Duplicate Rows & Add Dates

Hi Anonymous ,

Please try to create a new table using DAX:

New Table = 
var _date=FILTER(CALENDAR(DATE(YEAR(TODAY()),1,1),DATE(YEAR(TODAY()),12,31)),DAY([Date])=1)
return CROSSJOIN('Table',_date)

Or 

New Table2 = 
var _date=SELECTCOLUMNS( GENERATESERIES(1,12,1),"Date",CONVERT( YEAR(TODAY())&"-"&[Value]&"-1",DATETIME))
return CROSSJOIN('Table',_date)

Output:

Best Regards,
Eyelyn Qin
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi,

This M code works

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WcizOTFTSUQrJyMxLNwQyDA0MDJRidaKV3IoS85JTYVJGQIYpTCo0GCZsDGQYgYVjAQ==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Region = _t, Thing = _t, Amount = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Region", type text}, {"Thing", type text}, {"Amount", Int64.Type}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each {1..12}),
    #"Expanded Custom" = Table.ExpandListColumn(#"Added Custom", "Custom"),
    #"Added Custom1" = Table.AddColumn(#"Expanded Custom", "Date", each "1/"&Number.ToText([Custom])&"/2022"),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Custom1",{{"Date", type date}}),
    #"Removed Columns" = Table.RemoveColumns(#"Changed Type1",{"Custom"})
in
    #"Removed Columns"

Hope this helps.