(require 'relational-database)
This package implements a database system inspired by the Relational
Model (E. F. Codd, A Relational Model of Data for Large Shared
Data Banks). An SLIB relational database implementation can be created
from any Base Table implementation.
Why relational database? For motivations and design issues see
http://people.csail.mit.edu/jaffer/DBManifesto.html.