Book Image

Pentaho Data Integration 4 Cookbook

Book Image

Pentaho Data Integration 4 Cookbook

Overview of this book

Pentaho Data Integration (PDI, also called Kettle), one of the data integration tools leaders, is broadly used for all kind of data manipulation such as migrating data between applications or databases, exporting data from databases to flat files, data cleansing, and much more. Do you need quick solutions to the problems you face while using Kettle? Pentaho Data Integration 4 Cookbook explains Kettle features in detail through clear and practical recipes that you can quickly apply to your solutions. The recipes cover a broad range of topics including processing files, working with databases, understanding XML structures, integrating with Pentaho BI Suite, and more. Pentaho Data Integration 4 Cookbook shows you how to take advantage of all the aspects of Kettle through a set of practical recipes organized to find quick solutions to your needs. The initial chapters explain the details about working with databases, files, and XML structures. Then you will see different ways for searching data, executing and reusing jobs and transformations, and manipulating streams. Further, you will learn all the available options for integrating Kettle with other Pentaho tools. Pentaho Data Integration 4 Cookbook has plenty of recipes with easy step-by-step instructions to accomplish specific tasks. There are examples and code that are ready for adaptation to individual needs.
Table of Contents (17 chapters)
Pentaho Data Integration 4 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Getting information about transformations and jobs (repository-based)


In the previous recipe, you learned to read the .ktr and .kjb files to get information from the transformation and job files respectively. Spoon also allows for storing this data in tables in a relational database when using a repository-based configuration.

So, let's do the same task that we did in the previous recipe, but this time connect to a Kettle repository. The objective is to search for the Modified Java Script Value steps inside a set of transformations.

Getting ready

For running this recipe, you must have a Kettle repository and a set of transformations stored in it. If you don't have a list of sample transformations to play with, then you can connect to the repository and import them from the PDI samples directory.

How to do it...

Carry out the following steps:

  1. Create a new transformation.

  2. Drop a Table input step from the Input category into the canvas.

  3. Create a connection to your repository database.

  4. Type the following...