
Relational databases have quickly come to be regarded as a natural and efficient way of organizing information. Duplicate data can be eliminated and powerful set-theoretic operations can be used to manipulate data. But finding the right relations for a database is not yet a trivial...

Relational databases have quickly come to be regarded as a natural and efficient way of organizing information. Duplicate data can be eliminated and powerful set-theoretic operations can be used to manipulate data. But finding the right relations for a database is not yet a trivial...