Get Salesforce Database Schema Created in Appian Cloud Database

In order to create a precise schema in the Appian MySQL database, I would either script the DDL and run it manually, or use the WYSIWYG controls in the MySQL console to create and configure the tables.
To my knowledge there's no simple or easy way to just command Appian to inspect a foreign schema and recreate it locally including table attributes like foreign key relationships.

Yes we have to Script the schema and Import it into the appian cloud database but salesforce not provide the Script file of schema.

One way i tried to connect the Salesforce to Online MySQL database through "Skyvia"(https://www.skyvia.com/), it creates the salesforce object schema into online MySQL database with relationship.

But i am unable to connect Appian cloud database with Skyvia, so i am looking for another way to do same task.