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This is an old version, new development is on github.
https://github.com/ltworf/relational/

Relational

A relational algebra to python compiler.
Relational is primarily an educational tool to provide a workspace for experimenting with relational algebra, an offshoot of first-order logic.

It provides GUI that can be used for executing relational queries, and also provides a command line interface.

Provides a standalone Python module that can be used for executing relational queries, parsing relational expressions and optimizing them.

For users

For developers

News

Forum was deleted

Since the forum was completely abandoned but was generating a big amount of traffic anyway I've decided to take it down.

· 2012/11/06 15:11 · LtWorf

Don't expect releases for OsX

Since i got rid of my MacBook, I don't have any means to test Relational on it.

· 2012/04/11 14:21 · LtWorf

Released 1.1 for windows

Version 1.1 was released for windows too today.
It is reachable from the download page.

· 2011/10/27 21:42 · LtWorf

Released 1.1

Version 1.1 was just released.

It includes an editor for relations, removing the need to edit them externally.
Also now uses regular expressions to forbid invalid attribute names and gives to the user more feedback on incorrect relations.

For now windows and mac versions are not available, but the introduced support to PySide should make it easier on Mac to install the dependencies.

For the developers, the API has been changed and now accepts unicode objects instead of utf-8 encoded strings.

Full changelog

· 2011/10/22 16:46 · LtWorf

Links

start.txt · Last modified: 2014/01/01 10:59 by LtWorf
 
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