Power query column editing - powerquery

I have a table in power bi query with dates
01.01.2020
02.01.2020
and so on..
I need to duplicate this table and replace values 01.01.2020 into 20200101 and so on. Is there an obvious, easy way for this?

First option:
Here is the simplest option I found:
Create a custom column and apply "Text.Reverse" to your column
Create a custom column and apply to the newly created "Text.Remove" for "." which will remove the "." of your string.
Here is what you will get, with "reverse date" as your column in the reverse order, and "reverse date without point" as the second column without the point.
Here is the M code:
#"Promoted Headers" = Table.PromoteHeaders(Sheet2_Sheet, [PromoteAllScalars=true]),
#"Changed Type3" = Table.TransformColumnTypes(#"Promoted Headers",{{"Date", type text}}),
#"Added Custom3" = Table.AddColumn(#"Changed Type3", "reverse date", each Text.Reverse([Date])),
#"Added Custom4" = Table.AddColumn(#"Added Custom3", "reverse date witout point", each Text.Remove([reverse date], {"."}))
Second option:
Here is a second option, which is longer:
Break down your column in three distinct columns with "." as delimiter
Add new columns with padding zero to day and months (I called them "month with zero" and "day with zero")
Concatenate
and you get you result!
Here is my starting point:
Here is the first step, "breaking the column" in "columns":
Here is the custom column with zero padding:
Here is how you concatenate:
Here is the M code:
#"Split Column by Delimiter" = Table.SplitColumn(#"Promoted Headers", "Date", Splitter.SplitTextByDelimiter(".", QuoteStyle.Csv), {"Date.1", "Date.2", "Date.3"}),
#"Changed Type" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Date.1", Int64.Type}, {"Date.2", Int64.Type}, {"Date.3", Int64.Type}}),
#"Changed Type1" = Table.TransformColumnTypes(#"Changed Type",{{"Date.1", type text}, {"Date.2", type text}}),
#"Renamed Columns" = Table.RenameColumns(#"Changed Type1",{{"Date.1", "Day"}, {"Date.2", "Month"}, {"Date.3", "Year"}}),
#"Added Custom" = Table.AddColumn(#"Renamed Columns", "Month with zero", each Text.PadStart(Text.From([Month]),2,"0")),
#"Added Custom2" = Table.AddColumn(#"Added Custom", "Day with zero", each Text.PadStart(Text.From([Day]),2,"0")),
#"Removed Columns" = Table.RemoveColumns(#"Added Custom2",{"Day", "Month"}),
#"Changed Type2" = Table.TransformColumnTypes(#"Removed Columns",{{"Year", type text}}),
#"Added Custom1" = Table.AddColumn(#"Changed Type2", "New Date", each [Year] & [Month with zero] & [Day with zero])
in
#"Added Custom1"

Related

Using power query to group alternate rows

Starting with the table above, the headers and their respective values are in alternating rows. For example for Nike, the Serial for the boots is 123 and Part No. is ABC, and it is sold on 12 Apr 22 for $23.03 with 20 left in stock. What I am trying to achieve by using power query is the following table:
I have tried adding an index and divide-integer 2 as there are 2 rows (1 header, 1 value) for each item sold and grouping using the resultant index. Then unpivot all except the index.
Then split the Attribute and Value columns using #(lf)
But I'm stuck here and running out of ideas. Any advice will be greatly appreciated. Thanks.
Try
let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"AlternateRows"=Table.AlternateRows(Source,0,1,1),
#"Added Index" = Table.AddIndexColumn(AlternateRows, "Index", 0, 1, Int64.Type),
#"Added Custom" = Table.AddColumn( #"Added Index", "Custom", each Text.Split([Column2],"#(lf)")),
#"Added Custom1" = Table.AddColumn(#"Added Custom", "Custom.1", each Text.Split([Column4],"#(lf)")),
#"Added Custom2" = Table.AddColumn(#"Added Custom1", "Custom.2", each
Table.AddColumn(
Table.UnpivotOtherColumns(
Table.AddIndexColumn(
Table.FromColumns({[Custom],[Custom.1]})
, "Index", 0, 1, Int64.Type)
, {"Index"}, "Attribute", "Value")
,"Key", each Text.From([Index]) & Text.End([Attribute],1))
),
#"Expanded Custom.2" = Table.ExpandTableColumn(#"Added Custom2", "Custom.2", {"Value", "Key"}, {"Value", "Key"}),
#"Removed Columns" = Table.RemoveColumns(#"Expanded Custom.2",{"Column2", "Column4", "Custom", "Custom.1"}),
#"Pivoted Column" = Table.Pivot(#"Removed Columns", List.Distinct(#"Removed Columns"[Key]), "Key", "Value"),
#"Renamed Columns" = Table.RenameColumns(#"Pivoted Column",{{"01", "Serial"}, {"02", "Date"}, {"11", "PartNo"}, {"12", "Price"}, {"22", "Item"}, {"32", "Stocks Left"}, {"Column1", "Currency"}, {"Column3", "Brand"}}),
#"Removed Columns1" = Table.RemoveColumns(#"Renamed Columns",{"Index"}),
#"Changed Type" = Table.TransformColumnTypes(#"Removed Columns1",{{"Date", type date}, {"Price", type number}, {"Stocks Left", type number}})
in #"Changed Type"

Powerquery - rows to columns

I have sample data like below and I am trying to use PowerQuery to transpose it into different shape.
Here is my data:
Identifier Id
Account Type 1
Account Type 2
Account Type 3
Here is what I need:
Identifier Column.1 Column.2 Column.3
Account Type 1 2 3
I tried all combinations of Transpose + Unpivot but nothing worked.
You can Group by Identifier; then do a custom Text Aggregation which you can split into columns:
let
Source = Excel.CurrentWorkbook(){[Name="Table25"]}[Content],
//type the ID column as text for later purposes
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Identifier", type text}, {"Id", type text}}),
//group by Identifier, then custom Text aggregation with delimiter
#"Grouped Rows" = Table.Group(#"Changed Type", {"Identifier"}, {
{"Id",each Text.Combine([Id],";")}}),
//split the column by the delimiter, and set the data types
#"Split Column by Delimiter" = Table.SplitColumn(#"Grouped Rows", "Id", Splitter.SplitTextByDelimiter(";", QuoteStyle.Csv), {"Id.1", "Id.2", "Id.3"}),
#"Changed Type1" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Id.1", Int64.Type}, {"Id.2", Int64.Type}, {"Id.3", Int64.Type}})
in
#"Changed Type1"
How about this?
Method1: If there will only be one identifier type, then Add column... index column .... Then click select the index column and use transform...pivot column... and select ID as the values column, advanced options Don't Aggregate
let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Added Index" = Table.AddIndexColumn(Source, "Index", 0, 1),
#"Pivoted Column" = Table.Pivot(Table.TransformColumnTypes(#"Added Index", {{"Index", type text}}, "en-US"), List.Distinct(Table.TransformColumnTypes(#"Added Index", {{"Index", type text}}, "en-US")[Index]), "Index", "Id")
in #"Pivoted Column"
Method2: If you plan to have different identifiers, then you need something a bit more complex. This adds the index within each group. Then you can pivot
let Source = Excel.CurrentWorkbook(){[Name="Table3"]}[Content],
#"Grouped Rows" = Table.Group(Source, {"Identifier"}, {{"data", each Table.AddIndexColumn(_, "Index", 1, 1), type table}}),
#"Expanded data" = Table.ExpandTableColumn(#"Grouped Rows", "data", {"Id", "Index"}, {"Id", "Index"}),
#"Pivoted Column" = Table.Pivot(Table.TransformColumnTypes(#"Expanded data", {{"Index", type text}}, "en-US"), List.Distinct(Table.TransformColumnTypes(#"Expanded data", {{"Index", type text}}, "en-US")[Index]), "Index", "Id", List.Sum)
in #"Pivoted Column"

Power Query: Duplicate Rows Based on Value

I have a column that contains the Total Stock of an item. I'd like to expand this out into 1 row per item (i.e. the item has 6 in stock and therefore appears as 6 line items).
Is this possible with power query?
The M-Code below will expand this input table
to this
let
Source = Excel.CurrentWorkbook(){[Name="tblData"]}[Content],
#"Changed Type" = Table.TransformColumnTypes(Source,{{"ColA", type text}, {"Stock", Int64.Type}}),
#"Added Custom" = Table.AddColumn(#"Changed Type", "Col", each List.Repeat({[ColA]},[Stock])),
#"Expanded Col" = Table.ExpandListColumn(#"Added Custom", "Col")
in
#"Expanded Col"

Power Query transform a table with date ranges into daily

I am using Power Query to solve the following problem:
need to create a daily split of data based on a range of dates.
I have a table with ad campaign results. Each line is a campaign with Index as ID. It has a start date, end date (or a duration) and some numeric fields, in this case AdRequests and Spend.
For each line, it's a total for the number days in Duration column.
What I need to do is un-summarise this into daily data. Populate a daily data out of it with values of spend etc being a daily average. N.B. number of campaigns varies from project to project, it needs to be dynamic
i.e. this is my input table
and here is what i want it to be. This is example for 1st campaign only, but the table needs to have all of them, and that varies from project to project.
I have to deliver this tomorrow, and so far my search hasn't yielded anything remotely good.
thank you for any ideas, in advance
Here's how I did it.
Add a custom column with the formula = {1..[Duration]}
Expand the custom column
Change start date to number type
Add a custom column with the formula = [Start Date] + [Custom] -1
Change start date back to a date type column
Delete unnecessary columns
Rename columns
let
Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Index", Int64.Type}, {"Start Date", type datetime}, {"Ad Requests", Int64.Type}, {"Spend", Int64.Type}, {"Duration", Int64.Type}, {"Daily Adrequests", Int64.Type}, {"Daily Spend", Int64.Type}}),
#"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each {1..[Duration]}),
#"Expanded Custom" = Table.ExpandListColumn(#"Added Custom", "Custom"),
#"Changed Type1" = Table.TransformColumnTypes(#"Expanded Custom",{{"Start Date", Int64.Type}}),
#"Added Custom1" = Table.AddColumn(#"Changed Type1", "Custom.1", each [Start Date] + [Custom] -1),
#"Changed Type2" = Table.TransformColumnTypes(#"Added Custom1",{{"Custom.1", type date}}),
#"Reordered Columns" = Table.ReorderColumns(#"Changed Type2",{"Index", "Custom.1", "Start Date", "Ad Requests", "Spend", "Duration", "Daily Adrequests", "Daily Spend", "Custom"}),
#"Removed Columns" = Table.RemoveColumns(#"Reordered Columns",{"Start Date", "Ad Requests", "Spend", "Duration"})
in
#"Removed Columns"
Before/After

Power Query M - Custom Column for Rolling 28 Days Sales

I'm looking for some Power Query help. I have a huge set of sales data for 40k products over one year. For each product on each day I need to add a 28 day sales column.
I essentially want to do a sumifs like the below but in M.
=SUMIFS([SALES],[Product Code],[This Product Code],[Date],<=[This Date],[Date],>=[This Date]-28))
Try this then, it should work but would likely do so at a crawl
let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Sales", Int64.Type}, {"Product Code", type text}, {"Date", type date}}),
TotalAmountAdded = Table.AddColumn(Source, "Total Amount", (i) => List.Sum(Table.SelectRows(Source, each ([Product Code] = i[Product Code] and [Date]<=i[Date] and [Date]>=Date.AddDays(i[Date],-28)))[Sales]), type number )
in TotalAmountAdded
Add a custom column with date logic (based on your sample sumif formula), filter the new column to get the relevant rows, then group by product code and sum Sales. Assuming source data is in Table1 with three columns (Sales,Product Code, Date) the code would be
let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Sales", Int64.Type}, {"Product Code", type text}, {"Date", type date}}),
#"Added Custom" = Table.AddColumn(#"Changed Type", "AddMe", each if [Date]<=DateTime.Date(DateTime.LocalNow()) and [Date]>=Date.AddDays(DateTime.Date(DateTime.LocalNow()),-28) then 1 else 0),
#"Filtered Rows" = Table.SelectRows(#"Added Custom", each ([AddMe] = 1)),
#"Grouped Rows" = Table.Group(#"Filtered Rows", {"Product Code"}, {{"ProductSales", each List.Sum([Sales]), type number}})
in #"Grouped Rows"

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