When we go for Views and Function Modules for Generic Extraction

Hi Experts,
Can you please explain when we go for extracting the data using Views and when we got using Function Modules using Generic Extraction from R/3 system to BW with examples. And also can you explain when we go for delta for the above both scenarios.
Thanks for you help in advance
Rohith

Hi,
Scenario for Extarction using FM
Imagine the scenario where you need to extract data from
tables having no common field between them and thereby preventing you from creating a view on top of those tables..
Or simply consider tables that are highly unrelatd in terms of fields, but you have a requiremnt to extract data from them.
Also Refer.
create generic extractor based on 2 tables
Generic Extraction via Function Module
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
Steps.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a0f46157-e1c4-2910-27aa-e3f4a9c8df33
http://help.sap.com/saphelp_nw04/helpdata/en/86/1c8c3e94243446e10000000a114084/frameset.htm
Scenario for Extraction using View
If there are more number of tables and data in those tables can be represented using joins then we can use this type of extraction
For more info Refer these links
http://help.sap.com/saphelp_nw2004s/helpdata/en/cf/21ecf9446011d189700000e8322d00/frameset.htm
Difference between "Help View" and "Search Help"
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ed06446011d189700000e8322d00/frameset.htm
for more detailed info look on:
http://www.sap-img.com/abap/what-is-the-different-types-and-usage-of-views.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/abap+dictionary&
For GEneric Delta refer these links
[generic with delta;
[https://forums.sdn.sap.com/click.jspa?searchID=11388803&messageID=5164737]

Similar Messages

How to extract data by using function module in generic extraction please

how to extract data by using function module in generic extraction please give me steps required

Dear Deba,
Generic Extraction via Function Module
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
If the requirement is like extracting data from multiple tables with some complex logic then views cannot be used..so u cna go for FM is used where it can be achieved.
Chk these
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a0f46157-e1c4-2910-27aa-e3f4a9c8df33
check the following thread
generic extraction with function module
Generic Extraction with function module
Regards,
Ram.

When to go for generic extraction using view and infoset query?

Hi,
Can anyone clarify me when we should go for generic extraction using view and when we should go for generic extraction using infoset query....
Also what is the difference between view and infoset?
I tried but could not find out....
Regards,
Kalyani.

Hi Kalyani,
We normally go for View or infoset when the data to be fetched in BW is distributed in different tables in SAP R/3.
Had the data been available in one table we can easily build our datasource on that table but if there are more tables then its not possible to do it without Views or Infosets. You can use Function Modules to build your datasource in case it involves complex logic to figure out the data from various tables.
Depending upon the table relationships we create view and include various fields from these tables in that view. Same is with the Infosets, you can have more flexible options like Outer Join, left outer Join etc.
Regards,
Pratap Sone

How to extract data from generic view and function module

hi experts,
can anybody give me the steps to extract data from generic view and functon modules.
thanks and regards
venkat

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a0f46157-e1c4-2910-27aa-e3f4a9c8df33
https://websmp103.sap-ag.de/~sapidb/011000358700007535452002
Hope it Helps
Chetan
@CP..

Help on Function module in Generic Extraction

Hi ,
i am writing FM in for Generic Extraction.
i am dont know ABAP.
i am using RSAX_BW_GET_DATA_SIMPLE..
i created Strcture from the MVER table ..
Strcture fileds : MATNR
                       GJAHR
                       GSV01,
                       GSV02,
                       SUM.
SUM is not in the MVER table .
Pl . give me code for this logic ..
Logic :
Take sum of GSV01 , GSV02 from table MVER with the key
                   MVER-MATNR = MARA- MATNR and
                   MVER-GJAHR = Year from SY-DATUM.
Pl . give me code for this logic..
i assign points ..
Regards,
PSR
Edited by: PSR on Feb 19, 2008 11:08 AM

Hi Diego Lombardini ,
thanks for fast reply..
i retrieve fields from 6 tables , thats why i choose function module but
my main logic mention above .
i created view but it gives wrong values bcoz lot of joins .
so i decide FM is better option ..
Pl . provide code for this logic ..
Regards,
PSR

How to control iteration of function module in generic extraction to BW

Hi Experts,
I am customizing standard Function module RSAX_BIW_GET_DATA_SIMPLE. My problem is, while excecuting datasource in RSA3, my function module is repeating many times.....example if my FM fetches data of 70 records.......FM is repeating 70* n times while executing it in a data source.
How to contol this loop?
Can anyone please help me.

Hi,
This FM is used to get list of files from Application server (will work in Background). This cannot be used to list files from presentation server. There is no way , by which you can process presentation server files in background mode.
Regards
Vinod

Creating Function Module in Generic Extractor?

Hello All
DO anyone has steps how to create a Functional Module in Generic Extraction?
Pl let me know
Many Thanks
balaji

hi Balaji,
first create your function module (se37),
sample code see function module
RSAX_BIW_GET_DATA_SIMPLE.
then follow steps in create generic datasource
http://help.sap.com/saphelp_nw04/helpdata/en/3f/548c9ec754ee4d90188a4f108e0121/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/86/1c8c3e94243446e10000000a114084/frameset.htm
hope this helps.

I need to know thelist of bapi's and function modules used for transaction

I need to know thelist of bapi's and function modules used for transaction in order to use these FM or BAPI in reading some fields of equipment master and functional loocation.Can any one suggest me some methods...or do i need to write a report for the same.

Steps to find the BAPI/function modules used in a transaction
1) Find the package of the transaction thro' SE93.
For example the package for the transaction VA03 is VA
2) Go to Se80, key-in the package (say VA)
3) You can see the function modules under the folder finction group and
you can see the BAPI's under the folder Business Engineering-> Business Objects-> double click on the released methods of the Business Objects

To know thelist of bapi's and function modules used for transaction IH10

I need to know thelist of bapi's and function modules used for transaction in order to use these FM or BAPI in reading some fields of equipment master and functional loocation.Can any one suggest me some methods...or do i need to write a report for the same.

hi,
provide report name (here: RIEQUI20)
goto se38 - utilities - cross reference - function modules
or use report RPR_ABAP_SOURCE_SCAN
with search string call function
A.
Message was edited by:
Andreas Mann

What is the difference between subroutine and function module?

What is the difference between subroutine and function module?

Hi,
they can both return values.
FMs are mainly used when a routine is to be performed by many programs.
Subroutines (forms) are generally only executed within one program.
You can perform routines from other programs, but it's not often done.
both forms and FMs are reusable modularization units.
To distinguish we generally say that forms are used for internal modularization and
FMs are used for external modularization.
To decide on which to implement, consider whether you need the content to be used just for a limited program
or wheteher it can be called from many independent programs.
For the first purpose it is better to implement a form whereas for the second we implement an FM.
However, ABAP does not isolate the usage context.
That is; you can call a form from another program within whose code the form is not actually implemented.
However, this requires attention since the form may utilize global variables.
The same issue holds for FMs.
FMs are encapsulated in function groups and function groups may have global variables that can be globally
used by all FMs inside it.
Thanks,
Reward If Helpful.

Difference between bapi and function module

Can you guys tell me what are the differences in calling bapis and function modules?
I see we are calling both as the same way we call function modules. May be for bapis, we need to be careful in declaring and passing those exact structures. Can you please make it clear reg. the differences between them?
I appreciate it.
Thanks!

HI,
See these links on help.sap.com
For BAPI:
The data entered in the Internet is transferred to the R/3 System via BAPIs (Business Application Programming Interfaces).
Data in the R/3 System is accessed via BAPIs as well.
A Good Site for BAPI's
http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html
http://help.sap.com/saphelp_erp2005/helpdata/en/7c/3ce38765ba11d395fe00a0c94260a5/frameset.htm
For Function Module:
The important use of functional module is it is used by Enhancements.
SAP Enhancements are used to expand the standard functionality within SAP.
Enhancements use function modules and are called from the standard SAP code.
http://help.sap.com/saphelp_erp2005/helpdata/en/41/7af4daa79e11d1950f0000e82de14a/frameset.htm
List of functional modules ( Good Site)
http://www.geocities.com/victorav15/sapr3/abapfun.html
Hope it helps!!!!
Thanks
Sudheer

Tracing Form and Function modules using SE30

Hi,
I want to trace only the Forms and function modules that are executed by a program using SE30. I have tried setting the variants in different ways but it still gives lot of junk information which i dont need. How can I set up the variant so that it only traces Forms and function modules executed by a program?
Will give points to right answer. Thanks for reading

Hi Srikrishna,
First of all create a vraian tin SE30. While creating the variant, in th Tab 'Duratn/Type' select the radio buton 'NONE'. Now execute yur program and then analyse.Select 'GROUP HIT LIST' Icon which gives Function Modules,Subroutines etc.
Regards,
Srinivas.

Function Groups and Function Modules

Hi,
Can anyone give me the detail steps for creating Function Group and then from that function group creation of function module with example?
Regards,
Chandru

Hi,
Function Group creation -
 A function group is a program that contains function modules. With each R/3 system, SAP supplies more than 5,000 pre-existing function groups.
 In total, they contain more than 30,000 function modules. If the functionality you require is not already covered by these SAP-supplied function modules, you can also create your own function groups and function modules.
 We can put all the relevant function modules under one function group and all the global variables can be declared in this FG.
FG Creation:
1) Function group can be created in SE80. There choose the 'Function Group' from the list of objects.
2) Then give a name for ur function group (starts with Y or Z) and press ENTER.
3) The click 'YES' in the create object dialog box and give a short desc. for this FG and save.
Function Module:
 A function module is the last of the four main ABAP/4 modularization units. It is very similar to an external subroutine in these ways:
Both exist within an external program.
Both enable parameters to be passed and returned.
Parameters can be passed by value, by value and result, or by reference.
The major differences between function modules and external subroutines are the following:
Function modules have a special screen used for defining parameters-parameters are not defined via ABAP/4 statements.
tables work areas are not shared between the function module and the calling program.
Different syntax is used to call a function module than to call a subroutine.
Leaving a function module is accomplished via the raise statement instead of check, exit, or stop.
A function module name has a practical minimum length of three characters and a maximum length of 30 characters. Customer function modules must begin with Y_ or Z_. The name of each function module is unique within the entire R/3 system.
Defining Data within a Function Module
Data definitions within function modules are similar to those of subroutines.
Within a function module, use the data statement to define local variables that are reinitialized each time the function module is called. Use the statics statement to define local variables that are allocated the first time the function module is called. The value of a static variable is remembered between calls.
Define parameters within the function module interface to create local definitions of variables that are passed into the function module and returned from it (see the next section).
You cannot use the local statement within a function module. Instead, globalized interface parameters serve the same purpose. See the following section on defining global data to learn about local and global interface parameters.
Defining the Function Module Interface
To pass parameters to a function module, you must define a function module interface. The function module interface is the description of the parameters that are passed to and received from the function module. It is also simply known as the interface. In the remainder of this chapter, I will refer to the function module interface simply as the interface.
To define parameters, you must go to one of two parameter definition screens:
1) Import/Export Parameter Interface
2) Table Parameters/Exceptions Interface
Then in the FM interface screen, give the following
1) Import parameters
2) Export parameters
3) Changing parameters
Then give
1) Define internal table parameters
2) Document exceptions
You enter the name of the parameter in the first column and the attributes of the parameter in the remaining columns. Enter one parameter per row.
Import parameters are variables or field strings that contain values passed into the function module from the calling program. These values originate outside of the function module and they are imported into it.
Export parameters are variables or field strings that contain values returned from the function module. These values originate within the function module and they are exported out of it.
Changing parameters are variables or field strings that contain values that are passed into the function module, changed by the code within the function module, and then returned. These values originate outside the function module. They are passed into it, changed, and passed back.
Table parameters are internal tables that are passed to the function module, changed within it, and returned. The internal tables must be defined in the calling program.
An exception is a name for an error that occurs within a function module. Exceptions are described in detail in the following section.
Syntax for the call function Statement
The following is the syntax for the call function statement.
call function 'F'
 [exporting p1 = v1 ... ]
 [importing p2 = v2 ... ]
 [changing p3 = v3 ... ]
 [tables p4 = it ... ]
 [exceptions x1 = n [others = n]].
where:
F is the function module name.
p1 through p4 are parameter names defined in the function module interface.
v1 through v3 are variable or field string names defined within the calling program.
it is an internal table defined within the calling program.
n is any integer literal; n cannot be a variable.
x1 is an exception name raised within the function module.
The following points apply:
All additions are optional.
call function is a single statement. Do not place periods or commas after parameters or exception names.
The function module name must be coded in uppercase. If it is coded in lowercase, the function will not be found and a short dump will result.
Use the call function statement to transfer control to a function module and specify parameters. Figure 19.9 illustrates how parameters are passed to and received from the function module.
sample FM
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
I_INTERFACE_CHECK = ' '
I_BYPASSING_BUFFER = ' '
I_BUFFER_ACTIVE = ' '
I_CALLBACK_PROGRAM = ' '
I_CALLBACK_PF_STATUS_SET = ' '
I_CALLBACK_USER_COMMAND = ' '
I_CALLBACK_TOP_OF_PAGE = ' '
I_CALLBACK_HTML_TOP_OF_PAGE = ' '
I_CALLBACK_HTML_END_OF_LIST = ' '
I_STRUCTURE_NAME =
I_BACKGROUND_ID = ' '
I_GRID_TITLE =
I_GRID_SETTINGS =
IS_LAYOUT =
IT_FIELDCAT =
IT_EXCLUDING =
IT_SPECIAL_GROUPS =
IT_SORT =
IT_FILTER =
IS_SEL_HIDE =
I_DEFAULT = 'X'
I_SAVE = ' '
IS_VARIANT =
IT_EVENTS =
IT_EVENT_EXIT =
IS_PRINT =
IS_REPREP_ID =
I_SCREEN_START_COLUMN = 0
I_SCREEN_START_LINE = 0
I_SCREEN_END_COLUMN = 0
I_SCREEN_END_LINE = 0
I_HTML_HEIGHT_TOP = 0
I_HTML_HEIGHT_END = 0
IT_ALV_GRAPHICS =
IT_HYPERLINK =
IT_ADD_FIELDCAT =
IT_EXCEPT_QINFO =
IR_SALV_FULLSCREEN_ADAPTER =
IMPORTING
E_EXIT_CAUSED_BY_CALLER =
ES_EXIT_CAUSED_BY_USER =
TABLES
 t_outtab =
EXCEPTIONS
PROGRAM_ERROR = 1
OTHERS = 2
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Example
1 report ztx1905.
2 parameters: op1 type i default 2, "operand 1
3 op2 type i default 3. "operand 2
4 data rslt type p decimals 2. "result
5
6 call function 'Z_TX_DIV'
7 exporting
8 p1 = op1
9 p2 = op2
10 importing
11 p3 = rslt.
12
13 write: / op1, '/', op2, '=', rslt.
Regards,
Shanthi.P
Reward points if useful ****
Edited by: shanthi ps on Jan 26, 2008 12:03 PM

To use SubRoutines and function modules and include

Hellow Friends ,
Can any body suggest me at waht situations we have to use SubRoutines and function modules and include in an abap report and also i need the standards in an abap program.

Hi Rajesh,
You use create subroutines within your programs for those block of codes which are used often within the scope of the development. Function modules are like global subroutines , hence any number programs which might want to use the functionality within the function module can do so.
Creating includes is a good programming prctise, e.g. one for data declerations , one for subroutines, so that it makes the code more reader friendly and also helps in modularizing the program. Also once you put a subroutine in an include, you can use the same subroutine in other programs by referring to the include with the INCLUDE statement in your other programs.
Hence basically they are used for :
1. Reusability
2. Modularization of code (make it more readable)
Hope this is of some help.
Regards,
Aditya

RE:Idoc type and function module

HI All
What are the generic IDoc types and function modules used for the following objects ??We are on SAP R/3 4.7.
Invoice Release (inbound)
Payments (outbound)
Purchase Orders (outbound)
Goods Receipts (outbound)
Cost Centers (outbound)
GL Codes (outbound)
Internal Orders (outbound)
WBS (outbound)
Materials (outbound)
Invoices (inbound)
Invoices Blocked (outbbound)
And How do i judge which IDOC types and function module fit my requirement( I mean what are the things i have to keep in mind while choosing idoc types and function modules)?
Any help will be very much appreciated
Thank you
Steve

Hi Steve...
You can find the IDOC types in Tcode WE30 , WE60.
Invoice Release (inbound)
INVOIC03
Payments (outbound)
Purchase Orders (outbound)
ORDERS03
Goods Receipts (outbound)
ACC_GOODS_MOVEMENT02
Cost Centers (outbound)
GL Codes (outbound)
Internal Orders (outbound)
WBS (outbound)
Materials (outbound)
MATMAS04
Invoices (inbound)
ACC_INVOICE_RECEIPT03
Invoices Blocked (outbbound)
REWARD IF HELPFUL.

When we go for Views and Function Modules for Generic Extraction

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