Book Image

Learning Pentaho Data Integration 8 CE - Third Edition

Book Image

Learning Pentaho Data Integration 8 CE - Third Edition

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)

Sorting data


To have the data sorted, something that we haven't cared about until now, is a very common requirement in real use cases. It can be a purpose by itself, but it's also a prerequisite for many of the operations that we will discuss in this chapter.

Sorting a dataset with the sort rows step

Sorting with PDI is really easy to implement but there are a couple of settings that you have to consider when doing it. Learning to do that is the objective of this quick tutorial.

For this exercise, we will use, one more time, the sales_data.csv file that we used in Chapter 4, Reading and Writing Files. Here, you have sample lines of the file:

ORDERDATE,ORDERNUMBER,ORDERLINENUMBER,PRODUCTCODE,PRODUCTLINE,QUANTITYORDERED,PRICEEACH,SALES
2/20/2004 0:00 ,10223,10,S24_4278 ,Planes ,23,74.62,1716.26
11/21/2004 0:00,10337,3,S18_4027 ,Classic Cars ,36,100 ,5679.36
6/16/2003 0:00 ,10131,2,S700_4002,Planes ,26,85.13,2213.38
7/6/2004 0:00 ,10266,5,S18_1984 ,Classic Cars ,49,100 ,6203.4
10/16/2004 0:00,10310...