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Rel is a database management system (DBMS) that implements Tutorial D.
Rel is a DBMS primarily intended for educational purposes, but also suitable as a desktop DBMS or lightweight server, that implements Date and Darwen's "Tutorial D" true relational database language.
Source code is available at https://github.com/DaveVoorhis/Rel
Avicenna is an application for visualizing location data stored in excel or .csv table files on a map or in a table view. It provides several export functions (such as single pictures, database dumps and even a HTML-export that enables you to use Avicenna on your website).
It was developed as part of the course "Techniken der Projektentwicklung" in summer semester 2012 at the University of Bielefeld by Team 2 and is licensed under the GNU Affero General Public License version 3.
This...
MighTyD is a prototype for demo puposes & the first implementation of the temporal database model devised by Nikos Lorentzos, Hugh Darwen & CJ Date. It uses Tutorial D as its language & PostgreSQL for storage & is compliant with the The Third Manifesto.