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I have several tables each with [Index ID] as a collumn. I also have one table 'Index' which is just a list of valid IDs. I want to filter all my other tables to include only the IDs from the 'Index' table. All the index values are integars but there are lots of them and they change periodically so its not pratical to enter the filter details manually.
I know there are measures that could do this within a visual, but I really want to do it within power query rather than having to make loads of measures. If the filtered out values could simply not be loaded into the model at all that would be great.
I also know this could be done by merging the 'Index' table into all the others and then filtering that way, but I'd prefer to keep them unmerged if possible.
Is there an effecient way to do this?
Thanks.
I'd think the best way to filter all reports with the index table would be to set relationships between the tables in power bi then apply a filter to all pages of your report to include all of the index IDs. Would this not work for you?
I note also that you've mentioned you don't want to merge as it will slow things down. I don't think merging will show it down very much. You're not going to be loading any of the index table data onto the other tables - you'll just be merging with it to filter the other tables, after which you can delete the extra column. You could give it a go and see how much it slows things down - I doubt it'll be significant.
I've always assume dit would slow things down, basically loading in the same data twice. Is this not the case?
Thank you.