Daffodil DB is a SQL-99 specification compliant, lightweight, Java-based relational database engine (RDBMS). It supports almost all constructs of SQL 99 (including triggers, views, constraints, UDT, stored procedures, etc.), supports distributed transactions (XA), provides a complete JDBC 3.0 driver (including support for optional features like save points, rowsets, UDT, XA, connection pooling, etc.), and can run in embedded or server mode. It can be included as a jar file in any Java application. Daffodil DB includes Daffodil DB Browser, a GUI-based database management tool that can be used to carry out all database operations such as creating a database, creating database objects, executing SQL statements, and manipulating data, browser database objects, etc.
HotCache is a transactional distributed caching system that runs on top of most RDBMSes. It provides an object-relational mapping tool that makes the use of embedded SQL unnecessary and saves tedious mapping programming. It enhances RDBMS commit functionality by adding commit-broadcast transactions where data is committed to the database and at the same time pushed to all other client caches, in essence keeping the data at remote clients hot. This improves performance by orders of magnitude (as most data access can be done locally) and reduces the load on the database server. The commit-broadcast transactions are implemented using UDP multicast for maximum network utilization. HotCache provides a sophisticated event framework that allows the client to register interest in business objects and be notified when changes are committed. The event framework is built so that it can be easily integrated with other systems' event-loops, eliminating multi-threading problems, etc. Notification can also be configured to take place in an asynchronous/multi-threaded method.
Itzam/C++ wraps the Itzam database engine with C++ templates for both simple and complex database classes. It supports B-tree, hash table, and sparse matrix indexes with unique or duplicate keys, and includes multithreaded resource locking and atomic file transactions. Complete class documentation is embedded in the source code, and available online and in the distribution archive.
The OpenLink Universal Data Access Driver Suite is a suite of high-performance drivers for ODBC, JDBC, OLE DB, and ADO.NET that enable development of database-independent applications. It supports OpenLink Virtuoso, Oracle, Microsoft SQL Server, Microsoft ACCESS, IBM DB2, Informix, Sybase, Ingres II, Progress, PostgreSQL, DBASE, Paradox, and other ODBC-compliant databases. It runs on x86, Itanium, Opteron, PPC, and Sparc, etc. platforms.
StelsMDB is a MDB JDBC type 4 driver that allows you to perform SQL queries and other JDBC operations on Microsoft Access database (versions 2000-2010) files. The driver is completely platform-independent and does not require installing additional client or server software to provide access to MDB files. It can be effectively used to create, process, and export Microsoft Access databases in your Java applications. It supports most keywords of ANSI SQL'92, supports inner and outer table joins, supports CREATE, INSERT, UPDATE, and DELETE statements, supports transactions, and supports aggregate, numeric, string, conversion, and user-defined SQL functions.
TM++ is an embedded, portable, persistent Topic Maps engine. It is designed to work according to the ISO standards for TMDM 1.0 and XTM 1.0/2.0 on Windows and most POSIX-compliant operating systems like Unix and Linux. It has interfaces for C++, ALLEGROCL, CHICKEN, CLISP, CFFI, C#, Guile, Java, Lua, Modula 3, Mzscheme, Ocaml, Octave, Perl, PHP4, PHP5, Pike, Python, R (aka GNU S), Ruby, Lisp S-Expressions, Tcl, Common Lisp/UFFI, and XML.
The c-tree Plus embedded database engine offers developers several APIs that provide low-level routines, ISAM-level control, and higher-level interfaces. c-tree Plus is distributed in complete C source, has been ported to 100+ environments and includes a robust database Server SDK. It can be used to develop single user and peer-to-peer applications, or the client-side for applications using FairCom's database server, the c-tree Server.