now supports exception handling, constraints, and implementing user-defined types.

Duro (http://duro.sourceforge.net) is a relational open-source database management system based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen.

Duro 0.13 features several improvements, including an interpreter for a variant of the Tutorial D language.

Duro (http://duro.sourceforge.net) is a relational open-source database library based on the principles laid down in the book Foundation for Future Database Systems: The Third Manifesto by C. J. Date and Hugh Darwen. It is supposed to serve as a basis for a truly relational database management system (TRDBMS).

Duro 0.12 version includes several changes to the API. Great parts of the handling of virtual tables have been rewritten, in order to simplify both the interface and the implementation.... read more

Duro 0.11 has been released. This release is also available as a binary version for Windows.

Duro 0.10 has been released. Most important new features:

• SEMIJOIN and SEMINUS
• Declarative integrity
• Multiple assignment
• Completely redesigned error handling

Duro 0.8 has been released, featuring relation-valued table attributes, GROUP, UNGROUP, user-defined indexes, a simple GUI admin tool, and more.

Duro 0.7 has been released. Most important new features are tuple-valued table attributes, WRAP, UNWRAP, DIVIDEBY PER, and a Tcl interface including support for relational expressions in Tutorial D syntax.

Duro 0.6. has been released.
New features are sorting, user-defined types and operators, and default values for table attributes.
A draft API specification is available.

Duro 0.5. has been released. This release features, among other things, support for SUMMARIZE PER and RENAME and regular expression matching.