Book Image

Oracle Business Intelligence 11g R1 Cookbook

By : Cuneyt Yilmaz
Book Image

Oracle Business Intelligence 11g R1 Cookbook

By: Cuneyt Yilmaz

Overview of this book

<p>Extracting meaningful and valuable business information from transactional databases is crucial for any organization. OBIEE 11g is a reporting tool that satisfies all the business requirements regarding complex reporting. It consists of a powerful back-end engine with a repository and a highly customizable graphical web interface.</p> <p>Oracle Business Intelligence 11g R1 Cookbook provides all the key concepts of the product including the architecture of the BI Server. This practical guide shows each and every step of creating analytical reports starting from building a well-designed repository. You will learn how to create analytical reports that will support different business perspectives. <br /><br />This practical guide covers how to implement OBIEE 11g suite in order to enable BI developers to create sophisticated web based reports. All of tasks will be covered step by step in detail. <br /><br />You will explore the architecture of the Oracle Business Intelligence Server and learn how to build the repository (RPD). We will also discuss how to implement the business rules in the repository with real-life scenarios.</p> <p>Best practices of a successful BI implementation are esssential for any BI developer so they are also covered in depth.If you are planning to implement OBIEE 11g suite, this step-by-step guide is a must have resource.All the key tasks are defined in detail and supported with diagrams and screenshots.</p>
Table of Contents (19 chapters)
Oracle Business Intelligence 11g R1 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating calculations by using the time series functions


It's very important to enable end users to compare the business performance with previous time periods. By achieving this, end users will understand the business better. Business users need to make these comparisons across multiple time periods.

For example, let's assume that business users are asking for the sales amount of this month and the sales amount for last month. Most probably, they're looking forward to comparing these two values and seeing the difference. Here is one method:

  • Calculate the sales amount of this month: This can be achieved by one query

  • Calculate the sales amount of last month: This is another query

  • Calculate the difference between these months: This will be the last query

As you see, we'll need at least three queries. There's another solution in Oracle Business Intelligence Enterprise Edition. It's time series functions. There are three types of time series functions:

  • AGO: Calculates aggregated value as of some...