Book Image

Talend Open Studio Cookbook

By : Rick Barton
Book Image

Talend Open Studio Cookbook

By: Rick Barton

Overview of this book

Data integration is a key component of an organization's technical strategy, yet historically the tools have been very expensive. Talend Open Studio is the world's leading open source data integration product and has played a huge part in making open source data integration a popular choice for businesses worldwide.This book is a welcome addition to the small but growing library of Talend Open Studio resources. From working with schemas to creating and validating test data, to scheduling your Talend code, you will get acquainted with the various Talend database handling techniques. Each recipe is designed to provide the key learning point in a short, simple and effective manner.This comprehensive guide provides practical exercises that cover all areas of the Talend development lifecycle including development, testing, debugging and deployment. The book delivers design patterns, hints, tips, and advice in a series of short and focused exercises that can be approached as a reference for more seasoned developers or as a series of useful learning tutorials for the beginner.The book covers the basics in terms of schema usage and mappings, along with dedicated sections that will allow you to get more from tMap, files, databases and XML. Geared towards the whole lifecycle, the Talend Open Studio Cookbook shows readers great ways to handle everyday tasks, and provides an insight into all areas of a development cycle including coding, testing, and debugging of code to provide start-to-finish coverage of the product.
Table of Contents (21 chapters)
Talend Open Studio Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Common Type Conversions
Index

Creating schemas from lists


This next recipe doesn’t make use of Talend at all. Rather, it is a technique to save lots of tedious typing when creating schemas from documents and/or spreadsheets.

Getting ready

Open the MS Word document customerFieldList.docx. As you can see, there are a reasonable number of field descriptions that would take a reasonable amount of time to define individually.

How to do it...

  1. Select all the column names from the word document and paste into an Excel spreadsheet:

  2. Now select all the fields, right click it, and select Copy.

  3. Go to the second worksheet and click the top-left cell.

  4. Then, right-click and select Paste Special, and select the option Transpose:

  5. This will copy the previous vertical list into a horizontal list.

  6. Delete the initial worksheet and save the file as a CSV file named TransposedCustomer.csv

  7. You can then import the CSV file using the wizard for File delimited and stating that the file has a heading row.

  8. Set the field separator as Comma, and tick the box...