calculate the Size value from from Dimension table for the corresponding products in FactSales table

[MacJasem]

Hi Guys

Hope somebody can help me with this task.

I have two Tables, table A (FactTable) & table B (dimensionTable). Both of the has the ProductID Column, but i'm trying to get the corresponding Product Size values from table B into a new column in table A that matches the ProductID. I've tried to merge etc. and it didn't work.

The result i'm looking for is that in table A, for every product sale there's a column that shows the product size of that product.

Table A

ProductID	ProductUnitSales
1	2 x
2	5 x
3	10 x

Table B

ProductID	ProductSize
1	20 kg
2	30 kg
3	40 kg

Result i wish to see is:

Table A

ProductID	ProductUnitSales	SalesVolume
3	3 x	3 x 20 kg = 60 kg

How and what is the best way to tackle this task?

[v-cgao-msft · Accepted solution]

Hi @MacJasem ,

Are the data types of [ProductUnitSales], [ProductSize], [SalesVolume] numbers or text? If I understand correctly, do you want to get the summary value from table B corresponding to [ProductSize] and create a new column in table A by multiplying this value with [ProductUnitSales]?

If so, please try:

let
    Source = Table.NestedJoin(#"Table A", {"ProductID"}, #"Table B", {"ProductID"}, "Table B", JoinKind.LeftOuter),
    #"Expanded Table B" = Table.ExpandTableColumn(Source, "Table B", {"ProductSize"}, {"Table B.ProductSize"}),
    #"Added Custom" = Table.AddColumn(#"Expanded Table B", "SalesVolume", each [ProductUnitSales] * [Table B.ProductSize]),
    #"Grouped Rows" = Table.Group(#"Added Custom", {"ProductID", "ProductUnitSales"}, {{"SalesVolume", each List.Sum([SalesVolume]), type number}})
in
    #"Grouped Rows"

The PBIX file is attached for reference.

If I have misunderstood your needs or if the problem remains unresolved, please feel free to contact us.

Best Regards,
Gao
Community Support Team

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