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caninetiger's avatar
caninetiger
Frequent Visitor
2 years ago
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Import all CSV files from folder with different schemas

Hi,   I have a folder with 300+ csv files. It's a mass download that I receive on a regular basis mirroring our EMR's database so each file is it's own table with a different schema. I'd like to im...
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  • Anonymous's avatar
    Anonymous
    2 years ago

    Hi caninetiger 

     

    Currently Power Query doesn't support to create more queries(tables) automatically or dynamically from a table. So this is not possible at present. I read your discussion in another thread about this and you may decide to use a Python script to write them into an Excel Workbook or a database. This seems the best alternative currently. 

     

    But I'd like to remind that if these files have too many rows, it may hit the data size limit as you will have 300+ tables in a semantic model. You may refer to Power BI limit for number of tables - Microsoft Fabric Community There is no document to point out that the limit for number of tables in Power BI but there is limit to data size.

     

    Best Regards,
    Jing

     

caninetiger's avatar
caninetiger
Frequent Visitor
2 years ago

300+ tables, one for each file. It's a mass export from our EHR. They've basically mirrored a lot of the underlying data model with tables for patients, tables for employees, tables for encounters etc. The correct way to go about this is to import all of it in and properly build out the relationships between tables in Power BI. That way I can easily create graphs and reports.

 

Maybe I'm wrong but I believe that's the best way to go about it. I just can't figure out how to import them all at the same time.