Create a new table with monthly dates and other repeated lines in Power BI

[barbaracruvinel]

I have a data that has CNPJ information,
Region, Inicial Date, Final Date and other information, like this:

And I need a column with all monthly dates on the first day of the month of each month to be created for each month from the start date to the end, repeating the other columns, like this:

Does anyone know how I can create a new table, like in the second photo, based on the data that is in the first photo?

Helppppp, please

[Ashish_Mathur · Accepted solution]

Hi,

This M code works

let
    Source = Excel.CurrentWorkbook(){[Name="Data"]}[Content],
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"CNPJ", Int64.Type}, {"Region", type text}, {"Value", Int64.Type}, {"User", type text}, {"Initial Date", type date}, {"Final Date", type date}}),
    #"Duplicated Column" = Table.DuplicateColumn(#"Changed Type", "Initial Date", "Initial Date - Copy"),
    #"Calculated Start of Month" = Table.TransformColumns(#"Duplicated Column",{{"Initial Date - Copy", Date.StartOfMonth, type datetime}}),
    #"Duplicated Column1" = Table.DuplicateColumn(#"Calculated Start of Month", "Final Date", "Final Date - Copy"),
    #"Calculated Start of Month1" = Table.TransformColumns(#"Duplicated Column1",{{"Final Date - Copy", Date.StartOfMonth, type datetime}}),
    #"Added Custom" = Table.AddColumn(#"Calculated Start of Month1", "Mensal Date", each {Number.From([#"Initial Date - Copy"])..Number.From([#"Final Date - Copy"])}),
    #"Expanded Mensal Date" = Table.ExpandListColumn(#"Added Custom", "Mensal Date"),
    #"Removed Columns" = Table.RemoveColumns(#"Expanded Mensal Date",{"Initial Date - Copy", "Final Date - Copy"}),
    #"Changed Type1" = Table.TransformColumnTypes(#"Removed Columns",{{"Mensal Date", type date}}),
    #"Reordered Columns" = Table.ReorderColumns(#"Changed Type1",{"Mensal Date", "CNPJ", "Region", "Value", "User", "Initial Date", "Final Date"})
in
    #"Reordered Columns"

Hope this helps.

[barbaracruvinel]

How does the monthly date appear from month to month? 01/01/2018, 02/01/2018, 03/01/2018 .... ? Is it the first day of every month?

[Ashish_Mathur]

Sorry but i do not understand your question.

[barbaracruvinel]

it is like this

1/1/2018

1/2/2018

1/3/2018

1/4/2018

1/5/2018

1/6/2018

1/7/2018

1/8/2018

1/9/2018

1/10/2018

1/11/2018

1/12/2018

1/13/2018

1/14/2018

1/15/2018

1/16/2018

and I need dates like this:

I need it like this

1/1/2018

2/1/2018

3/1/2018

4/1/2018

5/1/2018

6/1/2018

7/1/2018

8/1/2018

9/1/2018

10/1/2018

11/1/2018

12/1/2018

1/1/2019

2/1/2019

3/1/2019

4/1/2019

from month to month.

[Ashish_Mathur]

Hi,

My solution returns one row for every day.  If you want one row for every month, then refer to the steps in this link - Generating Rows by Month for Date Ranges in Power Query