Dimensions

[Anonymous]

Hello

I am seeing the possibility of generating a dimesion in my model with the combination of several fields, the dimesion would keep me with approximately 2 million rows.

Is this possible, is it optimal?

Would it be better to have different dimensions separately?

Having a single dimension I gain that as I will have a panel with several filters, as the user filters only information that hangs from the filter that has been made.

Thanks a lot

A greeting

[v-juanli-msft · Accepted solution]

Hi @Anonymous 

You could read articles below to know more about dimensions and when to use it.

https://radacad.com/basics-of-modeling-in-power-bi-what-is-a-dimension-table-and-why-say-no-to-a-single-big-table

https://docs.microsoft.com/en-us/power-bi/guidance/star-schema

Best Regards
Maggie
Community Support Team _ Maggie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[amitchandak]

@Anonymous , do already a unique key to separate out. Then in power query, you can do that easily . But you have populated a key , it will have a cost

refer : https://www.youtube.com/watch?v=Zlu99RUtMRY

[Greg_Deckler]

@Anonymous Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.