Migration of Document/Folder from on premise to cloud environment

Hi Experts 

I need to migrate data from On premise environment to Cloud environment.

For every record there is a folder creation whose id is stored in DB table , Also these folder , later, filled with documents that uploaded by end users.

1) Is there a way that I can migrate the same folders with same IDs in DB, If not then what is the best way to do so?

2) Is there a way that I can migrate the same documents with same IDs in DB , If not then what is the best way to do so ?

I'm new to appian , so please provide a step by step solution in easy language.

Thank you in advance