Book Image

Pentaho Data Integration Beginner's Guide - Second Edition - Second Edition

By : María Carina Roldán
Book Image

Pentaho Data Integration Beginner's Guide - Second Edition - Second Edition

By: María Carina Roldán

Overview of this book

Capturing, manipulating, cleansing, transferring, and loading data effectively are the prime requirements in every IT organization. Achieving these tasks require people devoted to developing extensive software programs, or investing in ETL or data integration tools that can simplify this work. Pentaho Data Integration is a full-featured open source ETL solution that allows you to meet these requirements. Pentaho Data Integration has an intuitive, graphical, drag-and-drop design environment and its ETL capabilities are powerful. However, getting started with Pentaho Data Integration can be difficult or confusing. "Pentaho Data Integration Beginner's Guide - Second Edition" provides the guidance needed to overcome that difficulty, covering all the possible key features of Pentaho Data Integration. "Pentaho Data Integration Beginner's Guide - Second Edition" starts with the installation of Pentaho Data Integration software and then moves on to cover all the key Pentaho Data Integration concepts. Each chapter introduces new features, allowing you to gradually get involved with the tool. First, you will learn to do all kinds of data manipulation and work with plain files. Then, the book gives you a primer on databases and teaches you how to work with databases inside Pentaho Data Integration. Moreover, you will be introduced to data warehouse concepts and you will learn how to load data in a data warehouse. After that, you will learn to implement simple and complex processes. Finally, you will have the opportunity of applying and reinforcing all the learned concepts through the implementation of a simple datamart. With "Pentaho Data Integration Beginner's Guide - Second Edition", you will learn everything you need to know in order to meet your data manipulation requirements.
Table of Contents (26 chapters)
Pentaho Data Integration Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Best Practices
Index

Time for action – assigning tasks by filtering priorities with the Switch/Case step


Let's use a Switch/Case step to replace the nested Filter rows steps shown in the previous image.

  1. Create a transformation like the following:

  2. You will find the Switch/Case step in the Flow category of steps.

    Tip

    To save time, you can take as starting point the last transformation you created. Configure the new Microsoft Excel Output steps just as you configured the others but changing the names of the output files.

  3. Create a hop, leaving the Switch/Case step towards the first of the Microsoft Excel Output steps. When prompted for the kind of hop to create, select Create a new target case for this step as shown in the following image:

  4. Create a new hop from the Switch/Case step to the second Microsoft Excel Output step, also selecting Create a new target case for this step.

  5. Do the same again, this time linking the Switch/Case to the third Microsoft Excel Output step.

  6. Finally, create a hop from the Switch/Case step to...