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 – getting orders in a range of dates using parameters


Now you will modify your transformation so it shows orders in a range of dates.

  1. Open the transformation from the previous tutorial and save it under a new name.

  2. From the Input category, add a Get System Info step.

  3. Double-click on it and use the step to get the command line argument 1 and command line argument 2 values. Name the fields date_from and date_to respectively. Create a hop from the Get System Info step to the Table input step.

  4. Double-click on the Table input step.

  5. Modify the SELECT statement as follows:

    SELECT
      ORDERNUMBER
    , ORDERDATE
    , REQUIREDDATE
    , SHIPPEDDATE
    FROM ORDERS
    WHERE STATUS = 'Shipped'
    AND ORDERDATE BETWEEN ? AND ?
  6. In the drop-down list to the right of the Insert data from step, select Get System Info as the incoming step.

  7. Click on OK.

  8. With the Select values step selected, click on the Preview button.

  9. Click on Configure.

  10. Fill the Arguments grid. To the right of the argument 01, write 2004-12-01. To the right...