To me it sounds like you are using Direct Query and I'm pretty sure you can't create calculated columns/measures over Direct Query sources - but I didn't think ODBC was a DQ datasource. I figured it would import the data and once in you can enhance your model.
Are you able to create any calculated measures or columns?
It seems you connect to ODBC data source, which calculate function do you want to use to create a calculated column? If you create a calculated column in report view, you can use DAX functions. While in Query Editor, you need to use Power Query functions.
It would be better if you can share sample data and expected calculated column values for our analysis.
Best Regards, Qiuyun Yu
Community Support Team _ Qiuyun Yu If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.