December 2014
Intermediate to advanced
362 pages
8h 12m
English
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The Joiner transformation
Joiner transformation is used to join two heterogeneous sources. You can join data from the same source type as well. The minimum criteria to join the data are matching columns in both the sources. A mapping indicating the Joiner transformation is shown in the following screenshot:
A Joiner transformation has two pipelines; one is called master and the other is called detail. One source is called the master source and the other is called detail. We do not have left or right joins like we have in the SQL database.
To use a Joiner transformation, drag all the required columns from two sources into the Joiner transformation ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.