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Frequent Visitor

## DAX to Union two sums

Hello,

I think that I may be overthinking how to do this in DAX, but any help would be musch appreicated.  What I am looking to do is combine two diffrent set of data into one table in dax.

For example, here would be the data sources that I am looking at:

```           Table A
-----------------------------
group | sub-group | qty
-----------------------------
a  |    1      |  1
a  |    1      |  2
a  |    2      |  1
a  |    2      |  2

Table B
-----------------------------
group | sub-group | qty
-----------------------------
b  |    2      |  4
b  |    2      |  2
b  |    3      |  2
b  |    3      |  2```

So I have these two distinct data sources/tables.  What I need to do is union them togeather and sum the columns.

What I need my final resuly to be is something like this:

```          Results
-----------------------------
group | sub-group | qty
-----------------------------
a  |    1      |  3
a  |    3      |  4
b  |    2      |  9
```

I have tried creating some measures using SUM and FILTER, but I cant seem to find the correct way to get to this result.

Thanks for any and all help in advance!

1 ACCEPTED SOLUTION

Accepted Solutions
Power BI Team

## Re: DAX to Union two sums

Try some calculated tables!

In Data View, choose New Table then

UnionedTable = UNION(TableA, TableB)

Then use it to create another calculated table

SummaryTable = SUMMARIZE(UnionedTable, [group], [sub-group], "Qty", SUM(UnionedTable[qty]))

Hope this helps!

4 REPLIES 4
Super User

## Re: DAX to Union two sums

Use an Append query step. Create Table A query, create Table B query. Edit Table A query, add Append step and append Table B. Make sure to transform your sub-group column to Text or in your table choose to "Do not summarize". Use a Table or Matrix visualization and turn off row totals in painter for Matrix.

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Highlighted
Frequent Visitor

## Re: DAX to Union two sums

Thanks for the reply, but unfortuantly I am modifing the data after I bring it into the data model, so I would not be able to use the append data function.

Super User

## Re: DAX to Union two sums

I'm not clear on this, why can't you make the same modifications to the combined table? Alternatively, are you able to make the same modifications using M code versus DAX? I'd have to know more about the modifications being made, etc. to understand this I think.

### I have book! Learn Power BI from Packt

Proud to be a Datanaut!

Power BI Team

## Re: DAX to Union two sums

Try some calculated tables!

In Data View, choose New Table then

UnionedTable = UNION(TableA, TableB)

Then use it to create another calculated table

SummaryTable = SUMMARIZE(UnionedTable, [group], [sub-group], "Qty", SUM(UnionedTable[qty]))

Hope this helps!

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