So the Calendar Table is now starting to look pretty good. I used the above approach to add the following columns Column You can add as many columns as you need in your table. wrap the column name with the function =Date.Year( ).The steps are simple to add a Year column I first renamed my Column1 to “Date” and then inserted a new column Now it’s time to add your calendar metadata, like days, months, quarters etc. You’ll learn Power Query from the best in the business, two Excel MVPs Ken Puls and Miguel Escobar. We’ve included 7 Hours of Self-Paced Video over 31 Courses, with lots of example files, and a Digital Badge powered by Acclaim. Our New Online Power Query Course just launched this year. Interested in Learning How to Do this Kind of Thing? You can either click on the cog icon next to the Added Index step (see 2) or you can simply change it in the formula bar (see 3). I like my index to start at 1, but it is easy to change. The Index column starts at 0 by default (see 1 below). The Power Query team has thought of everything! Just accept the default options on the screen prompt. Note the minus 1 is outside of the brackets.ĭuration.Days(DateTime.Date(DateTime.FixedLocalNow()) – #date(2015,1,1)) -1 Convert the list to a table If you want your calendar to have a 1 day lag (ie when you refresh it today, you want all dates up until yesterday’s date, then simply subtract 1 from the formula above like this. There are other ways to do this, including this one described by Dominik, any approach is fine. As I am sure you can work out, this code uses a function Duration.Days to count how many days there are between today’s date and the start date you entered. You just need to make sure the date used above matches the first date in your list. Simply replace the 100 in the formula with this Power Query code substituteĭuration.Days(DateTime.Date(DateTime.FixedLocalNow())-#date(2015,1,1)) ![]() We need to change this new line of code to create the dynamic end date. For now we will just select 100 days.īut we don’t actually want 100 days, we want a “dynamic end date”. Note how Power Query gives you some help about the function you just typed in.Įnter a start date, the number (count) of days you want and the granularity of the calendar (step 1 means daily), and press OK. Note that the Power Query Language is case sensitive so you must capitalise correctly.Īnd then press the “Invoke” Button. The first step is to use the Power Query Language in the formula bar to create a list of dates. You will need this so you can easily see the Power Query Code that is generated by the UI tools, and also to allow you to edit the code by hand when needed. ![]() ![]() If you haven’t done so already, turn on your Formula bar from the view menu. The Blank Query option is right at the bottom of the “From Other Sources” menu. First Create a New Blank Power Query Workbook. You can write some snappy Excel functions in your source calendar table to code around this, or you could make your DAX more complex, but better still – I think this is a great opportunity to learn some new skills – Power Query.īuilding a custom calendar from scratch in Power Query is actually quite straight forward, and I am going to take you through it step by step below. It is a pain to change the import filter on your Excel calendar each time you refresh (not practicable actually). There is one problem with this approach however – the date over runs when you are looking at last years’ data in a pivot.Īs you can see above, we have dates into the future that are showing sales for last year with no sales this year – because we haven’t had “this year” yet. Historically I have just used an Excel workbook that I created with all the relevant columns, and enough rows of dates to cover for the next year. There are lots of different ways of creating a custom calendar for use in your Power Pivot workbooks, and plenty of discussion about them on (25 prior to this one). If you follow the steps below, you will get a good sense of how capable Power Query is, and may spark your interest to learn more about it. In this post, I am going to show you how simple it is to create a custom calendar using Power Query.
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