Dcount function in power query

Question

Hi,
I have a query generated in power query
that gives me the following results:
ID          VALUES             
1              A001
2              A002
3              A001
4              B001
5              B002
6              B001
I need to insert a new calculated field
in the query I of the order of
repetition of each record. The result we
want to achieve is the following:
ID          VALUES       RESULT 
1              A001             1
2              A002             1
3              A001             2
4              B001             1
5              B002             1
6              B001             2
Using access get it using the following
calculated field in a query: " DCont("*";"tabla1";"Valor='" & [valor] & "'and Id_prueba<=" & [id_prueba])".
How I can do the same with
power query?
Thank you very much in advance and Merry Christmas
to all,
José Luis

Answer 1

Hi,
You can can use Table.Group and  Table.AddIndexColumn function to solve this.
let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    Group = Table.Group(Source, {"VALUES"}, {{"Group", each Table.AddIndexColumn( Table.Sort(_, {"ID", 0 } ) , "RESULT" ,1,1 ), type table}}),
    Final = Table.Sort( Table.Combine( Group[Group] ) , { "ID", 0 } )
in
    Final
Regards,
Hi,
First thank you very much
for your answer. Could you please tell me
where I have to enter the code
you indicate in your response ?, the
query´s code where I need to create the
RESULT field is as follows:
let
    Origen = Xml.Tables(Web.Contents("http://localhost:xxxx/planning_units/1001/schedule/2014-09-29.xml?end_date=2015-12-31&level=schedule&auth=xxxxxxxxxxxxxxxx=")),
    #"Tipo cambiado" = Table.TransformColumnTypes(Origen,{{"Attribute:type", type text}}),
    #"Expandir schedule" = Table.ExpandTableColumn(#"Tipo cambiado", "schedule", {"activity-id", "booking-date", "employee-id"}, {"schedule.activity-id",
"schedule.booking-date", "schedule.employee-id"}),
    #"Expandir schedule.activity-id" = Table.ExpandTableColumn(#"Expandir schedule", "schedule.activity-id", {"Element:Text"}, {"schedule.activity-id.Element:Text"}),
    #"Expandir schedule.booking-date" = Table.ExpandTableColumn(#"Expandir schedule.activity-id", "schedule.booking-date", {"Element:Text"}, {"schedule.booking-date.Element:Text"}),
    #"Expandir schedule.employee-id" = Table.ExpandTableColumn(#"Expandir schedule.booking-date", "schedule.employee-id", {"Element:Text"}, {"schedule.employee-id.Element:Text"}),
    #"Índice agregado" = Table.AddIndexColumn(#"Expandir schedule.employee-id", "Índice", 1, 1),
    #"Columnas reordenadas" = Table.ReorderColumns(#"Índice agregado",{"Índice", "schedule.activity-id.Element:Text", "schedule.booking-date.Element:Text",
"schedule.employee-id.Element:Text", "Attribute:type"}),
    #"Columnas con nombre cambiado" = Table.RenameColumns(#"Columnas reordenadas",{{"Índice", "ID"}}),
    #"Columnas quitadas" = Table.RemoveColumns(#"Columnas con nombre cambiado",{"Attribute:type"}),
    #"Columnas reordenadas1" = Table.ReorderColumns(#"Columnas quitadas",{"ID", "schedule.booking-date.Element:Text", "schedule.activity-id.Element:Text",
"schedule.employee-id.Element:Text"}),
    #"Personalizada agregada" = Table.AddColumn(#"Columnas reordenadas1", "VALUE", each [#"schedule.booking-date.Element:Text"]&[#"schedule.activity-id.Element:Text"]&[#"schedule.employee-id.Element:Text"])
in
    #"Personalizada agregada
Thank you very much in advance,
José Luis