Power BI Count/Sum Based on Multiple Columns

Question

I'm trying to count and sum based on multiple columns. When I tried the "group by" function in transform data, it gives me a timeout error.

Below is an illustrative example of what I'm trying to do. In the real dataset, the number of columns is 30+ and the number of possible entries in each column is also large, resulting in many unique combinations.

I'm not sure if there are other functionalities in Power BI that can achieve this, please send help

Have this:

Want this:

Answer 1

Im going to go ahead and guess that perhaps you want to sum all your columns without knowing how many of them you have, and this code can work on any number of columns, grouping the first two

let Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Unpivoted Other Columns" = Table.UnpivotOtherColumns(Source, {"Column1", "Column2"}, "Attribute", "Value"),
#"Grouped Rows" = Table.Group(#"Unpivoted Other Columns", {"Column1", "Column2", "Attribute"}, {{"Count", each Table.RowCount(_), Int64.Type}, {"SUM", each List.Sum([Value]), type number}}),
#"Pivoted Column" = Table.Pivot(#"Grouped Rows", List.Distinct(#"Grouped Rows"[Attribute]), "Attribute", "SUM", List.Sum)
in   #"Pivoted Column"

Answer 2

In Power Query, on the Tranform ribbon, click "Group By" and enter these settings.