KInterbasDB is a Python extension package that implements Python Database API 2.0-compliant support for the open source relational database Firebird and some versions of its proprietary cousin Borland Interbase. In addition to the minimal feature set of the standard Python DB API, KInterbasDB also exposes nearly the entire native client API of the database engine.
libsqljdbc_auth provides support for using Windows integrated authentication with the Microsoft SQL Server 2005 JDBC Driver under Unix operating systems. SQL Server Authentication is not secure and is difficult to manage in an environment with large numbers of database servers, but it is often the only option when connecting to an SQL Server Database from non-Windows operating systems. This library allows users of other operating systems to use the more secure Integrated Authentication method with Microsoft's SQL Server 2005 JDBC driver using native Kerberos authentication libraries.
MUSCLE (Multi User Server Client Linking Environment) is an N-way messaging server and networking API. It includes client-side networking APIs for various languages, including C, C++, C#, Delphi, Java, and Python. MUSCLE lets programs communicate over a network via streams of serialized Message objects. The included server program ("muscled") lets its clients message each other and store information in its server-side hierarchical database. The database supports flexible queries via hierarchical wildcarding, and "live" updates via a subscription mechanism.
PostgreSQL-relay can be used to as a single point of origin for a number of databases. Instead of having to remember (or modify in case of changes) all the names of databases, on which machines and on which ports they are running, you only need to remember one machine and the name of the database. It will then forward the connection to the proper database on the proper port of the proper server.
SQLite/Ruby is a set of bindings to allow the SQLite (v 2.x) database to be used from Ruby scripts. It provides an object-oriented interface to all major functions of the SQLite API, including the create_function and create_aggregate functions. It also supports bind parameters, transactions, internal and external iterators, type translation in queries, and easy access to various pragmas.