If a stage is used, it is typically the default bucket used on S3 for storage.
Tip: You can specify a separate database to use for your stage.
NOTE: For read-only connections to Snowflake, you must specify a Database for Stage. The connecting user must have write access to this database.
If a stage is not specified, a temporary stage is created using the current user's AWS credentials.
NOTE: Without a defined stage, you must have write permissions to the database from which you import. This database is used to create the temporary stage.