REALbasic is a cross-platform software development environment for developers who want to create and deliver native applications for Mac OS, Windows, and Linux. For example, you can create an application for Mac OS and Linux from a Windows machine. It is intended for people with all levels of programming experience. It is object-oriented, powerful, and supports advanced programming concepts like inheritance, polymorphism, interfaces, delegates, introspection, etc.
RazorSQL is a database query tool, SQL editor, database browser, and database administration tool with support for all major databases. Some of the main features included in RazorSQL are visual tools for creating, viewing, and altering database objects; tools for importing and exporting data; and tools for editing stored procedures, triggers, and functions.
odbcpp is an ODBC C++ library wrapper. The ODBC library itself is a low level C library that has many functions, all of which could return errors. This wrapper checks for errors on every single call to the ODBC interface, so if an SQL statement, a connection, or anything else fails, an exception is generated.
Green Dome GNUstepWeb for Mac OS X provides a WebObjects 4.5-like environment for Mac OS X (with some support for WO5 additions). It is composed of modified versions of the standard GNUstepBaseAdditions, GDL2, and GNUstepWeb frameworks, built to run on top of Apple's Cocoa frameworks. The GNUstep frameworks have been built with Xcode as true Mac OS X frameworks. Thus, they may be used as any other framework under Mac OS X. Note that this is a standalone package that does not require or interoperate with a separate GNUstep installation/environment. It is not intended to provide a complete GNUstep environment, such as would be expected of a full GNUstep installation.
OilCan is a native Universal Binary multithreaded query tool for PostgreSQL. It supports multiple query windows and multiple queries in one window, and includes a basic schema browser. Each query window gets its own connection. All queries run in their own thread, allowing other operations to continue while a long running query is running.
Cubulus is an analytic engine and a slice and dice Web interface on top of a relational database (MySQL, PostgreSQL, SQLite, and MonetDB at the moment). It caches calculated cells and is able to parse basic MDX queries, with a maximum of two dimensions cross-join on rows and/or on columns. It includes hierarchical charts: the vertical boxes represent hierarchy "on rows", and horizontal boxes represent data sets "on columns" scaled to the "on rows" measure.
Entrance is a program for browsing MySQL databases. It includes a "match box" search facility that is simlar to the Mac's Spotlight. Entrance can create charts based on query results, and these charts can be zoomed and panned. Entrance also supports an innovative feature called "data painting" that allows users to select and paint data points interactively.