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MikeSolvesBI's avatar
MikeSolvesBI
Helper II
3 years ago
Solved

using the Calendar function and power query

Hello,

I know I can create a table using the Calendar function in DAX.

 

Is there a way that I can then use Power Query to add columns to this table or should I just use Power Query to create the Calendar?

 

Thanks,

 

Michael

  • Hi Michael,

     

    I recommend you to create the table in Power Query.

     

    Try the following script by creating a blank query. Pleas adjust the first two lines (StartDate and EndDate) to your needs directly in the query editor.

    let
        StartDate = #date(2020,1,1),
        EndDate = #date(2023,12,31),
        DateList = List.Dates(StartDate, Number.From(EndDate) - Number.From(StartDate), #duration(1, 0, 0, 0)),
        DatesAsTable = Table.FromList(DateList, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
        RenamedColumnDate = Table.RenameColumns(DatesAsTable, {{"Column1", "PK_Date"}}),
        ChangedTypeDate = Table.TransformColumnTypes(RenamedColumnDate,{{"PK_Date", type date}}),
        Year = Table.AddColumn(ChangedTypeDate, "Year", each Date.Year([PK_Date])),
        QuarterOfYear = Table.AddColumn(Year, "QuarterofYear", each Date.QuarterOfYear([PK_Date])),
        QuarterNameOfYear = Table.AddColumn(QuarterOfYear, "QuarterNameOfYear", each "Q" & Number.ToText([QuarterofYear])),
        QuarterWithYear = Table.AddColumn(QuarterNameOfYear, "QuarterWithYear", each Number.ToText([Year]) & "-" & [QuarterNameOfYear]),
        MonthNum = Table.AddColumn(QuarterWithYear, "MonthNum", each Date.Month([PK_Date])),
        MonthName = Table.AddColumn(MonthNum, "MonthName", each Date.ToText([PK_Date], "MMMM")),
        MonthNameShort = Table.AddColumn(MonthName, "MonthNameShort", each Date.ToText([PK_Date], "MMM")),
        MonthWIthYear = Table.AddColumn(MonthNameShort, "MonthWithYear", each Number.ToText([Year]) & "-" & [MonthNameShort]),
        MonthNameSorting = Table.AddColumn(MonthWIthYear, "MonthNameSorting", each [Year] * 10 + [MonthNum]),
        WeekNumOfYear = Table.AddColumn(MonthNameSorting, "WeekNumOfYear", each Date.WeekOfYear([PK_Date])),
        WeekNameOfYear = Table.AddColumn(WeekNumOfYear, "WeekNameOfYear", each "KW" & Text.PadStart(Number.ToText([WeekNumOfYear]),2,"0")),
        WeekWithYear = Table.AddColumn(WeekNameOfYear, "WeekWithYear", each Number.ToText([Year]) & "-" & [WeekNameOfYear]),
        DayNumOfYear = Table.AddColumn(WeekWithYear, "DayNumOfWeek", each Date.DayOfWeek([PK_Date])+1),
        DayNameOfWeek = Table.AddColumn(DayNumOfYear, "DayNameofWeek", each Text.Start(Date.DayOfWeekName([PK_Date]), 2)),
        ChangeType = Table.TransformColumnTypes(DayNameOfWeek,{{"Year", Int64.Type}, {"QuarterofYear", Int64.Type}, {"MonthNum", Int64.Type}, {"WeekNumOfYear", Int64.Type}, {"QuarterNameOfYear", type text}, {"QuarterWithYear", type text}, {"MonthName", type text}, {"MonthNameShort", type text}, {"MonthWithYear", type text}, {"WeekNameOfYear", type text}, {"DayNameofWeek", type text}, {"DayNumOfWeek", Int64.Type}, {"MonthNameSorting", Int64.Type}})
    in
        ChangeType

    creat blank query 

     

     

    adjust parameters

    result

     

    Best regards
    Michael
    -----------------------------------------------------
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
    Appreciate your thumbs up!
    @ me in replies or I'll lose your thread.

     

     

6 Replies

  • Mikelytics's avatar
    Mikelytics
    Resident Rockstar

    Hi Michael,

     

    I recommend you to create the table in Power Query.

     

    Try the following script by creating a blank query. Pleas adjust the first two lines (StartDate and EndDate) to your needs directly in the query editor.

    let
        StartDate = #date(2020,1,1),
        EndDate = #date(2023,12,31),
        DateList = List.Dates(StartDate, Number.From(EndDate) - Number.From(StartDate), #duration(1, 0, 0, 0)),
        DatesAsTable = Table.FromList(DateList, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
        RenamedColumnDate = Table.RenameColumns(DatesAsTable, {{"Column1", "PK_Date"}}),
        ChangedTypeDate = Table.TransformColumnTypes(RenamedColumnDate,{{"PK_Date", type date}}),
        Year = Table.AddColumn(ChangedTypeDate, "Year", each Date.Year([PK_Date])),
        QuarterOfYear = Table.AddColumn(Year, "QuarterofYear", each Date.QuarterOfYear([PK_Date])),
        QuarterNameOfYear = Table.AddColumn(QuarterOfYear, "QuarterNameOfYear", each "Q" & Number.ToText([QuarterofYear])),
        QuarterWithYear = Table.AddColumn(QuarterNameOfYear, "QuarterWithYear", each Number.ToText([Year]) & "-" & [QuarterNameOfYear]),
        MonthNum = Table.AddColumn(QuarterWithYear, "MonthNum", each Date.Month([PK_Date])),
        MonthName = Table.AddColumn(MonthNum, "MonthName", each Date.ToText([PK_Date], "MMMM")),
        MonthNameShort = Table.AddColumn(MonthName, "MonthNameShort", each Date.ToText([PK_Date], "MMM")),
        MonthWIthYear = Table.AddColumn(MonthNameShort, "MonthWithYear", each Number.ToText([Year]) & "-" & [MonthNameShort]),
        MonthNameSorting = Table.AddColumn(MonthWIthYear, "MonthNameSorting", each [Year] * 10 + [MonthNum]),
        WeekNumOfYear = Table.AddColumn(MonthNameSorting, "WeekNumOfYear", each Date.WeekOfYear([PK_Date])),
        WeekNameOfYear = Table.AddColumn(WeekNumOfYear, "WeekNameOfYear", each "KW" & Text.PadStart(Number.ToText([WeekNumOfYear]),2,"0")),
        WeekWithYear = Table.AddColumn(WeekNameOfYear, "WeekWithYear", each Number.ToText([Year]) & "-" & [WeekNameOfYear]),
        DayNumOfYear = Table.AddColumn(WeekWithYear, "DayNumOfWeek", each Date.DayOfWeek([PK_Date])+1),
        DayNameOfWeek = Table.AddColumn(DayNumOfYear, "DayNameofWeek", each Text.Start(Date.DayOfWeekName([PK_Date]), 2)),
        ChangeType = Table.TransformColumnTypes(DayNameOfWeek,{{"Year", Int64.Type}, {"QuarterofYear", Int64.Type}, {"MonthNum", Int64.Type}, {"WeekNumOfYear", Int64.Type}, {"QuarterNameOfYear", type text}, {"QuarterWithYear", type text}, {"MonthName", type text}, {"MonthNameShort", type text}, {"MonthWithYear", type text}, {"WeekNameOfYear", type text}, {"DayNameofWeek", type text}, {"DayNumOfWeek", Int64.Type}, {"MonthNameSorting", Int64.Type}})
    in
        ChangeType

    creat blank query 

     

     

    adjust parameters

    result

     

    Best regards
    Michael
    -----------------------------------------------------
    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
    Appreciate your thumbs up!
    @ me in replies or I'll lose your thread.

     

     

    • vijayk416's avatar
      vijayk416
      Frequent Visitor

      Should this not be multiplied by 100 instead of by 10?

      MonthNameSorting = Table.AddColumn(MonthWIthYear, "MonthNameSorting", each [Year] * 10 + [MonthNum]),

  • In general, Rule of thumb is First Power Query, and then model, and then DAX based fields/measures.

     

    Like you said, we can do Calendar table in power query and DAX. I prefer personally M Query and then model the data types and formats. There are lot of articles on the web on how to create both ways. It gets more interesting when you want to do Fiscal Calendar also. 

     

    To answer about adding columns,

          you can do in power query

          you can do in DAX

          

    However, this is not possible, creating the DAX table first and then adding columns in Power Query. Other way works!

     

  • CCUK22's avatar
    CCUK22
    Frequent Visitor

    Thank you Mikelytics, I need dim_date and found your script!