In this short article, I’ll show you how to use Power Query and Power BI to populate values with leading zeros. The original post from 3 March seems to be deleted, so I publish here again a short version.
In the picture below you can see that the values in the “Region ID” column have a different length. The goal is that all values should be exactly 7 digits long. Missing values must be added at the beginning of the text.
The goal is to realize in a simple way. In Power Query and Power BI we need the command Text.PadStart. If you enter the command
=#shared in an empty query, you can find the command description.
The description states that a text value should be padded to a predefined length with a character to be specified at the beginning of the text. So in our example: [RegionCode], 7, “0”.
Create a new column using the following code, which you can enter directly in the editor:
The result looks as desired.
If the text should be padded with zeros at the end, then use
Text.PadEnd instead of Text.PadStart. The rest stays the same.
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You can find more articles about Power Query in the Power Query Online Buch.
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