Book Image

Business Intelligence Cookbook: A Project Lifecycle Approach Using Oracle Technology

By : John Heaton
Book Image

Business Intelligence Cookbook: A Project Lifecycle Approach Using Oracle Technology

By: John Heaton

Overview of this book

Oracle Database 11g is a comprehensive database platform for data warehousing and business intelligence that combines industry-leading scalability and performance, deeply-integrated analytics, and embedded integration and data-quality all in a single platform running on a reliable, low-cost grid infrastructure. This book steps through the lifecycle of building a data warehouse with key tips and techniques along the way. Business Intelligence Cookbook: A Project Lifecycle Approach Using Oracle Technology outlines the key ways to effectively use Oracle technology to deliver your business intelligence solution. This is a practical guide starting with key recipes for project management then moving onto project delivery. Business Intelligence Cookbook: A Project Lifecycle Approach Using Oracle Technology is a practical guide for performing key steps and functions on your project. This book starts with setting the foundation for a highly repeatable efficient project management approach by assessing your current methodology to see how suitable it is for a business intelligence program. We also learn to set up the project delivery phases to consistently estimate the effort for a project. Along the way we learn to create blueprints for the business intelligence solution that help to connect and map out the destination of the solution. We then move on to analyze requirements, sources, and data. Finally we learn to secure the data as it is an important asset within the organization and needs to be secured efficiently and effectively.
Table of Contents (21 chapters)
Business Intelligence Cookbook: A Project Lifecycle Approach Using Oracle Technology
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface

Designing ETL error trapping and detection routines


There are many ways in which you can detect and trap errors. Tools such as Oracle Warehouse Builder and Oracle Data Integrator provide some capabilities to detect data quality errors and provide mechanisms to correct the issues. The Oracle database allows you to add constraints to your data model (primary, foreign, unique, and check constraints) to enforce data integrity. They are useful and help to trap some errors; the problem with them is in detecting an error. For example, if you get a duplicate key error and are using a primary key constraint with bulk transformation within Oracle, a few things will happen. The first is the bulk transformation will encounter an error and potentially stop. If you have a failover to row processing, the process will start again, processing a single row at a time. The first duplicate record will be inserted into the target table, and the rest will return an error and can be configured to be placed into...