database tables for Special GL - down payment

As per my knowledge

All vendor open items or with BSAK database table

All vendor cleared items or with BSIK database table

All customer open items or with BSAD database table

All customer cleared items or with BSID database table

My question is in which table following transaction will be saved (Special GL transactions)

1. Down payment request to customer / vendor

2. Down payment made to vendor and received from customer

3. Clearing down payment in both cases

I request you to give me database table names in above cases

thanking you