With the acquisition of Hyperion Systems in 2007, Oracle finds itself owning the two most capable OLAP products on the market - Essbase and the OLAP Option to t... » 

With the acquisition of Hyperion Systems in 2007, Oracle finds itself owning the two most capable OLAP products on the market - Essbase and the OLAP Option to the Oracle Database. Written by the most knowledgeable experts on both Essbase and Oracle OLAP, this Oracle Press guide explains how these products are similar and how they differ. Oracle Essbase & Oracle OLAP will help you architect the Oracle OLAP product that is most appropriate for your application, and build, tune, and maintain OLAP solutions. «