Split the load between OLTP and Reporting

Hi,
my new client is in need of a method for splitting the load on one same database where OLTP as well as Reporting applications are both running against the same tables.
Environment description: Oracle 10g release 2 on AIX.
Within the OLTP application, 4 tables are heavily used with several millions of DMLs per day (mostly INSERTS and UPDATES). Those 4 tables are sharing the same primary key and are constantly joined by the reporting tool.
The business requirement is that the data being read by the reporting tool needs to be "near live" to "live".
My first idea is to implement an MView log for each of the 4 OLTP tables (on independent physical drives), as well as a "FAST REFRESH on COMMIT" materialized view joining the 4 tables, this way, the reporting tool can read "live" data from this new physical object (stored independently) instead of the actual OLTP tables.
The Reporting tool needs to perform some light DMLs on some of the other OLTP tables, and the new Materialized view (joining the 4 tables) cannot be stored in another physical database for this reason.
Any thoughts on this setup (any different architecture ideas ?)
Did someone implement a similar setup ? (with similar large volume involved)
Would FAST REFRESH ON COMMIT slow down the OLTP system too much ?
Thank you,
Patrick
www.renaps.com

Hi Justin,
I agree with you that the benefit we would gain from not having to join the reporting tables would affect the transactional performance.
Although, by doing so, we would also get rid of about half of the transactional indexes (indexes that were added to improve the performance of the reporting queries on the actual highly used OLTP tables).
I would think that the I/O performance lost by adding materialized view logs on the transactional tables would be grossly canceled by removing the additional indexes.
Of course, this is only in theory as I can't really confirm this fact until the actual tests.
To answer your question, the main reasons the load needs to be splited from the OLTP are:
1) to improve the reporting performance (since those tables are always joined together).
2) to reduce the over-head on the OLTP system so the sporadic reporting transactions do not affect the OLTP performance.
3) keeping both the OLTP and Reporting systems in the same database is for now a necessity since the Reporting system also initiates some DML operations on the OLTP tables.
please let me know your thoughts..
Thanks!
Patrick

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http://expertanswercenter.techtarget.com/eac/knowledgebaseAnswer/0,295199,sid63_gci977813,00.html
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hope it helps...

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Hi,
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Proved to be extremely useful in implementation projects.
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eCATT enables automatic testing in SAP GUI for Windows and SAP GUI for Java.
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There can be several versions of Test Scripts, which allows different implementations with different releases.
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Why eCATT?
CATT is no longer supported by SAP for the creation of new developments. Hence all the test scripts developed in CATT are now need to migrate/Update to eCATT. Comparative to manual testing, the following are advantages of using eCATT:
Due to automation, testing time is reduced to a large extent.
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Proved to be extremely useful in implementation projects.
In regression testing, automated test scripts are an ideal method of quickly detecting errors. Automatic test logs make it easy to reproduce test results, enabling fast analysis and planning of further activities, leading to cost savings for the customer.
Reward points if it is helpful.
Rgds,
P.Nag

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Further notes - Authorizations
Repair program authorization group (F_005)
Company code authorization (F_BKPF_BUK)
Thanks
Venkata Ganesh Perumalla
Edited by: Venkata Ganesh Perumalla on Sep 28, 2010 1:30 PM

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from gl_code_combinations_kfv
where CONCATENATED_SEGMENTS = :P_TO_COMBINATION_CODE)
AND TRUNC(dEFAULT_EFFECTIVE_DATE) BETWEEN NVL(:P_FROM_DATE, DEFAULT_EFFECTIVE_DATE) AND NVL(:P_to_DATE, DEFAULT_EFFECTIVE_DATE)
Thanks in advance

Welcome to the world of complicated Oracle Application queries. Didn't fully understand your question, so a few guesses -
I think that you are asking how to make your query faster? I would reference the FAQ section on how to post a question regarding performance.
Your title indicates you want to understand the relationship between tables and views. In general, Oracle Applications uses views for 2 reasons - to join data from multiple tables for display, and to differentiate data from different organizations. (I am still on 11i and have heard organizations are handled differently in 12 so I can't speak to that for sure).
To understand the relationship between tables in a view, you can access the view's source code, either through a development tool such as PL/SQL Developer or TOAD (I'm guessing Oracle's tool does this also, but have never used it), or by querying the source from the dba_source table.
select * from dba_source where name = (name of view) and type = 'VIEW' order by line;without the ( ) just the view name, in all capital letters i.e. , 'GL_JE_LINES_V'
Good luck!

What is the difference between ABAP and HR-ABAP?

Hi people,
Could u just tel me abt what is the difference between ABAP and HR-ABAP?
Thanks in advance,
Sanjeev K.V

Hi Sir ,
Please have a look below .Hope it is suitable and simpler solution for your question.
Please do reward if useful.
Thankx.
HR deals with the INFOTYPES which are similar to Tables in General ABAP.
There are different ways of fetching data from these infotypes.
There are different areas in HR LIKE Personal Admn, Orgn Management, Benefits, Time amangement, Event Management, Payroll etc
Infotypes for these areas are different from one another area.
storing of records data in each type of area is different
LDBS like PNP are used in HR programing.
Instead of Select.. we use some ROUTINES and PROVIDE..ENDPROVIDE.. etc
and in the case of Pay roll we use Clusters and we Import and Export them for data fetching.
On the whole Normal ABAP is different from HR abap.
Also,
HR:
HR deals with the INFOTYPES which are similar to Tables in General ABAP.
There are different ways of fetching data from these infotypes.
There are different areas in HR LIKE Personal Admn, Orgn Management, Benefits, Time amangement, Event Management, Payroll etc
Infotypes for these areas are different from one another area.
storing of records data in each type of area is different
LDBS like PNP are used in HR programing.
Instead of Select.. we use some ROUTINES and PROVIDE..ENDPROVIDE.. etc
and in the case of Pay roll we use Clusters and we Import and Export them for data fetching.
On the whole Normal ABAP is different from HR abap.
For Personal Admn the Infotypes start with PA0000 to PA1999
Time Related Infotypes start with PA2000 to PA2999.
Orgn related Infotypes start with HRP1000 to HRP1999.
All custom developed infotypes stsrat with PA9000 onwards.
In payroll processing we use Clusters like PCL1,2,3 and 4.
Instead of Select query we use PROVIDE and ENDPROVIDE..
You have to assign a Logical Database in the attributes PNP.
Go through the SAp doc for HR programming and start doing.
http://www.sapdevelopment.co.uk/hr/hrhome.htm
See:
http://help.sap.com/saphelp_46c/helpdata/en/4f/d5268a575e11d189270000e8322f96/content.htm
sites regarding hr-abap:
http://www.sapdevelopment.co.uk/hr/hrhome.htm
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/PAPA/PAPA.pdf
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/PAPD/PAPD.pdf
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/PYINT/PYINT_BASICS.pdf
http://www.atomhr.com/training/Technical_Topics_in_HR.htm
http://www.planetsap.com/hr_abap_main_page.htm
You can see some Standard Program examples in this one ...
http://www.sapdevelopment.co.uk/programs/programshr.htm
http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci1030179,00.html?Offer=SAlgwn12604#Certification
http://www.erpgenie.com/faq/hr.htm.
http://www.planetsap.com/hr_abap_main_page.htm
http://www.sapbrain.com/TUTORIALS/FUNCTIONAL/HR_tutorial.html
These are the FAQ's that might helps you as well.
http://www.sap-img.com/human/hr-faq.htm
http://www.sapgenie.com/faq/hr.htm
http://www.planetsap.com/hr_abap_main_page.htm
http://www.atomhr.com/library_full.htm
HR Long texts Upload
Look at the below link
And finally,
Few notes are below:
InfoSets in the HR Application
You can use SAP Query in HR to report on HR data. Queries are maintained as described in Creating Queries. The special features of queries created for HR are described in Maintaining Queries in the Human Resources Application. The maintenance procedure for HR InfoSets differs from the described procedure inasmuch as HR data fields are grouped together in infotypes.
InfoSet management in SAP Query is also used for InfoSet Query. For further information, see Functions for Managing InfoSets.
If you want to create InfoSets for HR, you can use logical databases PNP, PNPCE, PAP, and PCH (see HR Logical Databases). The database you must use to create your InfoSet depends on the component in which the data you want to report on is stored.
The reports you can execute using InfoSets based on logical databases PNP (or PNPCE) or PCH are similar, but differ in that they can select different objects. The following table describes the connection between the logical database, and the infotypes you can include in an InfoSet. It also provides you with one or two examples of reports that you can execute using the appropriate InfoSets.
Logical database PNP/PNPCE* PCH PAP
Selection of Persons Objects from Personnel Planning Applicants
Infotypes that can be included in the InfoSet Infotypes for· Personnel Administration (0000-0999) · Time Management (2000-2999) · Payroll infotypes · Infotypes for Personnel Planning objects that can be related to persons If the object type is specified:· Infotypes for the object type · Infotypes for objects that can be related to the specified object typeIf the object type is not specified:· All infotypes · Infotypes for Recruitment (4000-4999)· Some infotypes for Personnel Administration (such as 0001 and 0002)
· Customer infotypes
Reporting examples · Selection of all persons who participated in a specific business event, output of prices for reserved business events · Selection of all persons assigned to a specific personnel area, output of qualifications held by these persons · Selection of all business events held in London in March, output of all persons who participated in these business events · Selection of all positions assigned to a specific organizational unit, output of all persons assigned to the positions · Selection of all applicants hired last year to work on special projects, output of addresses for the applicants selected
Logical database PNPCE (PNP Concurrent Employment) functions just like logical database PNP. The procedure for creating InfoSets is also the same. It only becomes significant if you work with Concurrent Employment.
Creating InfoSets
The maintenance procedure for HR InfoSets differs from the procedure described so far in this section inasmuch as HR data fields are grouped together in infotypes. To set up an InfoSet for the HR application, proceed as follows:
1. On the initial screen for maintaining InfoSets, enter a name for the InfoSet and choose Create.
2. On the next screen, enter a name for the InfoSet and select one of the HR logical databases in accordance with your reporting requirements.
Customer infotypes can be created on all HR logical databases. In each individual case, therefore, you must decide which database to select so that you can report on customer infotypes.
This screen enables you to enter an authorization group. All of the queries that are subsequently created using this InfoSet can only be executed by persons who have this authorization group.
3. Choose .
This takes you to the Infotype Selection for InfoSet screen. You now have the option of creating field groups and assigning fields as required for non-HR InfoSets. Field groups that correspond to infotypes and already contain fields, however, are always created for HR InfoSets. The field groups are displayed in an overview tree in the top right section of the screen.
The infotypes that you included in the InfoSet are displayed in an overview tree on the left of the screen. The infotype fields that are already included in field groups are displayed in a different color, and the corresponding field group ID is displayed.
In the standard system, a field group is created automatically for each infotype that you included in the InfoSet (a field group corresponds to an infotype).
In the standard system, each field group contains the infotype-specific fields. To ensure that working with the InfoSet is as easy as possible, you are advised to restrict your use of fields in each field group to those you really require. This means you should remove fields that are not required.
An infotype's fields must only be assigned to the pertinent field group. Make sure this assignment is correct. If the assignment is incorrect, the InfoSet could be rendered unusable.
When an InfoSet is created, the following fields are transferred automatically to the first field group:
§ Logical database PNPCE or PNP Personnel number
§ Logical database PAP Applicant number
§ Logical database PCH Object ID, plan version, and object type
6. Determine the fields that must be included in the field groups of your InfoSet. If you require further information, see Assigning Fields to a Field Group.
If you want, you can change the default sequence of field groups and fields as required using Drag&Drop.
7. To save the InfoSet, choose .
8. To generate the InfoSet, choose .
On the Change InfoSet (InfoSet name) screen, you can choose Edit ® Change infotype selection to add more infotypes to the InfoSet, or to remove infotypes from the InfoSet. Remember to regenerate the InfoSet afterwards.
This screen also enables you to update InfoSets if, for example, the system contains new additional fields for specific key values. To do so, choose InfoSet ® Additional functions ® Update additional HR fields.
9. Go back to the initial screen for InfoSet maintenance.
10. Choose User group assignment.
11. Select a user group, and save your entry.
sample code
START-OF-SELECTION.
GET pernr.
rp_provide_from_frst p0000 space pn-begda pn-endda.
if pnp-sw-found EQ '1'.
READ TABLE p0001 WITH KEY pernr = p0000-pernr.
if sy-subrc = 0.
write : p0001-plans. " earliest.
endif.
endif.
rp_provide_from_last p0014 space pn-begda pn-endda.
if pnp-sw-found EQ '1'.
READ TABLE p0014 WITH KEY pernr = p0000-pernr.
if sy-subrc = 0.
write : p0014-LGART. .
endif.
endif.

Hi guru's what is the difference between table and temlate in smartforms

hi guru's what is the difference between table and temlate in smartforms

Hi Vasu,
Template is used for proper allignment of data which table is used for displaying multiple data.
We can say Template is for static data and Table is for dynamic data.
Suppose we have a requirement in which we have to allign the customer address in such a way as shown below:-
Name- Vasu Company- WIPRO Location- Chennai
Desig- S/W Native - Mumbai
Then for proper allighnment we can create a template and split that into 3 columns and 2 rows and create text elements for each cell display a proper allighned data at the output.
When we include a template inside a loop it gives the same property as a table.
When we have mutiple data which is to be extended to the next page like when we display all employee details in a company we use table.
Table has 3 sections , HEADER, ITEM ,FOOTER
The header secntion will be executed once and it will loop at the item level. at the end footer will be executed.
Hope this gives u some idea..
<b>Please reward if useful</b>
Regards,
sunil kairam.

Split the load between OLTP and Reporting

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