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arpost's avatar
arpost
Icon for Post Prodigy rankPost Prodigy
2 years ago
Solved

How do you delete specific rows from a Lakehouse table?

Greetings, all. I have some files loaded into a Lakehouse that I've also loaded into a Lakehouse table. I want to delete some of the rows in the Lakehouse table, but I can't seem to find a way to do ...
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  • Anonymous's avatar
    Anonymous
    2 years ago

    Hi arpost ,
    Thanks for using Fabric Community.

    It is possible to delete rows in a Lakehouse table using Spark-SQL in notebooks. I have created a repro of the scenario. I have attached the screenshots for your reference.
    Trying to delete the row which has value of 46134



    Query succeeded


    After deletion of the row:


    You can refer this link for more information: Link1 
    Hope this helps. Do let us know if you have any further issues. Glad to help.

TimoRiikonen's avatar
TimoRiikonen
Icon for Advocate V rankAdvocate V
2 years ago

It doesn't work in a programmatic manner.

If you have pre-defined solution, then you can make the SQL command.
But if you for example create a table of keys and try to delete those rows, that is not possible atm.

 

Couple of options:
- Delete everything and recreate all of it without the lines you wanted to delete.

- Use Power Query filtering in dataflow and make the dataflow to overwrite the data.