The error message "AnalysisException: Cannot redefine dataset 'sales_orders_raw'" is indicating that you're trying to create a table that already exists. In Databricks, once a Delta Live Table (DLT) is defined, it cannot be redefined or overwritten. This is to ensure the consistency and reliability of your data pipelines.

If you want to modify the table definition, you will need to delete the existing table first. However, be aware that this will also delete all the data in the table. If you want to keep the data, you should create a new table with a different name.

Here's how you can delete a DLT:

@dlt.delete_table
def sales_orders_raw():
  pass

After running this, you should be able to redefine your sales_orders_raw table.

Remember to be careful when deleting tables, especially in a production environment, as this action cannot be undone.