How to reduce IO COST???

Dear All,
Any one know how to reduce the IO COST?
Thanks In advance.

Your question is as generic as it could possibly be, and therefore it's not easy to help you. But in a nutshell, IO can be improved by spreading your tablespaces on different different disk readers/writers (not the correct word I'm sure, but hopefully you understand what I mean). Might be good for example to store your indexes in a different tablespace (disk) than the tables, so that there is not too much contention when using the index and table concurrently for a query. You could also reduce the amount of IO by creating new indexes when FTS against large tables are run (if enough of the rows are filtered out). Sorry, that was a very generic answer to a very generic question.
Daniel

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How to reduce the cost for this select script

Hi,
"select id from order where cmd like 'Error ID %'"
This s my script. And the order table has morethan *5lakhs* records, when i select id for the above condition, my sql script cost is - *2200*,and cpu_cost is -- *235660697* i got this above information thro' plan_table, could anyone plz give suggestion to reduce the cost. (fyi -- cmd field has index with not null constraint).
Thanks.

user13294228 wrote:
"select id from order where cmd like 'Error ID %'"
This s my script. And the order table has morethan *5lakhs* records, when i select id for the above condition, my sql script cost is - *2200*,and cpu_cost is -- *235660697* i got this above information thro' plan_table, could anyone plz give suggestion to reduce the cost. (fyi -- cmd field has index with not null constraint).What does these cost numbers mean? Do you know what it means and what measurement unit is used for these costs? Will a cost of 2000 be fine? 1500? What specific number will make you sit back and think that the cost is now acceptable?
Or instead, do you not think it is more important to rather look at what the query does and why.. and then determine if there are methods to do that better and faster?
So let's look at what the query does. It uses a a LIKE predicate. This means that if an index is available, it cannot be used to find a specific indexed value... as the query is not sure what the value is. All that the query knows is what the first couple of characters are for the value.
So how would an index be used? Have you looked at the execution plan? Do you understand why the CBO made the decision it did?
Now - how do you expect the CBO to find the relevant rows any faster? The index benefits the query how? As the CBO cannot put the index to any better use than what it is already doing, what other options are there? Can alternative indexing or data structures be considered? Can parallel processing be used?
These questions are intended to make you analyse the problem - and understand the problem. That is always the 1st step.. solving the problem only comes after this 1st step.

How to reduce shipping cost..

Dear All SAP Guru's,
Our biggest distributor Ingram Micro and our EMT want to reduce shipping costs.Ingram Micro wants less handling of the boxes so there is less damage.
Currently SAP Consolidation is not working properly for consolidating the smaller boxes. We need to have SAP Consolidation work for multiple deliveries into one pallet for one shipment. The bill of lading sapscript must show the correct information. Currently the bill of lading is not showing the correct information when trying to consolidate. The ASN labels need to work properly and hopefully have one label per pallet.
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Any response...

How to reduce development cost by NetWeaver PI

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We have decided to use NetWeaver PI for developing between SAP ERP and Legacy,
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Hi Koji ,
---> go thorugh SAP standard PI documentation will help a lot on this .
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Regards ,

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hi,
Suppose i have a procedure of more than 1000 lines,during normal processing it takes few seconds.So, how can one reduce the processing for the same.
Thanx ,
Piyush

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How to reduce cost for SAP Fiori Trial on CAL?

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How to Reduce cost of full table scan or remove full table scan while execu

Dear Experts
need your help.
I execute a query and create a explain plan in that plan i found cost of a table is very high (2777) and it was full table scan.
Please guide me How to Reduce cost of full table scan or remove full table scan while execute the query.
Thanks

Need your help to tune this query..
SELECT DISTINCT ool.org_id, ool.header_id, ooh.order_number, ool.line_id,
ool.line_number, ool.shipment_number,
NVL (ool.option_number, -99) option_number, xcl.GROUP_ID,
xcl.attribute3, xcl.attribute4
FROM oe_order_headers ooh,
xxcn_comp_header xch,
xxcn_comp_lines xcl,
fnd_lookup_values_vl fvl,
oe_order_lines ool
WHERE 1 = 1
AND ooh.org_id = 1524
AND xch.src_ref_no = TO_CHAR (ooh.order_number)
AND xch.src_ref_id = ooh.header_id
AND xch.org_id = 1524
AND xcl.header_id = xch.header_id
AND ool.line_id = xcl.oe_line_id
AND ool.flow_status_code IN
('WWD_SHIPPED',
'FULFILLED',
'SHIPPED',
'CLOSED',
'RETURNED'
AND ool.org_id = 1524
AND ool.header_id = ooh.header_id
AND xch.org_id = 1524
AND fvl.lookup_type = 'EMR OIC SOURCE FOR OU'
AND fvl.tag = '1524'
AND fvl.description = xch.SOURCE
AND EXISTS (
SELECT 1
FROM oe_order_lines oe
WHERE oe.header_id = ool.header_id
AND oe.org_id = 1524
AND oe.line_number = ool.line_number
AND oe.ordered_item = ool.ordered_item
AND oe.shipment_number > ool.shipment_number
AND NVL (oe.option_number, -99) =
NVL (ool.option_number,
-99)
AND NOT EXISTS (
SELECT 1
FROM xxcn_comp_lines xcl2
WHERE xcl.GROUP_ID = xcl2.GROUP_ID
AND oe.line_id = oe_line_id))
call count cpu elapsed disk query current rows
Parse 1 0.07 0.12 12 25 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 2 103.03 852.42 176206 4997766 0 12
total 4 103.10 852.55 176218 4997791 0 12
In this LIO is very high...can u please help in resolving this performance issue

How to reduce costs and increase efficiency of pho...

Dear Skype community!
I need to find some information about how to reduce costs and increase efficiency of phone calls in sales organisation?
What are advantages of Skype contarry to the concurrence ? I'm Inside Sales manager SEMEA
Is there anyone who can explaine ?
thanks a lot !
Solved!
Go to Solution.

Tilly_in_action,
Review the following link:
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How to reduce Costing

I have following query but the query takes too high costing, how should i reduce the cost.
TRANCHE_BALANCE table having partition.
query is
SELECT /* + NO_USE_HASH(tbb) index(tbb XIE3TRANCHE_BALANCE) index (tbb XIE4TRANCHE_BALANCE) */
tbb.project_id, tbb.tranche_nbr,
tbb.summary_date,
tbb.product_sub_type_code,
tbb.product_type_code,
CAST (tbb.crmcmt_usd_amt AS NUMBER) crmcmt_usd_amt,
CAST (tbb.crmdout_usd_amt AS NUMBER) crmdout_usd_amt,
CAST (tbb.crmmtm_usd_amt AS NUMBER) crmmtm_usd_amt,
CAST (tbb.crmoleq_usd_amt AS NUMBER) crmoleq_usd_amt,
CAST (tbb.crmunds_usd_amt AS NUMBER) crmunds_usd_amt,
CAST (tbb.crmamtm_usd_amt AS NUMBER) crmamtm_usd_amt
FROM mis.tranche_balance tbb,
mis.product_categorization pc
Where tbb.product_type_code = pc.product_type_code
AND tbb.product_sub_type_code = pc.product_sub_type_code;
PLAN SHOWS
SELECT STATEMENT CHOOSE
Cost :18,846 Bytes 97,768,6-368 Cardinality: 2,036,841
# HASH JOIN
Cost:18,846 Bytes :252 Cardinality : 2,036,841
INDEX FULL SCAN UNIQUE MIS.XPKPRODUCT_CATGORIZATION
Cost : 2 Bytes:252 Cardinality :36
PARTITION RANGE ALL
Partition #:3 Partition acessed #1 - #122
TABLE ACCESS FULL MIS.TRANCHE_BALANCE
Cost :18,789 Bytes : 83,510,481 Cardinality:2,036,841
Partition #:3 Partition acessed #1 - #122
Thanks for advance

debasishghosh wrote:
I have following query but the query takes too high costing, how should i reduce the cost.
TRANCHE_BALANCE table having partition.Firstly, regardless of the "cost", is the query performant? If not, take a read of the following thread...
When your query takes too long ...
Secondly, it would be helpful, when you post code or data, if you put {noformat}{noformat} tags before and after it so that the formatting is retained on the forum. I'll do that here for you for now...SELECT /* + NO_USE_HASH(tbb) index(tbb XIE3TRANCHE_BALANCE) index (tbb XIE4TRANCHE_BALANCE) */
tbb.project_id, tbb.tranche_nbr,
tbb.summary_date,
tbb.product_sub_type_code,
tbb.product_type_code,
CAST (tbb.crmcmt_usd_amt AS NUMBER) crmcmt_usd_amt,
CAST (tbb.crmdout_usd_amt AS NUMBER) crmdout_usd_amt,
CAST (tbb.crmmtm_usd_amt AS NUMBER) crmmtm_usd_amt,
CAST (tbb.crmoleq_usd_amt AS NUMBER) crmoleq_usd_amt,
CAST (tbb.crmunds_usd_amt AS NUMBER) crmunds_usd_amt,
CAST (tbb.crmamtm_usd_amt AS NUMBER) crmamtm_usd_amt
FROM mis.tranche_balance tbb,
mis.product_categorization pc
Where tbb.product_type_code = pc.product_type_code
AND tbb.product_sub_type_code = pc.product_sub_type_code;
SELECT STATEMENT CHOOSE
Cost :18,846 Bytes 97,768,6-368 Cardinality: 2,036,841
# HASH JOIN
Cost:18,846 Bytes :252 Cardinality : 2,036,841
INDEX FULL SCAN UNIQUE MIS.XPKPRODUCT_CATGORIZATION
Cost : 2 Bytes:252 Cardinality :36
PARTITION RANGE ALL
Partition #:3 Partition acessed #1 - #122
TABLE ACCESS FULL MIS.TRANCHE_BALANCE
Cost :18,789 Bytes : 83,510,481 Cardinality:2,036,841
Partition #:3 Partition acessed #1 - #122
Without knowing your tables and what indexes you have defined on them and without knowing the number of rows of data as well as the cardinality and selectivity of the data, we're not going to be able to give any real advice.
What happens if you leave out the Hints? (Index and Optimiser Hints shouldn't be used in production code, they should only be used for debugging - with the exception of the APPEND hints for inserts)

In a SQL query whihc has join, How to reduce Multiple instance of a table

in a SQL query which has join, How to reduce Multiple instance of a table
Here is an example: I am using Oracle 9i
is there a way to reduce no.of Person instances from the following query? or can I optimize this query further?
TABLES:
mail_table
mail_id, from_person_id, to_person_id, cc_person_id, subject, body
person_table
person_id, name, email
QUERY:
SELECT p_from.name from, p_to.name to, p_cc.name cc, subject
FROM mail, person p_from, person p_to, person p_cc
WHERE from_person_id = p_from.person_id
AND to_person_id = p_to.person_id
AND cc_person_id = p_cc.person_id
Thnanks in advance,
Babu.

SQL> select * from mail;
        ID          F          T         CC
         1          1          2          3
SQL> select * from person;
       PID NAME
         1 a
         2 b
         3 c
--Query with only ne Instance of PERSON Table
SQL> select m.id,max(decode(m.f,p.pid,p.name)) frm_name,
2         max(decode(m.t,p.pid,p.name)) to_name,
3         max(decode(m.cc,p.pid,p.name)) cc_name
4 from mail m,person p
5 where m.f = p.pid
6 or m.t = p.pid
7 or m.cc = p.pid
8 group by m.id;
        ID FRM_NAME   TO_NAME    CC_NAME
         1 a          b          c
--Expalin plan for "One instance" Query
SQL> explain plan for
2 select m.id,max(decode(m.f,p.pid,p.name)) frm_name,
3         max(decode(m.t,p.pid,p.name)) to_name,
4         max(decode(m.cc,p.pid,p.name)) cc_name
5 from mail m,person p
6 where m.f = p.pid
7 or m.t = p.pid
8 or m.cc = p.pid
9 group by m.id;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 902563036
| Id | Operation           | Name   | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT    |        |     3 |   216 |     7 (15)| 00:00:01 |
|   1 | HASH GROUP BY      |        |     3 |   216 |     7 (15)| 00:00:01 |
|   2 |   NESTED LOOPS      |        |     3 |   216 |     6   (0)| 00:00:01 |
|   3 |    TABLE ACCESS FULL| MAIL   |     1 |    52 |     3   (0)| 00:00:01 |
|* 4 |    TABLE ACCESS FULL| PERSON |     3 |    60 |     3   (0)| 00:00:01 |
PLAN_TABLE_OUTPUT
Predicate Information (identified by operation id):
   4 - filter("M"."F"="P"."PID" OR "M"."T"="P"."PID" OR
              "M"."CC"="P"."PID")
Note
   - dynamic sampling used for this statement
--Explain plan for "Normal" query
SQL> explain plan for
2 select m.id,pf.name fname,pt.name tname,pcc.name ccname
3 from mail m,person pf,person pt,person pcc
4 where m.f = pf.pid
5 and m.t = pt.pid
6 and m.cc = pcc.pid;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 4145845855
| Id | Operation            | Name   | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT     |        |     1 |   112 |    14 (15)| 00:00:01 |
|* 1 | HASH JOIN           |        |     1 |   112 |    14 (15)| 00:00:01 |
|* 2 |   HASH JOIN          |        |     1 |    92 |    10 (10)| 00:00:01 |
|* 3 |    HASH JOIN         |        |     1 |    72 |     7 (15)| 00:00:01 |
|   4 |     TABLE ACCESS FULL| MAIL   |     1 |    52 |     3   (0)| 00:00:01 |
|   5 |     TABLE ACCESS FULL| PERSON |     3 |    60 |     3   (0)| 00:00:01 |
PLAN_TABLE_OUTPUT
|   6 |    TABLE ACCESS FULL | PERSON |     3 |    60 |     3   (0)| 00:00:01 |
|   7 |   TABLE ACCESS FULL | PERSON |     3 |    60 |     3   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   1 - access("M"."CC"="PCC"."PID")
   2 - access("M"."T"="PT"."PID")
   3 - access("M"."F"="PF"."PID")
PLAN_TABLE_OUTPUT
Note
   - dynamic sampling used for this statement
25 rows selected.
Message was edited by:
        jeneesh
No indexes created...

How to capture planned cost

Dear experts ,
please help me in the following scenario.
At one of our location we have PP-PS scenario. production order is made for production in PP module.
in that location mostly JOB production is done, there about 30 % of the total cost of equipment is given to outside contractors. our problem is how to capture that cost in budget ( WBS system is being followed ) in PO WBS is assigned. we have created an activity and rate is maintained in KP26 for that activity so that planned cost is arrived at ( we have to capture the planned cost in production order) , our problem is in WBS amount is coming twice
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our requirement is budget what is to be done so that budget amount is not reduced twice , we also want to capture the planned cost in production order.
Thanks and regards
sanjiv

HI,
Inorder to get all the actual costs on activity which is actually on WBS. You can do an enhancement. This enhancement should find the all POs against PR which belongs to an activity and will repost the costs that is being posted on WBS on GR to the concerned activity.
Regards,
Anjali

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Hi,
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In my ssis Package iam using
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I have somthing like this..
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How to find the cost center group from cycle/ segment in CO module?

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