Scenario:
Suppose we have the sample data as follows:
Suppose we have the sample data as follows:
Now from above data, based on the [Freq] column, we have to repeat the rows and add Index.
Eg:
If [Freq] =3 then we have to repeat that row for 3 times and then need to add a Index column with values as 1,2,3.Eg:
We can achieve this Scenario, using the following M-Query:
let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("Zc3bCQAhDETRXvItmInxVYvYfxuyGwNL9m/gwNy1CFKUEgFZszD42bTTC9WgOohDM2gOxaEbdAd1GAbj15gGM14pG4BjXXEFsaJyRT6ZfQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ProdID = _t, DateKey = _t, Freq = _t]),
ChangeType =
Table.TransformColumnTypes(Source,{{"ProdID", Int64.Type}, {"DateKey", type date}, {"Freq", Int64.Type}}),
RepeatRowsIndex =
Table.AddColumn(ChangeType, "tempField", each
Table.AddIndexColumn(
Table.Repeat(Table.FromRecords({[temp=null]}),[Freq]),"Index",1,1, Int16.Type)),
ExpandRows = Table.ExpandTableColumn(RepeatRowsIndex, "tempField", {"Index"}, {"Index"})
in
ExpandRows
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