Resource execution time..

Question

Hi gurus,
version:11.0.6.0
platform:windows 7
we daily execute around 170-180 sql queries to fetch data from different-different servers and also use spool function in each query to save the output onto csv file
but it take a lot time while execution .
example:-
spool FR-FM-020_MONITOR_HIGH_SERVICE_CLASS_CHANGE_CDR_[Day-1]-[Month-1]-[Year-1].csv;
select distinct served_msisdn,event_date,prev_rate_plan_key,rate_plan_key,transaction_datetime,transaction_amt,transaction_src_type_key,flexi_col_2,flexi_col_3 from orv5_etl.fct_in_transaction PARTITION(date_[Year-1][Month-1][Day-1]) where prev_rate_plan_key!=Rate_plan_key AND FLEXI_COL_3!='ACSUSER';
spool off;
spool PA-TR-020_AvsB_Outgoing_trunk_Local_Carry_International_[Day-2]-[Month-2]-[Year-2].csv;
SELECT /*+ parallel( r,8) */* FROM orv5_etl.fct_switch partition(date_[Year-2][Month-2][Day-2]) r WHERE flexi_col_1='Transit' AND out_tg_id_key IN
(SELECT outgoing_tg FROM tglist WHERE nature='Local')
AND SUBSTR (original_b_num, -9, 2) NOT IN (SELECT series FROM tglist WHERE nature='Local') and length(original_b_num)>=9;
spool off;
spool NE-FO-013_FILE_SEQUENCE_CHECK_MSC_MSS_RAMS_[Day-2]-[Month-2]-[Year-2].csv;
select file_name, COUNT(1) from orv5_etl.fct_switch PARTITION(DATE_[Year-2][Month-2][Day-2])
group by file_name;
spool off;
spool PR-PA-027_Review_activation_date_for_subscribers_on_SDP_[Day-2]-[Month-2]-[Year-2].csv;
SELECT SERVED_MSISDN,SERVED_IMSI,PROCESS_DATE_KEY,SUBS_BU_KEY,SRV_TYPE_KEY,SUBS_STATUS_KEY,FILE_NAME,RATE_PLAN_KEY,PREV_RATE_PLAN_KEY,SYS_ID_KEY,NE_ID_KEY,ACCOUNT_BAL,VALIDITY_DATE,FIRST_SEEN_DATE,LAST_SEEN_DATE,AGE_IN_NETWORK,DEACTIVATION_DATE,ACTIVATION_DATE,CUG_ID,FORFEITURE_DATE,POPULATION_DATE_TIME,FLEXI_COL_1,FLEXI_COL_2,PORT_ID_KEY
FROM ORV5_ETL.DIM_SUBS_IN PARTITION (DATE_[Year-2][Month-2][Day-2])
WHERE ACTIVATION_DATE IS NULL;
SPOOL OFF;
and as on (...170-180 sql queries)
what changes or method should i apply to execute my task fast.
any help would be complimentary..
regards
Edited by: abdul: on Jan 28, 2013 3:32 PM

Answer 1

Hi Abdul,
You need check below ..
1. Get AWR report & find top time consuming query
@?/rdbms/admin/awrrpt.sql
2. Explain plan of the top queries
3. Check the file system utilization or number of files present in that FS where you are storing csv
4. Check wait event of the session which is running those reports
col sql_text for a80
set pages 200
set line 900
col PROGRAM for a20
col MACHINE for a20
col CPU 9999999999
alter session set nls_date_format='dd-mon-yyyy hh24:mi:ss';
col event for a40
select *
  from (select /*+ rule */
         sa.sql_id,
         sa.CPU_TIME "CPU",
         s.sid "SID",
         s.serial# "SERIAL",
         s.program "PROGRAM",
         s.machine "MACHINE",
         sa.SQL_TEXT "SQL_TEXT",
         vp.spid,
         sw.event,
         s.logon_time,
         s.last_call_et / 60,
         s.username,
         s.status
          from v$sqlarea sa, v$session s, v$process vp, v$session_wait sw
         where sa.address = s.sql_address
           and sw.sid = s.sid
           and s.paddr = vp.addr
         order by CPU_TIME desc)
where rownum < 10;Thanks,
Ajay More
http://www.moreajays.com