Book Image

Pentaho Data Integration Beginner's Guide - Second Edition - Second Edition

By : María Carina Roldán
Book Image

Pentaho Data Integration Beginner's Guide - Second Edition - Second Edition

By: María Carina Roldán

Overview of this book

Capturing, manipulating, cleansing, transferring, and loading data effectively are the prime requirements in every IT organization. Achieving these tasks require people devoted to developing extensive software programs, or investing in ETL or data integration tools that can simplify this work. Pentaho Data Integration is a full-featured open source ETL solution that allows you to meet these requirements. Pentaho Data Integration has an intuitive, graphical, drag-and-drop design environment and its ETL capabilities are powerful. However, getting started with Pentaho Data Integration can be difficult or confusing. "Pentaho Data Integration Beginner's Guide - Second Edition" provides the guidance needed to overcome that difficulty, covering all the possible key features of Pentaho Data Integration. "Pentaho Data Integration Beginner's Guide - Second Edition" starts with the installation of Pentaho Data Integration software and then moves on to cover all the key Pentaho Data Integration concepts. Each chapter introduces new features, allowing you to gradually get involved with the tool. First, you will learn to do all kinds of data manipulation and work with plain files. Then, the book gives you a primer on databases and teaches you how to work with databases inside Pentaho Data Integration. Moreover, you will be introduced to data warehouse concepts and you will learn how to load data in a data warehouse. After that, you will learn to implement simple and complex processes. Finally, you will have the opportunity of applying and reinforcing all the learned concepts through the implementation of a simple datamart. With "Pentaho Data Integration Beginner's Guide - Second Edition", you will learn everything you need to know in order to meet your data manipulation requirements.
Table of Contents (26 chapters)
Pentaho Data Integration Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Best Practices
Index

Time for action – creating a simple job and getting familiar with the design process


Now you will create a job similar to the one you just created, but a little more elaborate. You will add some extra tasks in order to avoid unexpected errors.

  1. Run Spoon and open the job you created in the previous tutorial. Save it under a different name.

    Note

    We are assuming that you already ran the job, so the chapter10 folder already exists. If not, please run it or create the folder by hand.

  2. Run the job. You should see this:

  3. It's not good to receive this kind of unexpected errors! Let's modify the job so that it's more friendly. First of all, let's start over by deleting the chapter10 folder.

  4. Now expand the Conditions category of entries and select the Checks if files exist entry.

  5. Drag the entry to the canvas and drop it over the hop that leaves the START entry. When asked for splitting the hop answer Yes. This is how your job looks like:

  6. Double-click on the new entry, and in the first row of the grid, in the...