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  • Book Overview & Buying Pentaho Data Integration 4 Cookbook
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Pentaho Data Integration 4 Cookbook

Pentaho Data Integration 4 Cookbook

4.8 (8)
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Pentaho Data Integration 4 Cookbook

Pentaho Data Integration 4 Cookbook

4.8 (8)

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)
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Pentaho Data Integration 4 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Comparing files and folders


Kettle allows you to compare files and folders through the following job entries: File Compare and Compare folder. In this recipe, you will use the first of those entries, which is used for comparing the content of two files. Assume that periodically you receive a file with new museums data to incorporate into your database. You will compare the new and the previous version of the file. If the files are equal, you do nothing, but if they are different, you will read the new file.

Getting ready

To create and test this recipe, you will need two files: the older version of the museum file (LastMuseumsFileReceived.xml), and the new file (NewMuseumsFileReceived.xml).

On the book's website, you will find sample files to play with. In particular, NewMuseumsFileReceived(equal).xml is equal to the LastMuseumsFileReceived.xml file, and NewMuseumsFileReceived(different).xml, as implied by its name, is different. With these files, you will be able to test the different situations...

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