How to add new rows based on input table?

Question

Hello,&nbsp;I have a starting table as input. It has 3 colomuns. Please see below. I would like to get a new table that will have more rows based on original table. See table below,&nbsp;Each Date# has every Activity# and every Source#. In this example, there are 4 dates, 2 activities, 2 sources. Therefore the final table row count is 4*2*2 = 16.&nbsp;Can this be done in DAX?&nbsp;StartDateActivityNameSourceDate1Activity 1Source1Date2Activity 2Source2Date3&nbsp;&nbsp;Date4&nbsp;&nbsp;&nbsp;The final table result should be:&nbsp;StartDateActivityNameSourceDate1Activity 1Source1Date1Activity 2Source1Date1Activity 1Source2Date1Activity 2Source2Date2Activity 1Source1Date2Activity 2Source1Date2Activity 1Source2Date2Activity 2Source2Date3Activity 1Source1Date3Activity 2Source1Date3Activity 1Source2Date3Activity 2Source2Date4Activity 1Source1Date4Activity 2Source1Date4Activity 1Source2Date4Activity 2Source2

vijay_a_verma · Accepted Answer

See the working here - Open a blank query - Home - Advanced Editor - Remove everything from there and paste the below code to test (later on when you use the query on your dataset, you will have to change the source appropriately. If you have columns other than these, then delete Changed type step and do a Changed type for complete table from UI again)let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMtY30TcyVNJRckwuySzLLKlUAHGC80uLklMNlWJ1opVM9Q31jYyQVRjBVRiBVZjpGxkDEVAULmEMljDXNzTSNzKBSCjFxgIA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [StartDate = _t, ActivityName = _t, Source = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"StartDate", type date}, {"ActivityName", type text}, {"Source", type text}}),
    #"Replaced Value" = Table.ReplaceValue(#"Changed Type","",null,Replacer.ReplaceValue,{"StartDate", "ActivityName", "Source"}),
    StartDateList = List.Buffer(List.RemoveNulls(Table.Column(#"Replaced Value","StartDate"))),
    ActivityNameList = List.Buffer(List.RemoveNulls(Table.Column(#"Replaced Value","ActivityName"))),
    SourceList = List.Buffer(List.RemoveNulls(Table.Column(#"Replaced Value","Source"))),
    StartDateListCount = List.Count(StartDateList),
    ActivityNameListCount = List.Count(ActivityNameList),
    SourceListCount = List.Count(SourceList),
    ElementsCount = StartDateListCount*ActivityNameListCount*SourceListCount,
    StartDateListRepeatCount = ElementsCount/StartDateListCount,
    GenStartDateList = List.Combine(List.Transform(StartDateList,(x)=&gt;List.Repeat({x},StartDateListRepeatCount))),
    SourceListRepeatCount = ElementsCount/SourceListCount,
    GenSourceListTemp = List.Combine(List.Transform(SourceList,(x)=&gt;List.Repeat({x},ActivityNameListCount))),
    GenSourceList = List.Combine(List.Repeat({GenSourceListTemp},ElementsCount/List.Count(GenSourceListTemp))),
    ActivityNameListRepeatCount = ElementsCount/ActivityNameListCount,
    GenActivityNameListTemp = List.Combine(List.Repeat({ActivityNameList},SourceListCount)),
    GenActivityNameList = List.Combine(List.Repeat({GenActivityNameListTemp},ElementsCount/List.Count(GenActivityNameListTemp))),
    Result = Table.FromColumns({GenStartDateList} &amp; {GenActivityNameList} &amp; {GenSourceList},Table.ColumnNames(Source))
in
    Result&nbsp;

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How to add new rows based on input table?

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StartDate	ActivityName	Source
Date1	Activity 1	Source1
Date2	Activity 2	Source2
Date3
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