SAP PP - Important tables used in SAP PP

What are some important tables used in PP?

For Orders :

CUAFVD dialog structure for order headers and items

AFPO - Order item
AFFLD - Order Dialog table 

AFFL - Order sequences 

MOPER - Operation for production order
KBED - Capacity requirements

AFRU - Order completion confirmations
RESB - Reservation/Dependent Requirements
AFFHD - Structure of PRT's in orders
SOPER - Sub-operations

SAFRU Sub-operation confirmations
SKBED Capacity requirements for sub-operation

MDTB - MRP table .

For PI:
CAUFV - AFVC Operation within an order

AFFT - Order Process Instructions
AFFV - Order process instruction values