Book Image

Oracle Essbase 9 Implementation Guide

Book Image

Oracle Essbase 9 Implementation Guide

Overview of this book

The hot new data analysis trends involve business intelligence and analytics. The technology that supports business intelligence and analytics better than anything else is today's multidimensional OLAP technology ñ and there is none better than Oracle Essbase! Although storing data in a cube and developing analytical applications leaves many people grasping for understanding, especially if their experience is with relational databases, embracing OLAP technology will pay big dividends in the long run. It's easy to develop multidimensional analytic OLAP solutions when you have got this Oracle Essbase book to hand. It is a step-by-step guide to timeless Essbase fundamentals, which takes you from a basic software installation through to launching a fully functioning Essbase database cube. This book will guide you through every stage of installing Oracle's Essbase software on your analytic server, the Essbase Administration Services client, and the client software itself. You will learn, in easy-to-understand language, the concepts of multidimensional database technology as you are taken step by step through building an actual Essbase application complete with database, database calculation scripts, and database report scripts. Once you have your system built and functional, the next course of instruction covers the available automation features included in your Essbase software package and how to use them. These chapters alone are worth the price of admission! As an IT professional you quite rightly have a desire to understand multidimensional OLAP ñ this book gives you that understanding. Should you wish to embark on an exciting career as an Essbase developer/administrator, this book provides a fantastic foundation from which to grow. Best of all, this book is filled with the tips and tricks that you can only get from many years and countless hours spent playing with Essbase. You get them all in just the time it takes you to complete this book.
Table of Contents (18 chapters)
Oracle Essbase 9 Implementation Guide
Credits
About the Authors
About the Reviewer
Acknowledgements
Preface

Using Substitution Variables


One of the coolest things in Essbase is the substitution variable. Substitution variables are like global variables that can be defined once and then used anywhere in Essbase you want to. The main use for substitution variables is to create a dynamic, easy to use variable which will change with time. Each variable name will have a value associated with it which can be changed (recreated), displayed or deleted.

For example, let's say you have a batch job that runs every day. In this daily job you are loading data, calculating it, and creating a unit report for the current month. Now, can you guess what should be the value of the substitution variable? You got it, it is the Month value from the database time dimension. You set the value of the time variable once and you can use it in the SQL statement in your data load rule file. You can also use its value in the FIX statement in a calc script, and in an Essbase database report script. When you code any one of...