Book Image

Learning Informatica PowerCenter 10.x - Second Edition

By : Rahul Malewar
Book Image

Learning Informatica PowerCenter 10.x - Second Edition

By: Rahul Malewar

Overview of this book

Informatica PowerCenter is an industry-leading ETL tool, known for its accelerated data extraction, transformation, and data management strategies. This book will be your quick guide to exploring Informatica PowerCenter’s powerful features such as working on sources, targets, transformations, performance optimization, scheduling, deploying for processing, and managing your data at speed. First, you’ll learn how to install and configure tools. You will learn to implement various data warehouse and ETL concepts, and use PowerCenter 10.x components to build mappings, tasks, workflows, and so on. You will come across features such as transformations, SCD, XML processing, partitioning, constraint-based loading, Incremental aggregation, and many more. Moreover, you’ll also learn to deliver powerful visualizations for data profiling using the advanced monitoring dashboard functionality offered by the new version. Using data transformation technique, performance tuning, and the many new advanced features, this book will help you understand and process data for training or production purposes. The step-by-step approach and adoption of real-time scenarios will guide you through effectively accessing all core functionalities offered by Informatica PowerCenter version 10.x.
Table of Contents (20 chapters)
Title Page
Credits
About the Author
Acknowledgement
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Classification of transformations


At this point, we have seen quite a few transformations and their functionality. Before we take the next transformations, let's talk about classification of transformations. The transformations based on their connectivity with other components are divided as Connected or Unconnected. The transformation based on the number of records at the input and output ports are divided as Active or Passive.

Let's first discuss Active and Passive Classification.

Active and Passive

This classification of transformations is based on the number of records at the input and output ports of the transformation. This classification is not based on the number of ports or the number of groups.

If the transformation does not change the number of records at its input and output ports, it is said to be a Passive transformation. If the transformation changes the number of records at the input and output ports of the transformation, it is said to be an Active transformation. Also, if the...