Book Image

Learning Pentaho Data Integration 8 CE - Third Edition

By : Carina Roldán
Book Image

Learning Pentaho Data Integration 8 CE - Third Edition

By: Carina Roldán

Overview of this book

Pentaho Data Integration(PDI) is an intuitive and graphical environment packed with drag-and-drop design and powerful Extract-Tranform-Load (ETL) capabilities. This book shows and explains the new interactive features of Spoon, the revamped look and feel, and the newest features of the tool including transformations and jobs Executors and the invaluable Metadata Injection capability. We begin with the installation of PDI software and then move on to cover all the key PDI concepts. Each of the chapter introduces new features, enabling you to gradually get practicing with the tool. First, you will learn to do all kind of data manipulation and work with simple plain files. Then, the book teaches you how you can work with relational databases inside PDI. Moreover, you will be given a primer on data warehouse concepts and you will learn how to load data in a data warehouse. During the course of this book, you will be familiarized with its intuitive, graphical and drag-and-drop design environment. By the end of this book, you will learn everything you need to know in order to meet your data manipulation requirements. Besides, your will be given best practices and advises for designing and deploying your projects.
Table of Contents (17 chapters)

Accessing copied rows for different purposes

In Chapter 12, Creating Portable and Reusable Transformations, you learned to copy a set of rows in one Transformation, and to access the copied rows using the Get rows from result step. Doing this allowed the rows to flow from one transformation to another. This is only one of the uses of the copied rows.

In general, when you copy rows using the Copy rows to result step, the copied rows become available to be used by the entries that are executed afterward. The next subsections shows you the possibilities.

Using the copied rows to manage files in advanced ways

In Chapter 3, Creating Basic Task Flows, you learned to manage files by copying, moving, and zipping files among other...