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karun_r's avatar
karun_r
Microsoft Employee
7 years ago

Incremental Refresh without Last Modified Date

I have a dataset that is kind of huge, the file is around 4 GB at this point and there is nothing I can do about it. 

 

This model has a table that is pulling data for about like two fiscal quarters at customer level for each day. And the datasource for this table doesn't have a LastModifiedDate column indicating if a row has been updated. And I don't have the guarantee that the data in the original source for a random day would not be updated today/tomorrow etc. 

 

So I don't have a way to figure out which row has been modified. So I suppose Incremental Refresh is out of the question. Is there any clever way to reduce the refresh times for this dataset? It takes around 10-15 mins to refresh the table each time. And how common is having a PBI report with size of around 2+ GB ? Should I be looking for some alternative approach like building a tabular model on a different server and just pulling the measures into the report ? Or is it okay to have this big dataset on the .pbix file ?

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