Book Image

Pentaho 3.2 Data Integration: Beginner's Guide

Book Image

Pentaho 3.2 Data Integration: Beginner's Guide

Overview of this book

Pentaho Data Integration (a.k.a. Kettle) is a full-featured open source ETL (Extract, Transform, and Load) solution. Although PDI is a feature-rich tool, effectively capturing, manipulating, cleansing, transferring, and loading data can get complicated.This book is full of practical examples that will help you to take advantage of Pentaho Data Integration's graphical, drag-and-drop design environment. You will quickly get started with Pentaho Data Integration by following the step-by-step guidance in this book. The useful tips in this book will encourage you to exploit powerful features of Pentaho Data Integration and perform ETL operations with ease.Starting with the installation of the PDI software, this book will teach you all the key PDI concepts. Each chapter introduces new features, allowing you to gradually get involved with the tool. First, you will learn to work with plain files, and to do all kinds of data manipulation. Then, the book gives you a primer on databases and teaches you how to work with databases inside PDI. Not only that, you'll be given an introduction to data warehouse concepts and you will learn to load data in a data warehouse. After that, you will learn to implement simple and complex processes.Once you've learned all the basics, you will build a simple datamart that will serve to reinforce all the concepts learned through the book.
Table of Contents (27 chapters)
Pentaho 3.2 Data Integration Beginner's Guide
Credits
Foreword
The Kettle Project
About the Author
About the Reviewers
Preface
Index

Time for action – creating a simple hello world job


In this tutorial, you will create a very simple job so that you get an idea of what jobs are about.

Although you will now learn how to create a job, for this tutorial you first have to create a transformation.

  1. Open Spoon.

  2. Create a new transformation.

  3. Drag a Generate rows step to the canvas and double-click it.

  4. Add a String value named message, with the value Hello, World!.

  5. Click on OK.

  6. Add a Text file output step and create a hop from the Generate rows step to this new step.

  7. Double-click the step.

  8. Type ${LABSOUTPUT}/chapter10/hello as filename.

  9. In the Fields tab, add the only field in the stream—message.

  10. Click on OK.

  11. Inside the folder where you save your work, create a folder named transformations.

  12. Save the transformation with the name hello_world_file.ktr in the folder you just created. The following is your final transformation:

    Now you are ready to create the main job.

  13. Select File | New | Job or press Ctrl+Alt+N. A new job is created.

  14. Press Ctrl+J...