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Evaluatethefollowingstatements:
CREATETABLEpurchase_orders(po_idNUMBER(4),
po_dateTIMESTAMP,supplier_idNUMBER(6),po_totalNUMBER(8,2),
CONSTRAINTorder_pkPRIMARYKEY(po_id))PARTITIONBYRANGE(po_date)
(PARTITIONQ1VALUESLESSTHAN(TO_DATE(?1-apr-2007?d-mon-yyyy?),PARTITIONQ2VALUESLESSTHAN
(TO_DATE(?1-jul-2007?d-mon-yyyy?),
PARTITIONQ3VALUESLESSTHAN(TO_DATE(?1-oct-2007?d-mon-yyyy?),PARTITIONQ4VALUESLESSTHAN(TO_DATE(?1-jan-2008?d-mon-yyyy?));
CREATETABLEpurchase_order_items(po_idNUMBER(4)NOTNULL,product_idNUMBER(6)NOTNULL,unit_priceNUMBER(8,2),quantityNUMBER(8),CONSTRAINTpo_items_fkFOREIGNKEY
(po_id)REFERENCESpurchase_orders(po_id))PARTITIONBYREFERENCE(po_items_fk);
Whatarethetwoconsequencesoftheabovestatements?()
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