Logic to run fast Query on Date parameters

select /*+ parallel(aa, 4) parallel(xx, 4) */ *

from XXDM_MEDNEXT_CLAIM_INV_V MDX ,

(select :P_FROM_DATE fromdate,:P_TO_DATE todate from dual )

xx

where  MDX.INVOICE_DATE >=xx.fromdate

and MDX.INVOICE_DATE <= xx.todate