The goal of the Database Template Library is to make ODBC recordsets look just like an STL container. As a user, you can move through containers using standard STL iterators, and if you insert(), erase(), or replace() records in the containers, changes can be automatically committed to the database for you. The library's compliance with the STL iterator and container standards means you can plug the abstractions into a wide variety of STL algorithms for data storage, searching, and manipulation. In addition, the C++ reflection mechanism used by the library to bind to database tables allows generic indexing and lookup properties to be added to the containers with no special code required from the enduser. Because the code takes full advantage of the template mechanism, the library adds minimal overhead compared with using raw ODBC calls to access a database.
Neo4j is a graph database, a fully transactional database that stores data structured as graphs. A graph is a flexible data structure that allows for a more agile and rapid style of development. You can think of Neo4j as a high-performance graph engine with all the features of a mature and robust database. The programmer works with an object-oriented, flexible network structure rather than with strict and static tables, yet enjoys all the benefits of a fully transactional, enterprise-strength database. The community edition is GPLv3 licensed, while the advanced and enterprise editions are AGPLv3 licensed.
POPsearch is a desktop search engine that is designed to help you easily find information on your computer. With features that other search engines don't have,it lets you index your entire collection of email messages and files. As information is indexed, it is immediately available for analysis from any Web browser. When POPsearch is configured correctly, you can also access your data remotely with RSS feeds, email feeds, or from any computer that has a Web browser.
Easysoft JDBC-ODBC Bridge enables Java applications and applets on any JVM to access any remote ODBC data source, such as MS Access or SQL Server. It is a Type 3 driver certified by Sun Microsystems for use with J2EE™ branded products. The client driver is 100% Java, eliminating the hassle of client side ODBC drivers. It is compatible with any third party ODBC driver and gives multiple concurrent access to multiple data sources from multiple client devices. It is built for commercial use with high transaction rates and dependable performance. It is compatible with all leading Web application servers and Java™ IDEs.
Itzam is an embedded database engine that creates and manipulates files containing keyed-access records. Information is referenced by a user-defined key value, and one or more indexes (hash, B-tree, or matrix) may be combined with or separated from data. Itzam is deliberately portable and designed as a foundation for other languages (C++, Python, and Java).
The JGenerator is a Web server production application that can dynamically combine text, graphics, and sound to build rich Flash content. It is a free alternative to and analog of Macromedia Generator. It supports most of the Macromedia Generator features, uses the same data format and the same set of commands, and emulates its behavior.
Net::Z3950::SimpleServer is a Perl module which implements the server side of the Z39.50 (information retrieval) protocol. It hides the complexity of network exchanges, packet serialization, and session handling. You are required only to implement simple callbacks to support searching and record retrieval. It is the basis of the "Zoogle" project, which is a Z39.50 gateway to the Google web index.
The GNU Enterprise Application Server (GEAS), one of the foundations of the GNUe Project, provides a means for managing and deploying multi-tier business applications. Its architecture encourages reusability and easy maintenance by presenting data as objects and business logic as methods to clients written in several popular programming languages.