Ratcl

Ratcl , part of the Vlerq project, is a Tcl extension which provides operators from Relational Algebra and works with Metakit data files.

Attributes

website
http://equi4.com/pub/ra/

Download

ratcl.kit (alternate )

See Also

pivot tables in ratcl , JCW ,2006-08
Wrapping sqlite and oratcl query result sets
Ratcl-like API with sqlite backend

Documentation

Introduction to Ratcl
official reference
Relational algebra for Tcl: introducing Ratcl and Rasql ,Jean-Claude Wippler
Ratcl and Rasql , by Jean-Claude Wippler
a presentation
Ratcl example (sort of) ,JCW ,comp.lang.tcl ,2008-05-08
[1 ] (Vlerq + Ratcl = Easy Data Management ) ,JCW , alternate , presented at the Thirteenth Annual Tcl/Tk Conference

Misc

RLH: This is very cool stuff!

2007-02-16: There is a starkit which runs on Windows, Linux, and Mac OS X at [3 ]. The ChangeLog for this starkit is at [2 ].

This starkit includes the "Ratk" graphical view browser by Brian Theado. Here is an example with a pivot table (also called a crosstab, see also crosstab a la Relations):

http://www.equi4.com/pub/etc/ratk2.png