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

Avoid hardcoding - parameters and variables


When you work on any technology, it is always advisable that your code is dynamic. This means you should use hardcoded values as little as possible in your code. It is always recommended that you use parameters or variables in your code so that you can easily pass these values and need not frequently change the code.

We will discuss this concept in more detail in the Parameter file - parameters and variables section in Chapter 9, Advanced Features of Workflow Manager Screen.

In this section, we will discuss how to use parameters and variables in the PowerCenter Designer screen.

The value of a variable can change between session runs. The value of a parameter will remain constant across session runs. The difference is very minute, so you should define the parameter or variable properly, as per your requirements.

Consider a Filter Transformation where you have defined the filter condition as LOCATION='USA'. Since you have used a hardcoded value in the...