Data Base is very slow

Dear All,
Certain query on my database is very slow .
One of the query some times does not execute at all.this query involves a big table of about 5 million records.
Some Facts About my Database.
OS: SUN Solaris
DataBase: Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
RAM:32GB
Dedicated oracle server
Processors:16
DB Block Size:2048
Large pool:150994944
log_buffer:10485760
shared_pool_size:150994944
There are in total 21 production Database running on the same BOX.
Previously my buffer cache hit ratio was 27%.
So I recommended an increase in DB_CACHE_SIZE from 101MB to 300MB
and SGA_MAX_SIZE to 800MB from 600MB.
As a result ,The buffer cache hit ratio increased to 75%.
But still the queries run slow.
I even tried with Partitioning the Big Table Didn't help.
My question is ,is the system over loaded ?
or increasing the db_cache_size will help ?
Regards.

By itself the buffer hit cache ratio is a meaningless statistic. It can in fact be a misleading indicator since it does not actually reflect application performance.
Tune the query. Make sure it is running as well as it can.
Then look at overall machine resources: average and peak cpu, memory, and IO loads.
If spare resources exist then considering more resources to the more important databases on the system.
Document any performance changes that occur after each change. It is possible for the database performance problem being latching, that is, shared pool access and you might need space in the shared pool more than the buffers. It depends on the application and user load.
Why are you using a 2K database block size? I would think 4k or 8k would probably be better even for a true OLTP with almost all access by index.
To get help on the query you will need to post it, the explain plan, and information on available indexes, table row counts, and perhaps column statistics for the indexed columns and filter conditions.
HTH -- Mark D Powell --

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Query is as below: generating result in 48 second.
select cns.consultant,
sum(cns.nof_pat) noof_pat,
sum(cns.opd_amnt) opd_amnt,
sum(cns.discount_amnt) discount_amnt,
sum(cns.net_amnt) net_amnt,
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count(distinct rec.consultant) nof_pat,
-- rec.receipt_date, bysalim
pay_mode,
rec.patient_mrno,rec.patient,
service_name,rcpt_no,
company,rec.docno,
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sum(distinct rec.opd_amnt) opd_amnt,
sum(distinct dis.discount_amnt) discount_amnt,
(sum(distinct nvl(rec.opd_amnt,0))-sum(distinct nvl(dis.discount_amnt,0))/count(rec.consultant)) net_amnt,
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max(100-dr_per))/100),0) hosp_share,
count(distinct rec.consultant) net_dis
from
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bil_recept_no_a rcpt_no,
fnc_org_sname(bokm_panel_comp_id) company,
0 return_amnt,
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hms_pat_amnt amt,hms_adm_dr dr
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and pmst.bokm_pat_type in('PVT_OPD','CP_OPD')
and amt.bil_void_a = 'N'
and (pmst.bokm_user_dept_code != '039')
and BOOK.CREATED_ON between '01-OCT-2011' and '17-OCT-2012'
/* and (pat.pr_curr_cont_id = :P_CONT_ID or :P_CONT_ID = '000')
and (pat.pr_curr_prvnc_id = :P_PRVNC_ID or :P_PRVNC_ID = '00')
and (pat.pr_curr_city_id = :P_CITY_ID or :P_CITY_ID = '000')
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and (pat.pr_gender = :P_GENDER or :P_GENDER = 'A')
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and (decode(pmst.bokm_panel_comp_id,'1','PVT_IPD','CP_IPD') = :P_PAT_TYPE or :P_PAT_TYPE = 'ALL')
&LPARA_RCPT_DT */
) rec,
select -- bokm_doc_dt receipt_date, bysalim
pr_mrno patient_mrno,
bokm_doc_no docno,
nvl(bil_disc_amont_a,0) discount_amnt
from hms_pat_pers pat,hms_lab_pat_mst pmst,hms_opd_book book,
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where pat.pr_mrno = pmst.bokm_mrno
and pmst.bokm_mrno = book.rslt_mrno
and pmst.bokm_doc_no = book.pt_pat_doc_no
and pmst.bokm_mrno = amt.bil_mrnum_a
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and (pat.pr_curr_city_id = :P_CITY_ID or :P_CITY_ID = '000')
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and (pat.pr_marital_status = :P_MARITAL_STAT or :P_MARITAL_STAT = 'ALL')
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-- and BOOK.CREATED_ON between :P_RCPT_DTFR and :P_RCPT_DTTO
&LPARA_RCPT_DT */
) dis
where rec.patient_mrno = dis.patient_mrno (+)
and rec.docno = dis.docno (+)
--and patient = 'SHAHMEER'
group by rec.consultant, --rec.receipt_date, bysalim
rec.patient_mrno,rec.patient,
pay_mode,service_name,rec.docno,
rcpt_no,company
order by rcpt_no,rec.consultant
) cns
group by cns.consultant
order by 1
Edited by: user6431550 on Nov 15, 2012 3:10 AM

Dear Oracle Report experts,
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bil_recept_no_a rcpt_no,
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from hms_pat_pers pat,hms_lab_pat_mst pmst,hms_opd_book book,
hms_pat_amnt amt,hms_adm_dr dr
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and pmst.bokm_doc_no = book.pt_pat_doc_no
and pmst.bokm_mrno = amt.bil_mrnum_a
and pmst.bokm_doc_no = amt.bil_docno_a
and pmst.bokm_ref_conusltant_id = dr.dr_id
and amt.bil_rcp_type_a = '075002'
and pmst.bokm_pat_type in('PVT_OPD','CP_OPD')
and amt.bil_void_a = 'N'
and (pmst.bokm_user_dept_code != '039')
and BOOK.CREATED_ON between '01-OCT-2011' and '17-OCT-2012'
/* and (pat.pr_curr_cont_id = :P_CONT_ID or :P_CONT_ID = '000')
and (pat.pr_curr_prvnc_id = :P_PRVNC_ID or :P_PRVNC_ID = '00')
and (pat.pr_curr_city_id = :P_CITY_ID or :P_CITY_ID = '000')
and (pat.pr_curr_area = :P_AREA_ID or :P_AREA_ID = '000')
and (pat.pr_gender = :P_GENDER or :P_GENDER = 'A')
and (pat.pr_marital_status = :P_MARITAL_STAT or :P_MARITAL_STAT = 'ALL')
and (to_char(pmst.bokm_panel_comp_id) = :P_PANEL_COMP or :P_PANEL_COMP = 'ALL')
and (pmst.bokm_ref_conusltant_id = :P_CONS or :P_CONS = 'ALL')
and (decode(pmst.bokm_panel_comp_id,'1','PVT_IPD','CP_IPD') = :P_PAT_TYPE or :P_PAT_TYPE = 'ALL')
&LPARA_RCPT_DT */
) rec,
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pr_mrno patient_mrno,
bokm_doc_no docno,
nvl(bil_disc_amont_a,0) discount_amnt
from hms_pat_pers pat,hms_lab_pat_mst pmst,hms_opd_book book,
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and (pat.pr_curr_prvnc_id = :P_PRVNC_ID or :P_PRVNC_ID = '00')
and (pat.pr_curr_city_id = :P_CITY_ID or :P_CITY_ID = '000')
and (pat.pr_curr_area = :P_AREA_ID or :P_AREA_ID = '000')
and (pat.pr_gender = :P_GENDER or :P_GENDER = 'A')
and (pat.pr_marital_status = :P_MARITAL_STAT or :P_MARITAL_STAT = 'ALL')
and (to_char(pmst.bokm_panel_comp_id) = :P_PANEL_COMP or :P_PANEL_COMP = 'ALL')
and (pmst.bokm_ref_conusltant_id = :P_CONS or :P_CONS = 'ALL')
and (decode(pmst.bokm_panel_comp_id,'1','PVT_IPD','CP_IPD') = :P_PAT_TYPE or :P_PAT_TYPE = 'ALL')
and BOOK.CREATED_ON between :P_RCPT_DTFR and :P_RCPT_DTTO
-- and BOOK.CREATED_ON between :P_RCPT_DTFR and :P_RCPT_DTTO
&LPARA_RCPT_DT */
) dis
where rec.patient_mrno = dis.patient_mrno (+)
and rec.docno = dis.docno (+)
--and patient = 'SHAHMEER'
group by rec.consultant, --rec.receipt_date, bysalim
rec.patient_mrno,rec.patient,
pay_mode,service_name,rec.docno,
rcpt_no,company
order by rcpt_no,rec.consultant
) cns
group by cns.consultant
order by 1
Edited by: user6431550 on Nov 15, 2012 3:10 AM

My data base very slow

Dear all,
I have oracle rac db time to time its going very slow i can't recognize why this is happen how to check this . When the db load is going high then application also restarted .
An that time load average going very high ,only one node

user11876003 wrote:
Dear all,
I have oracle rac db time to time its going very slow i can't recognize why this is happen how to check this . When the db load is going high then application also restarted .
An that time load average going very high ,only one nodeIts actually nothing that you have told us to suggest something. What's the db version and o/s? Oracle database won't restart any application if being slow. That you should take up with the application development team of yours. For the database, depending on your db version and license, get either a Statspack or AWR of not longer than 30 minutes and post here .
Aman....

Data extraction very slow

Hello All,
I am trying to extract data from init 2lis_11_vaitm. But, extraction is very very slow. Total data in init set-up table are only 200k.
One thing I noticed is that we changed the extractor to increase a no. of fields to 225. All these fields were available in the BI content delivered communication extract structure of 2lis_11_vaitm in ECC.
Is it because of large nos of fields being extracted from ECC. 200k records are being extracted..It has been 38 hrs..and so far only 140K records are extracted.
Could you please suggest, how I can improve extraction performance.
We will be moving this to production. I am afraid that much larger nos of records in production will take for ever to extract.
Thanks
Shailini

Yes you are right, IO = input and output, and generally reference to the data loading capability
BASIS will help to monitor the data loading capability.
They will help to check the sizing document, prepared before system go launch, to check the "designed capability". BASIS guys need to do some test on data loading before system go launch.
And they will help to check the log to find some problems during data loading.
In bi 7 statistics you can find some information about that load. Discuss with the basis guys, they can help to analysis the problem without the BI statistics.
The system on hand do no load from 2lis_12_vcitm. But here is some information for your reference:
1. Production Server: 26K records, load to 2LIS_03_BF, takes 58s in all
2. Testing Server: 1.5 Million records, full load to 0FI_GL_10, Runtime 34m 12s

Slow response of my data base

Hi Dears.
I am working on a database project. i have 5 pc and i have made a pc as a database server machine. the network is on peer to peer. so you can say there is a pc as database server with 4 work station which are accessing database on the server machine. initially the database response was very good but after 4000 records the response of database is too too much slow ( you can say in hanging).
what i do to speed up the database response, i am bothering about slow response of data base.
on server machin (i.e. is a pc) there is
256 RAM, 2.4 GHz processor
Windows XP
Oracle 8 Enterprize Edition
and Developer 6i
plz help men in suggestion of good resposne

Couple of things,
1) With 256meg of RAM, it barely can be called a client machine let alone to be called a server machine.You seriously should have minimum 1gb to have somewhat performance from the system.
2) You are running oracle 8.Its a really really REALLY old version. Any chance to have an idea that how much data would you store over this box? If your data is limited under 4gigs, than you may look at Oracle XE for your project. But again, machine's HW resource will come in between.
3) Its not possible to have a guess about the performance degradation reasons just like that. It may be due to number of reasons. For example , in your case , the foremost reason is resource crunch. Try increasing this and than again use the box for some time. Feedback at that time how it is working.
Aman....

My performance is very slow when I run graphs. How do I increase the speed at which I can do other things while the data is being updated and displayed on the graphs?

I am doing an an aquisition and displaying the data on graphs. When I run the program it is slow. I think because I have the number of scans to read associated with my scan rate. It takes the number of seconds I want to display on the chart times the scan rate and feeds that into the number of samples to read at a time from the AI read. The problem is that it stalls until the data points are aquired and displayed so I cannot click or change values on the front panel until the updates occur on the graph. What can I do to be able to help this?

On Fri, 15 Aug 2003 11:55:03 -0500 (CDT), HAL wrote:
>My performance is very slow when I run graphs. How do I increase the
>speed at which I can do other things while the data is being updated
>and displayed on the graphs?
>
>I am doing an an aquisition and displaying the data on graphs. When I
>run the program it is slow. I think because I have the number of
>scans to read associated with my scan rate. It takes the number of
>seconds I want to display on the chart times the scan rate and feeds
>that into the number of samples to read at a time from the AI read.
>The problem is that it stalls until the data points are aquired and
>displayed so I cannot click or change values on the front panel until
>the updates occur on the graph. What can I do to be a
ble to help
>this?
It may also be your graphics card. LabVIEW can max the CPU and you
screen may not be refreshing very fast.
--Ray
"There are very few problems that cannot be solved by
orders ending with 'or die.' " -Alistair J.R Young

Data Base is very slow

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