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Tracking changes for projects is very important and allows us to revert back to previous versions. There is out-of-the box software to handle source control, but not all environments are equipped or disciplined enough to handle full version control–especially SQL objects, which can be changed with a simple F5 while applications are running. In the […]
Recently I was working on a project that had many different input tables that needed to be filtered into one. I’ve worked on similar projects before and it’s usually not too bad to compare a few tables. But this time, with so many different tables, using my normal approach would have been too time-consuming. I […]
It’s funny how much trouble can be caused by nothing. Because we cannot see it, the absence of a value is often overlooked in a data set. In Qlik, missing values play a key role in representing relationships (or the lack thereof) between entities. It’s important to deal with them appropriately. When handling common cases […]
This article will go over how to transform distinct column values into columns and transform columns into distinct column values using the PIVOT and UNPIVOT function. There are 2 different ways to use these functions – static and dynamic. The static approach is used when the distinct columns or column values are known. If the […]