Category: Power Query

Multiplying NULL values in Power Query

I was working through a scenario today and came up against something unexpected when multiplying NULL values in Power Query. Background I have a fairly simple table of transactions that looks like this: And wanted to turn it into this:

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Refer to other steps in Power Query

Last week I posted a technique to show how to calculate a rolling 12 months in Power Query.  One of the techniques used was to refer to other steps during the construction of that query.  Shortly after publishing that, a

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Rolling 12 Months in Power Query

Last week, in a blog comment, a reader asked how to filter their data to only show the most recent rolling 12 month period.  This post looks at how I made that work in Power Query. Background Assume we have

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Important Power Query Update Available

At last, the Power Query update I’ve been waiting for has finally landed in the download site.  This is version 2.24, and sets my parameter tables technique back to a working state! You can download version 2.24 direct from Microsoft’s

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Fix Date Errors

I was teaching a course on Power Query yesterday in which we imported a text file.  Almost immediately, some of my users pointed out that their dates weren’t importing correctly, and we had to cover how to fix date errors

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MultipleUnclassified/Trusted error

If you’ve been using my fnGetParameter function to build dynamic content into your queries, you may have noticed that passing some variables recently started triggering an error message that reads as follows: We couldn’t refresh the connection ‘Power Query –

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Create a Dynamic Calendar Table

I know this topic has been covered before, but I’m teaching a course on Power Pivot tomorrow, and it’s something that I’ll probably be brining up.  As we need a calendar table for our Power Pivot solutions, a method to

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Listing Outstanding Cheques

Power Query is all about transforming and filtering data, and automating the process.  One of the tedious tasks that accountants get to deal with all the time is bank reconciliations, which is essentially the process of filtering and matching items

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Calculate Hours Worked

Chandoo posted an interesting challenge on his blog last Friday, challenging users to calculated hours worked for an employee name Billy.  This example resonated with me for a couple of reasons.  The first is that I’ve had to do this

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