Partitioning on Oracle 8i (Rule Based vs. Cost Based)

At my current engagement, we are using Oracle Financials 11.0.3 on Oracle 8.0.6. The application uses rule-based optimizer. The client wants to implement Oracle partitioning. With this in mind, we are concerned about possible performance issues that the implementation of partitioning may cause since RBO does not recognize it.
We agree that the RBO will see a non-partitioned table the same as a partitioned. In this scenario where you gain the most is with backup/recoverability and general maintenance of the partitioned table.
Nevertheless, we have a few questions:
When implementing partitions, will the optimizer choose to go with Cost base vs. Rule base for these partitioned tables?
Is it possible that the optimizer might get confused with this?
Could it degrade performance at the SQL level?
If this change from RBO to CBO does occur, the application could potential perform poorly because of the way it has been written.
Please provide any feedback.
Thanks in advance.

If the CBO is invoked when accessing these tables, you may run into problems.
- You'll have to analyze your tables & ensure that the statistics are kept up to date.
- It's possible that any SQL statements which invoke the CBO rather than the RBO will have different performance characteristics. The SYSTEM data dictionary tables, for example, must use the RBO or their performance suffers dramatically. Most of the time, the CBO beats the RBO, but applications which have been heavily tuned with the RBO may have problems with the CBO.
- Check your init.ora to see what optimizer mode you're in. If you're set to CHOOSE, the CBO will be invoked whenever statistics are available on the table(s) involved. If you choose RULE, you'll only invoke the CBO when the RBO encounters situations it doesn't have rules for.
Justin

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Cash Flow in BW based on cost based COPA

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2. Can we create Cash flow and Profit and loss based on Account based COPA.
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Hi Ali Khan,
Kindly have a look at below link,
http://sap.seo-gym.com/copa.pdf
yes it's possible and it will not affect BW.
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hi friends,
what is main deffirencebetween account based and cost based in co-pa. what scenerio we use account based and what scenerio we use cost based.
Thanking u
suneel.

Hi,
It all depends on the OPerating oncern which you are going to use for the CO-PA implementaion.
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Message was edited by:
Ajeet Singh

1 Operating Concern for Account Based and Cost Based COPA

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We are using Operating Concern 3000 for Account Based and Cost based Profitability Analysis. However when i try to extract data from the account based Operating concern it gives me an error in extraction : error 09.
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Hi
Have you deactivated any of the characteristics used in Account based COPA
Check KEQ3 and you may have activated only for Costing based COPA
S Jayaram
Edited by: S Jayram on Dec 18, 2007 3:24 PM

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Hello Guru's,
We are on ECC 6.0 and BI 7.3. Our customer is going to implement Accounting based COPA and Costing based COPA in ECC. We have a requirement to have both the Accounting based and Costing based COPA analysis available in BI.
My questions and concerns:
If we configure both type of COPA in ECC then Can we create both type of data sources also in ECC ? one for Accounting based COPA and one for Costing based copa ? If yes then do we need to have 2 infocubes in BI or one infocube with mapping of both the data source will work ? ... do please correct me or suggest me.
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Hi Sridhar,
Thanks for your reply, can you explain if we want to stop one of the method, what is the steps that need to be done?
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Can you please give me an example of typical extractor output for account based and cost based models.
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Is it the same principle like account based and key figure based in planning?
Edited by: Comandante Che Guevara on Jun 1, 2009 10:43 AM

no answer

Account Based Vs Cost Based COPA - Char Derivation

We're trying to implement both Cost based and Account based COPA at a client here.
I have some derivation rules maintained in KEDR.
When I'm trying to post a document in FI, the cost based COPA document is being created with the Characteristics populated correctly according to the derivation rules. However, in Account based COPA the characteristics are NOT getting derived.
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Hi
Have you deactivated any of the characteristics used in Account based COPA
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S Jayaram
Edited by: S Jayram on Dec 18, 2007 3:24 PM

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Data Source-Accounting Base:
When we generate CO-PA Data Source select accounting based option.
Fields KOKRS, BUKRS, KSTAR are compulsory.
There are no Characteristics available for line Items because accounting based data sources do not contain characteristics.
There are no value fields or calculated key figures available
KOKRS and PERIO must be selected as selection fields.
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Time Stamp which data has already been loaded in to BW.
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COPA : account based vs cost based?

Hello
Can somebody clearly explain me the difference between AB and CB COPA types
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Plz follow forum rules.
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Hello Everyone,
What is the difference between Accounting Based OH & Costing Based OH?
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Edited by: Sneha Latha on Sep 16, 2009 8:56 AM

It has been asked dozens of time. Please, search SDN or lookt in http://help.sap.com
http://help.sap.com/saphelp_erp60_sp/helpdata/en/7a/4c37ef4a0111d1894c0000e829fbbd/frameset.htm

COPA -costing based accounting

Hi,
Could you please provide me configuration steps for costing based accounting?
That could be gratefully
Thank you

HI,
Please refer to the Thread posted today for COPA config.
Re: COPA
Basic config steps
1. Maintain Characterstics
IMG- CO-Profitablity Analysis - Structures -Define Operating Concern - Maintain char
2. Maintain Value Fields
3. Define Operating concern (Accouting based or costing based) , copy the standard operating concern settings provided by sAP
4. Set operating concern (KEBC)
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6. define profibaility segment char
2. Master Data
2.1 Maintain char values
2.2 Define char hierarchies
2.3Define Char derivation
2.4 Define and assign valuation strategy
2.5Define keys for accessing material cost estimates
2.6 Assign costing keys to any char
2.7 Assign value fields
3 Planning
3.1 Define number ranges for planning data
3.2 Maintain versions
3.3 Assign quantity fields
3.4 Setup planing framework
3.5 Assign char groups to plan cycles
3.6Assign receiver plan versions
3.7Define structure of cost center assessment
4.Flow of actual values
4.1 Define number ranges for actual postings
4.2Maintain value field groups
4.3 Assign value field grops for line item screens
4.4 Activiate transfer of incoming sales order
4.5 transfer of biling doc
4.6 Assign quantity fields
4.7 Maintain PA transfer structure for direct posting FI.MM (KEI2)
4.8 Automatic account assignment (OKB9)
4.9 Define PA transfer structure for variance settlement
4.10 Assign PA transfer structure to Settlement profile
Activate profitability analysis (customizng req gets generated)
All these can be accessed throug SPRO - Controlling - PA
AFter maintain the configuraiton settings, you can develop custom defined COPA reports using Information ssytems.
Hope this helps. Pls assign points as a way to say thanks
Thanks and regards,
RAdhika
Thanks and Regards,
Radhika

Costing based and account based

HI All
Kindly let me know difference between costing based copa and accounting based copa with examples
Thanks & Regards
Phaneendra

Two forms of Profitability Analysis are supported: costing-based and account-based.
Costing-based Profitability Analysis is the form of profitability analysis that groups
    costs and revenues according to value fields and costing-based valuation approaches,
    both of which you can define yourself. It guarantees you access at all times to
    a complete, short-term profitability report.
Account-based Profitability Analysis is a form of profitability analysis organized in
    accounts and using an account-based valuation approach. The distinguishing
    characteristic of this form is its use of cost and revenue elements. It provides you with
    a profitability report that is permanently reconciled with financial accounting.
You can also use both of these types of CO-PA simultaneously.
(courtesy: help.sap.com)
It is strongly recommended, however, that you do not activate both types of CO-PA. The
major reason being is that you will have significant table size impacts. You must be careful
with account based CO-PA as this creates additional line items in the existing CO tables of
COEP (actual), COEJ (plan), COSP & COSS (summary records). Hence if you want to do any
cost center reporting, say, from any of these existing tables you will run the risk that
performance will be degraded by these additional and unnecessary records.
The only advantage of account based over costing based CO-PA is it's ability to
automatically reconcile back to FI, in much the same manner as you would reconcile
cost center accounting back to FI. However you don't have the flexibility in account
based CO-PA to perform valuations using product cost estimates etc. as you do in
costing based CO-PA. If the reason you were advised to turn on account based CO-PA
as well as costing based was to facilitate reconciliation, it is suggested that you look
at alternatives that won't have the same negative impacts that turning on account
based would have. In addition to the serious table space issues, it is not that easy to
turn on and off account based at will (especially in production).
Instead what you should look at doing is creating a series of reports that enable you to
reconcile costing based CO-PA back to CCA/PCA and FI, if this is required. The complexity
of the costing based functionality you have used will determine the complexity of the
reports that will be needed to reconcile back, but it can be done without turning on
account based CO-PA.

What is CoPA , what is the difference between Cost based, Account based

Hi
what is Copa, what is the difference between cost based , Account based copa, where we can use.
can you send me please related document.
Thank you
Anil

Hello
Profitability Analysis (CO-PA) enables you to evaluate market segments, which can be classified according to products, customers, orders or any combination of these, or strategic business units, such as sales organizations or business areas, with respect to your company's profit or contribution margin.
The aim of the system is to provide your sales, marketing, product management and corporate planning departments with information to support internal accounting and decision‑making.
Two forms of Profitability Analysis are supported: costing-based and account-based.
· Costing-based Profitability Analysis is the form of profitability analysis that groups costs and revenues according to value fields and costing-based valuation approaches, both of which you can define yourself. It guarantees you access at all times to a complete, short-term profitability report.
· Account-based Profitability Analysis is a form of profitability analysis organized in accounts and using an account-based valuation approach. The distinguishing characteristic of this form is its use of cost and revenue elements. It provides you with a profitability report that is permanently reconciled with financial accounting.
You can also use both of these types of CO‑PA simultaneously.
Check this link for more help
http://help.sap.com/erp2005_ehp_02/helpdata/en/7a/4c48c64a0111d1894c0000e829fbbd/frameset.htm
reg
*assign points if useful

Re: Oracle 8i (8.1.7.4) Rule based v/s Cost based

Hi,
I would like to know the advantages/disadvantages of using RULE based optimizer v/s COST based optimizer in Oracle 8i. We have a production RULE based database and are experiencing performance issues on some queries sporadically.
TKPROF revealed:
call     count       cpu    elapsed             disk                  query                current              rows
Parse        0      0.00       0.00                0                      0                      0                      0
Execute      3     94.67    2699.16            1020421            5692711            51404               0
Fetch       13    140.93    4204.41            688482             4073366          0                      26896
total       16       235.60    6903.57           1708903           9766077            51404               26896
Please post your expert suggestions as soon as possible.
Thanks and Regards,
A

I think the answer you are looking for is that Rule Based optimizer is predictive, but Cost Based optimizer results may vary depending on statistics of rows, indexes, etc. But at the same time, you can typically get better speed for OLTP relational databases with CBO, assuming you have correct statistics, and correct optimizer settings set.

Partitioning on Oracle 8i (Rule Based vs. Cost Based)

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