SQL query tune

Question

Hi,
I have a query which is used in one of ur reports which tries to access 11 tables using oracle reports application. when users are trying to access thsi report its taking aroung 4 min. to compete the report, in a day we need this report to run on more than for nearly 70 times(70 reports in a day).
we provide the registration number, based on this number it generates the details of the owner, address, registration details, permits etc
we have more than 1gb of sga in which shared pool has nearly 750mb.
Select           
     pt.ppr_pert_no PERT_NO,
     gm.GOF_OFF_NM TRAN_A,
     (ROW_FST_NAME || ' ' || ROW_MID_NAME || ' ' ||
ROW_LST_NAME)          NAME,
     ROW_FH_NAME          G_NAME,
     rad_addr_ln1 addr1,
     rad_addr_ln2 addr2,
     rad_addr_ln3 addr3,
     RAD_CITY city,
     tm.tsn_state_nm state,
     nvl( fn_get_rte_nm(prt_off_cd, prt_route) , '-' )
ROUTE,
     rt.RVD_REGN_NO     re_no,
     rt.RVD_MKR_NAME     make,
     rt.RVD_MKR_CLAS      model,
     rt.RVD_FUEL          petrol,
     rt.RVD_CHAS_NO chasis,
     rt.RVD_ENG_NO engine,
     pd.ppd_oper_dt dt,
pd.ppd_fr_mt_no          FARE_MNO,
     pd.ppd_fr_mt_mk          FARE_MK,
     ( nvl(rt.RVD_STNG_CAP,0) || '+' ||
nvl(rt.RVD_DC_CAP, 0))          S_CAPACITY,
     pt.ppr_exp_dt               EXPIRY_DT,
     pd.ppd_fare_rt               RATE_FR,
     pd.ppd_oper_flg
OPER_TYP,
     pt.ppr_pert_typ PERT_TYP
FROM
     gm_off_dtl gm,
     pt_permits pt,
     pt_per_dtls     pd,
     pt_per_route pr,
     pm_route     pm,
     rt_breg rb,
     rt_veh_dtl      rt,
     rt_owner     po,
     rt_address     pa,
     tm_state_nm tm
WHERE     GOF_OFF_CD = (select gpr_value from gm_prm_chr
where gpr_type = 'G_OF_CODE' )
AND     pt.ppr_off_cd      =      GOF_OFF_CD
and     pt.ppr_pert_no      =      :per_no
and      pt.ppr_pert_st in      ('PDG', 'VAL')
and pt.ppr_pert_typ in
('CCP','DP','BSP','TPCC','TCP')
and      pd.ppd_off_cd     =     pt.ppr_off_cd     
and      pd.ppd_pert_no      =      pt.ppr_pert_no
and      pd.ppd_pd_st      =      'N'
and      rt.RVD_REGN_NO     =     pd.ppd_regn_no      
and      pr.pru_off_cd(+) =      pd.ppd_off_cd
and      pr.pru_pert_dtl(+) =      pd.ppd_pert_dtl
and      pm.prt_route (+) =      pr.pru_route
and      rb.rbr_regn_no = rt.rvd_regn_no
and      rb.rbr_active = 'A'
and      ROW_OFF_CD      =      pd.PPD_OFF_CD
AND     po.ROW_OWNER_ID     =      pd.ppd_owner
and      RAD_OFF_CD      =      ROW_OFF_CD
and      pa.rad_addr_id      =     po.row_addr_id
and      (tm.tsn_state_nm = pa.rad_state or
tm.tsn_state_cd = pa.RAD_STATE)
group by
pt.ppr_pert_no ,
gm.GOF_OFF_NM ,
(ROW_FST_NAME || ' ' || ROW_MID_NAME || ' ' ||
ROW_LST_NAME),
ROW_FH_NAME     ,
RAD_ADDR_LN1 ,
RAD_ADDR_LN2 ,
RAD_ADDR_LN3 ,
RAD_CITY ,
tm.tsn_state_nm ,
nvl( fn_get_rte_nm(prt_off_cd, prt_route) , '-' ) ,
rt.RVD_REGN_NO     ,
rt.RVD_MKR_NAME     ,
rt.RVD_MKR_CLAS      ,
rt.RVD_FUEL          ,
rt.RVD_CHAS_NO ,
rt.RVD_ENG_NO ,
pd.ppd_fr_mt_no          ,
pd.ppd_fr_mt_mk          ,
( nvl(rt.RVD_STNG_CAP,0) || '+' ||
nvl(rt.RVD_DC_CAP, 0))     ,
pt.ppr_exp_dt          ,
pd.ppd_fare_rt     ,
pd.ppd_oper_dt,
pd.ppd_oper_flg     ,
pt.ppr_pert_typ
how to tune or any other ways to do it.

Answer 1

here are the details
rt_owner,rt_address,tm_state_nm has around 1,50,234 records
pt_per_route,pt_per_dtls,pt_permits,rt_berg,pm_route has around 2lac records
reprot will be based on registration number and will display all the details like his name of the owner,father name,address,vehicle type,class,manufacture,engine no,chassisno,permit obtain date,permit expire date, permit fare etc.pertain to that registration and if permit is obtain more than twice the details will also be shown.
oracle ver.8.1.7/windows2000 server
optimizer mode is rule based.