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Post Partisan
Post Partisan

comparing different versoins of a database table



I am dealing with a database table that can change daily (records can be updated, as well as added and deleted). My users will want to be able to do comparisons today versus yesterday, today versus last week and today versus last month.


I guess I need to import the data each day and add a column with the datestamp of the import. But I don't see how to do that automatically. Please could you tell me how to go about automating that process?





Super User III
Super User III

Re: comparing different versoins of a database table

@CloudMonkey My personal opinion would be to build the process in your database. Snapshot the table as it is, then create a process that will add new rows, and update existing rows depending on if the data was deleted or updated.

Status column, change date, etc can be the additional columns. Then Power BI just always looks at the table, and you have a process that is tracking the changes within it. I'm not aware of any way to do the diff in power bi.

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Super User IV
Super User IV

Re: comparing different versoins of a database table

Agree with @Seth_C_Bauer. Even if you could automate the process in PBI, then PBI would not be able to store this data in the pbix accordingly.


If (for some reason) you cannot adjust in your database, you could create the additional fields in PBI and use the R-extension to create a csv-export. (Using Powershell and task automation should give the ability to automate this process, but it's pretty hacky)

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