Evaluate the following statements: CREATE TABLE purchase_orders (po_id NUMBER(4),
po_date TIMESTAMP, supplier_id NUMBER(6), po_total NUMBER(8,2), CONSTRAINT
order_pk PRIMARY KEY(po_id)) PARTITION BY RANGE(po_date) (PARTITION Q1
VALUES LESS THAN (TO_DATE(?1-apr-2007?d-mon-yyyy?), PARTITION Q2 VALUES
LESS THAN (TO_DATE(?1-jul-2007?d-mon-yyyy?), PARTITION Q3 VALUES LESS THAN
(TO_DATE(?1-oct -2007?d-mon-yyyy?), PARTITION Q4 VALUES LESS THAN
(TO_DATE(?1-jan-2008?d-mon-yyyy?)); CREATE TABLE purchase_order_items (po_id
NUMBER(4) NOT NULL, product_id NUMBER(6) NOT NULL, unit_price NUMBER(8,2),
quantity NUMBER(8), CONSTRAINT po_items_fk FOREIGN KEY (po_id) REFERENCES
purchase_orders(po_id)) PARTITION BY REFERENCE(po_items_fk); What are the two
consequences of the above statements? (Choose two.)
A.
Partitions of PURCHASE_ORDER_ITEMS have system-generated names.
B.
Partition maintenance operations performed on the PURCHASE_ORDER_ITEMS table
are automatically reflected in the PURCHASE_ORDERS table.
C.
The PURCHASE_ORDER_ITEMS table inherits the partitioning key from the parent table
by automatically duplicating the key columns.
D.
Both PURCHASE_ORDERS and PURCHASE_ORDER_ITEMS tables are created with
four partitions each.
E.
Partitions of the PURCHASE_ORDER_ITEMS table exist in the same tablespaces as the
partitions of the PURCHASE_ORDERS table.