A Tcl extension which provides operators from Relational Algebra and works with Metakit data files:
http://www.vlerq.org/vlerq/ratcl
See also:
- Paper [L1 ], presented at the Thirteenth Annual Tcl/Tk Conference
- Pivot tables (also called "cross tabulation") [L2 ]
- Wrapping sqlite and oratcl query result sets [L3 ]
- Ratcl-like API with sqlite backend
RLH This is very cool stuff!
There is a starkit which runs on Windows, Linux, and Mac OS X at [L4 ]. The ChangeLog for this starkit is at [L5 ].
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):
[ Category Database (sort of) ]