Can it improve performance when I query specified partition table using parallel,thanks in advance : SELECT /*+ PARALLEL(A,5)*/
 A.USER_ID, A.RES_TYPE, A.RES_ID, A.LIMIT_TAG, A.FEEPOLICY_INS_ID, A.FEEPOLICY_ID, TO_NUMBER(TO_CHAR(A.START_DATE, 'YYYYMMDDHH24MISS')) AS START_DATE, TO_NUMBER(TO_CHAR(A.END_DATE, 'YYYYMMDDHH24MISS')) AS END_DATE
FROM   TF_B_USER_FREECDR_HASH PARTITION(PAR_TF_B_USER_FREECDR_0) A
ORDER  BY A.USER_ID