OpenDataBag is object database with web interface. Full text search over whole database, live reports, secure and stable. Platforms: Windows, Mac, Linux

Omseek has been renamed to Xapian. Xapian is a Search Engine Library, written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C# and Ruby. It allows you to easily add advanced indexing and search facilities to your applications. See xapian.org Platforms: Windows, BSD, Mac, Solaris, Linux

olap4j is an open Java API for connecting to OLAP servers and writing analytic applications. Platforms: Windows, Mac, Linux

Google Web Toolkit-based tool for publishing user-friendly OLAP views, reports and dashboards. Uses Mondrian OLAP and a relational database as the back-end. Platforms: Windows, Mac, Linux

A database to handle voucher specimens of DNA sequences used for molecular phylogenetics. Platforms: Windows, Mac, Linux

This project tries to define a new grammar to be used for database access. It should be easier to learn, understand and use than SQL, be more consistent, and contain significantly less rules. It does not try to be an extension or subset of SQL. Platforms: Windows, Mac, Linux

This was a terrible idea and is equally terribly implemented. Platforms: Windows, BSD, Mac, Solaris, Linux

MySQL Embedded Library for Javalets you integrate MySQL into Java applications and provides a standard JDBC interface Platforms: Windows, BSD, Mac, Linux

PAiN Mud codebase is a new MUD codebase written in Java. It provides general purpose persistence engine (PAiN DB) and ability of dynamic code reloading. Platforms: Windows, Mac, Linux

A set of software components used to investigate and implement searching of music and audio. This covers content-based retrieval and meta-data based solutions, segmentation and content selection (summarisation) of audio and music (MIDI, MP3 and WAV). Platforms: Windows, Mac, Linux

Implementation of ANSI Standard MUMPS 1995 for FreeBSD, OSX(intel) and linux. The post-relational database. Platforms: BSD, Mac, Linux

Model driven code generation can improve coding standards, speed, quality of development and reduce your costs. From my experience generating code from XML using XSLT is one of the best and fastest solutions. This is just the base of the framework presenting the idea, any code template can be... Platforms: Windows, Mac, Linux

MXQuery is a low-footprint implementation of XQuery 1.0, XQuery Update 1.0, XQuery Fulltext 1.0 and XQuery Scripting 1.0 as well as a subset of XQuery 1.1 (windowing, try/catch). It provides extensions to do data stream processing/CEP and SOAP/REST Platforms: Windows, Mac, Linux

MCDb is a database record manager written in Java with indexing, locking, etc. MCDb is a library built to be used by other programs to manage small data sets of program settings, etc. Platforms: Windows, Mac, Linux

MAMP is a very easy to install compilation of Apache, PHP and MySQL for Mac OS X. Everything will be installed in one folder. If you want to get rid of it, just move the folder into trash. An easy to use cocoa program to start and stop the servers. Platforms: Mac

In the Oracle database there are two PL/SQL APIs to send mails: UTL_SMTP and UTL_MAIL. But there is no package which is able to retrieve messages from a mailbox on a server. The here provided package MAIL_CLIENT closes this gap. Platforms: Windows, Mac, Linux

LifeLines is a genealogy program to help with your family history research.Its primarily strengths are its powerful scripting language and the abilityeasily import and export information in the GEDCOM format. Platforms: Windows, BSD, Mac, Linux

A collection of implementations of the Paxos and FastPaxos algorithms for solving consensus in a network of unreliable processors. Visit http://libpaxos.sourceforge.net/ for more informations Platforms: Mac, Linux

LeverPack is a small, transaction based, secure, concurrent, and efficient record repository management engine written in Java. It provides READ_COMMITTED transaction isolation level supported read/write access to user data records. Platforms: Windows, Mac, Linux

LEAP is an RDBMS (Relational Database Management System) implementing the relational Algebra - a core part of relational database theory. It is primarily used as an educational tool, but has found some novel uses and applications. Platforms: Windows, Mac, Linux