Here is a series of videos by CJ Date on Relational Theory.
Introduction video
An Introduction to set theory (videos on O’Reilly website)
Nullology (Videos on O’Reilly website)
...
En Oracle Application Express 5.1, los asistentes se han simplificado con valores predeterminados más inteligentes y con menos pasos, lo que permite a los desarrolladores crear componentes más rápidam...
On Friday, I gave a presentation about Apache Cassandra at Big Talk event organized by Komtaş Information Management company. Cassandra is a top level Apache project which is born at Facebook. It is a...