Talend Certification Tips - Tip #002 : Know your tMap Joins
Hi Talend Addicts, Ready to learn more about the Talend great ETL tool! This post is part of the new series discussing the most important things (Tips) to know for anybody who want to tackle the Talend Open Studio for Data Integration Certification Exam. Today's Tip is: Tip #002: Know your tMap Joins! tMap is one, if not THE, most important component in a Talend Job. P ersonally I have never seen any Talend Job without at least one occurence of this component, and believe it or not many questions around this component on the certification exam! the tMap can be used to (obviously) map data from input to output, but even more. Map data - already said that, but very important, so I say it again! Filter input data Filter output data Transform data Join data In today's post I'll focus on the last but not least one - JOIN Data So let's kick this off with some examples; and see what are the different types of joins you can build with Talend tMap component. Setting up the
