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Power Query - Referencing other queries really slow.|Power Query|Excel Forum|My Online Training Hub

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Power Query - Referencing other queries really slow.
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Richard K
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May 30, 2022 - 1:00 am
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I have a excel query set up which takes CSV files from a folder and runs a function on each to transform and format them individually, I then use table.combine to join all these tables into a single table within this (connection only) query.

I then have two other queries that reference the initial query where they each filter the [selection] column for different values and then pivot the [header] and [value] columns into multiple columns.

The reason I need to split these into two queries is so that I can use Dax Studio to export them to two separate csv files which will later be reference by a data model.

At the moment when I update the queries they both run at the same time and it appears that the initial query is run twice. Can anyone advise of a way I can make this more efficient? 

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Mynda Treacy
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May 30, 2022 - 5:31 pm
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Hi Richard,

This post has some tips on improving query performance.

Hope that helps.

Mynda

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Richard K
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May 31, 2022 - 8:46 am
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Thanks Mynda,

That's given me a few ideas as to how I can improve the refresh speed.

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