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 – getting data about shipped orders


Let's continue working with the sample data.

  1. Create a new transformation.

  2. Select the Design view.

  3. Expand the input category of steps and drag a Table Input step to the canvas.

  4. Double-click the step.

  5. Click on the Get SQL select statement... button. The database explorer window appears.

  6. Expand the tables list and select ORDERS.

  7. Click on OK.

  8. PDI asks if you want to include the field names in the SQL. Answer Yes.

  9. The SQL box gets filled with a SELECT SQL statement.

    SELECT
      ORDERNUMBER
    , ORDERDATE
    , REQUIREDDATE
    , SHIPPEDDATE
    , STATUS
    , COMMENTS
    , CUSTOMERNUMBER
    FROM ORDERS
  10. At the end of the SQL statement, add the following clause:

    WHERE STATUS = 'Shipped'
  11. Click Preview and then OK. The following window appears:

  12. Close the window and click OK to close the step configuration window.

  13. After the Table input step add a Calculator step, a Number Range step, a Sort step, and a Select values step and link them as follows:

  14. With the Calculator step, add an Integer...