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Pentaho Data Integration Cookbook - Second Edition

You're reading from   Pentaho Data Integration Cookbook - Second Edition The premier open source ETL tool is at your command with this recipe-packed cookbook. Learn to use data sources in Kettle, avoid pitfalls, and dig out the advanced features of Pentaho Data Integration the easy way.

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Product type Paperback
Published in Dec 2013
Publisher Packt
ISBN-13 9781783280674
Length 462 pages
Edition 2nd Edition
Languages
Tools
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Table of Contents (21) Chapters Close

Pentaho Data Integration Cookbook Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Working with Databases FREE CHAPTER 2. Reading and Writing Files 3. Working with Big Data and Cloud Sources 4. Manipulating XML Structures 5. File Management 6. Looking for Data 7. Understanding and Optimizing Data Flows 8. Executing and Re-using Jobs and Transformations 9. Integrating Kettle and the Pentaho Suite 10. Getting the Most Out of Kettle 11. Utilizing Visualization Tools in Kettle 12. Data Analytics Data Structures References Index

Looking for values in a database table


In order to search for data in a database, Kettle offers several ways of accessing the data. The simplest situation is the one in which you need to get one or more columns from a single database table. In this recipe, you will learn how to do this by using the Database lookup step. We will work with the Steel Wheels sample data. If you wish to become more familiar with the sample dataset or need to learn how to configure database access, refer to Chapter 1, Working with Databases. Suppose that you want to look for products that match a given search term, and whose prices are below a given value, this recipe shows you how to do this.

Getting ready

In order to follow this recipe, you need the Steel Wheels database.

How to do it...

Perform the following steps:

  1. Create a new transformation.

  2. Bring over a Data Grid step from the Input category. Open the step. Under the Meta tab, add two string items prod and max_price. Then, complete the Data tab, as shown in the...

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