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78 – AutoNumber

78 – AutoNumber

To follow up on my cardinality post, a very useful function is AutoNumber. AutoNumber will create an integer for each distinct value in your defined namespace, which is usually a field. The second parameter, allows you to define the namespace, which means you can use...
79 – Cardinality

79 – Cardinality

One of the key things to understand when trying to tune a Qlik app for performance is understanding the innerworkings. If you haven’t done so already, I very strongly suggest you read Henric’s blog Symbol Tables and Bit-Stuffed Pointers which goes into detail on how...
80 – Do While

80 – Do While

Most loops you will see are For loops. These are great if you can programmatically determine the number of loops you need to do. For example the number of rows of a table. However, what if you need to loop as long as it takes to finish? You don’t know how long it will...
81 – ApplyMap

81 – ApplyMap

This is a post that might be common knowledge to you, but if not this can be a crucial addition to your workflow. ApplyMap is a function that is very similar to VLookup in Excel. Essentially you can utilize a mapping table that you can bulk find and replace, provide...
78 – AutoNumber

82 – Placeholder Tables

You might have noticed me using these in a few of the previous examples. The idea is that you create an empty table that you can concatenate to. The number one reason I do this is to be explicit. I know Qlik can and will auto-concatenate, but I want to be extremely...
83 – Over-Engineering

83 – Over-Engineering

You should keep in mind that just because you can do something, doesn’t necessarily mean you should. Try and be aware of the actual value something will provide. If it takes you 40 hours to automate something that is done manually for 5 minutes every month, it would...
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