72 – Dual Set Analysis

72 – Dual Set Analysis

By default you need to reference the display (read: string) value of a dual field in set analysis versus the numerical value. I personally think this is a weird behavior of Qlik, however it is what it is. The downside to this is that string operations are much slower...
73 – Wildcard Load

73 – Wildcard Load

One good thing to know is that you can use an asterisk * within a file name. Qlik will load all the files that fit the criteria. Say you have a directory named QVD, which has all of your QVDs prepped and ready for your data model. You can simply do the following to...
74 – SubField

74 – SubField

If you are like me, you probably use SubField a lot. I had used it for years before I stumbled across one of its most powerful features in someone else’s code. If you do not provide the position parameter, it will expand a record for each delimited value. I’ve worked...
75 – Arrays

75 – Arrays

Arrays and/or Lists are very common in programming languages. In Qlik scripting there are two ways to go about creating an array of sorts. The first way is storing a list in a variable: The second way is by using a field: Source Result: The main use of these will be...
76 – Remove Unused Fields

76 – Remove Unused Fields

I can’t tell you how many times a client has said to leave a field in the data model just in case they want to use it later. Just don’t do it. Take it out now, if they want to use it later, then bring it in later. You can easily set up the app so that it is a super...
73 – Wildcard Load

77 – Keys

Here are a few things I strongly suggest in working with Qlik key fields. Make separate key fields* Prefix the field with % Set HidePrefix variable to % Use AutoNumber Because of how the association engine works, you should never use a key field in an expression. It...