Forum Discussion
Count in two related tables
If you drag a Matrix visual to your canvas, with ID in Rows, and the measure totalTAreas in Values, I think it will give you the result you need.
Or you can add a column as described by Baskar, though I can't see from your requirements why it must be a column.
Note that columns can't be used is some situations (e.g. axis on a scatter plot), measures are generally more efficient, but measures can't be used as slicers.
That works so fine man !!
I didn't know that measures could be used to get values by row I thougth that they were only to get one value.
I have just seen the video and now I understand how a measure works. And yes it is more efficient than calculated columns by far.
I found a bad way to do it duplicating the table and grouping by id but that is so unefficient.
A lot of thanks to both and sorry cause the answer was here from the first message but i didn't know how to apply it. Sometimes it is better no to run a lot and take time to see the things clare. :smileyhappy:
I'm glad we helped. I too didn't understand the simple power of measures and a good data model until I'd used them a few times on my own datasets.