December 2014
Intermediate to advanced
362 pages
8h 12m
English
Content preview from Learning Informatica PowerCenter 9.xBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Source Qualifier transformation
Source Qualifier transformation act as virtual sources in Informatica. When you drag a relational table or flat file in Mapping Designer, the Source Qualifier transformation comes along with it. A source qualifier is the point where the Informatica processing actually starts. The extraction process starts from the source qualifier.
Note that it is always recommended that the columns of source and source qualifier match. Do not change the columns or their data type in the source qualifier. You can note the data type difference in the source definition and source qualifier, which is because Informatica interprets the data in that way itself.
To discuss the source qualifier, let's take an example of 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.