O'Reilly logo

Getting Started with Talend Open Studio for Data Integration by Jonathan Bowen

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Maps and expressions

In most integration scenarios, we are unlikely to find that all data fields can be passed from one system to another without any modification. Because different systems model the same objects in different ways, there's often the need, to not only change the file format, but also to change the data model and content in some way.

For our next job design, we'll do another CSV to XML transformation; but this time, the data models of the input and the output (and hence the schemas) will be different. We'll use the Studio's mapping component and Expression editor to help us deal with these differences.

To start off, let's look at our two data models to examine the differences. Our CSV file is a customer datafile and has the following ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required