A、Partitions of PURCHASE_ORDER_ITEMS have system-generated names.

B、Both PURCHASE_ORDERS and PURCHASE_ORDER_ITEMS tables are created with four partitions each.

C、Partitions of the PURCHASE_ORDER_ITEMS table exist in the same tablespaces as the partitions of the PURCHASE_ORDERS table.

D、The PURCHASE_ORDER_ITEMS table inherits the partitioning key from the parent table by automatically duplicating the key columns.

E、Partition maintenance operations performed on the PURCHASE_ORDER_ITEMS table are automatically reflected in the PURCHASE_ORDERS table.