ChessDB is a free open-source chess database for Windows, Linux, Mac OSX and most UNIX and UNIX-like operating systems. ChessDB is based on code from Scid http://scid.sourceforge.net/ - a project for which there have been no updates for several years. In
-- PEM - A tool like a visual debugger with a rich user interface(but there is much more to this than a debugger), it is better described using the example of Eclipse debugger. This tool inverts the debugger to develop code.
Mysql and sqlite interface , sqlite is the embedded most used SQL method , the APIs are as simple as 1 2 3 , just two functions will give access and control over the database
Basic PostgreSQL client applications for Windows. It includes native win32 SQL terminal and backup tools, psql and pg_dump with gzip, for execution of SQL scripts and access to PostgreSQL servers remotely by administrators and end users.