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

Copying or moving a custom list of files


Sometimes, you don't have the names of files to move or copy beforehand. In these cases, you can take advantage of the Add filename to result prompt existing in several Kettle steps and job entries.

Let's see an example. Suppose that you receive Excel files daily with book orders from different branches and, you need to process these files creating a new Excel file with all the incoming orders. Then, finally, you want to move the source files to a destination folder.

Getting ready

In order to do this exercise, you need a directory named booksOrders with several Excel files. Each file should have two columns: one for the id_title and another for the Quantity. Also, it is necessary to have a destination folder named processedOrders.

How to do it...

Carry out the following steps:

  1. Create a new transformation. This transformation will take all Excel files from the source directory and write them into a single Excel file.

  2. Drop an Excel Input step into the canvas...