March 2018
Beginner to intermediate
514 pages
13h 11m
English
book
Mastering Qlik Sense
by Ralf Becher, Karl Pover, Jason Michaelides, Dilyana Ivanova, David Alcobero, Martin Mahler, Juan Ignacio Vitantonio
Content preview from Mastering Qlik Sense
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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.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.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.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.
Optimized loads
Whenever you load data from a QVD file, the load will be optimized. This means that loading the data will be from 10 to 100 times faster than any other source. However, if you make any operations within the load statement, Qlik Sense will have to uncompress the file to make those operations, losing speed.
There are two things that you can do within the load statement and still have an optimized and fast load:
- Rename the fields using the AS operator.
- Using the Exists() function in a Where clause. This function checks whether a specific field value has already been loaded in the script.
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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.