Basic Questions of ABAP programming

Hi Experts
I am new for ABAP programming. I wants to know some basic about ABAP. I have done 2 months ABAP course from a institute. They give me training on 4.7 IDES ver. Please give the answers of following questions.
1.Is there big difference between 4.7 and 6.0 Ecc ver in ABAP programming point of view?
2.for Traing purpose Should I install the full verson of SAP or there is any dummy software?
3.SAP Netweaver knowledge is must for ABAP programing?
4. When we install SAP 4.7 IDES version then all the modules will avialable or Only ABAP?
Thanks
Best Regards
Jitender

Hello,
For your own practice you can download the free version of SAP Netweaver ABAP in the downloads section of SCN. This is only for ABAP development. You wont find many of the stadard tables and functionalities with in it. IDES should be containing all the modules. But again that depends on the licesnse with which you are provided.
Your questions have no relevance from the ABAP technical point of view except the first one which is a basic question and should be asked here as per the forum rules. Thats the reason why you were suggested to read the forum rules.
For any queries of the trial version ABAP have a look at this forum
Vikranth

Similar Messages

General questions in abap programming

hi
i have some questions in abap.
They are as follows.
1) What you like in SAP and what you don't like?(Interview question)
2) In LSMW please explain about 6th step, maintain fixed values, translations, user defined subroutines?
3) how to create views? ( for example view of three tables in place of using JOIN)
4) Explain with some examples READ statements.
5) explain about events of AT Selection-Screen (7 events) example, when to use.
waiting for ur reply
regards,
maqsood

Hi,
for the first you need to think............. and for the rest below links and details might help you.
2)
http://www.sap-img.com/sap-data-migration.htm
3)
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ec5d446011d189700000e8322d00/content.htm
4)
Reading an Internal Tables
- READ TABLE itab FROM wa [additions].
- READ TABLE itab WITH TABLE KEY k1 = v1 ...kn = vn
[additions].
- READ TABLE itab WITH KEY k1 = v1 ...kn = vn
[BINARY SEARCH] [additions].
- READ TABLE itab INDEX i [additions].
In an ABAP Objects context, a more severe syntax check is performed that in other ABAP areas. See Short forms of line operations not allowed.
Effect
Reads an entry from an DS:ABEN.ITAB>internal table, using either its key or its index. The return code SY-SUBRC specifies whether an entry could be read. If you specify a non-unique key (the table must have a NON-UNIQUE key for this to be valid) , the system returns the entry with the lowest index from the set of entries that meet the condition.
Reading a Line of a List
- READ LINE line.
- READ LINE line OF CURRENT PAGE.
- READ LINE line OF PAGE pag.
- READ CURRENT LINE.
Reading a Program
- READ REPORT prog INTO itab.
Reading Text Elements
- READ TEXTPOOL prog ...INTO itab ...LANGUAGE lg.
Reading File
- READ DATASET dsn INTO f.
Reading a Database Table
- READ TABLE dbtab.
Finding Calendar Information
- in R/2: READ CALENDAR.
5)
http://help.sap.com/saphelp_46c/helpdata/en/fc/eb2d67358411d1829f0000e829fbfe/content.htm
remember to reward points and also close the thread if it helps you
regards,
venu

2 Basic questions

Hai guys,
i am beginner in Webdynpro.i have
2 basic questions in abap webdynpro.
1)after a view is designed,while generating the application,we usualy get a web applicaiton.and use the url to access the developed screen.
can we,alternatively,generate a ABAP transaction instead?(like instead of URL ,we shud get a tcode,like normal abap dynpro)
in other way,i want to develop abap dynpro using webdynpro tools.
2)can we take a webpage,and covert in into meta data and thus,use it to create the view?(the reverse of what we do)

Hello shravan,
Regarding your first question: YES, you can attach a normal ABAP transaction to a WDA application.
Check out this report code I wrote, you just need to change the k_wdappl_name constant value to your application name:
REPORT y_abindi_001.
CONSTANTS: k_browser TYPE string VALUE 'IEXPLORE.EXE',
 k_mandt_prefix TYPE string VALUE '?sap-client=',
 k_wdappl_name TYPE string VALUE 'YTEST_WD2'. "Nombre de la aplicación
DATA: g_mandt_param TYPE string,
 g_url TYPE string.
START-OF-SELECTION.
CONCATENATE
 k_mandt_prefix
 sy-mandt
INTO g_mandt_param.
CALL METHOD cl_wd_utilities=>construct_wd_url
 EXPORTING
 application_name = k_wdappl_name
 IMPORTING
 out_absolute_url = g_url.
CONCATENATE
 g_url
 g_mandt_param
INTO g_url.
CALL METHOD cl_gui_frontend_services=>execute
 EXPORTING
 application = k_browser
 parameter = g_url
 maximized = 'X'
 EXCEPTIONS
 cntl_error = 1
 error_no_gui = 2
 bad_parameter = 3
 file_not_found = 4
 path_not_found = 5
 file_extension_unknown = 6
 error_execute_failed = 7
 synchronous_failed = 8
 not_supported_by_gui = 9
 OTHERS = 10.
IF sy-subrc <> 0.
 WRITE:/,'Error al ejecutar Browser (',k_browser,')'.
ENDIF.
Then attach a report transaction to this program, that's it.
Regards.

Question about using TVARV in an ABAP program

Hello gurus, Im sorry about the silly question.
I have a question about using TVARV in an ABAP program.
A program is presenting a problem and I think that in this code:
SELECT SIGN OPTI LOW HIGH
FROM TVARV
INTO TABLE R_1_163431035_VELOCIDADE
WHERE NAME = '1_163431035_VELOCIDADE'
AND    TYPE = 'S'.
IF ZMM001-VELOCIDADE_B   IN R_1_163431035_VELOCIDADE AND
      ZOPERADORAS-OPERADORA = 'ABCD' AND
      ZMM001-MATERIAL       IN R_1_163431035_PRODUTO.
ELSE.
ENDIF.
What happens is that the value "ZMM001-SPEED" B not exist in "R1_163431035_VELOCIDADE" but the program executes commands under the IF and not under the ELSE, as I imagine it would work. Is this correct ?
I am new to ABAP programming, but I have a lot of XP in other programming languages and this makes no sense to me.
Anyone know where I can find some documentation of the use of "TVARV" in ABAP programs?
I search the Internet if other programmers use TVARV this way, but found nothing, which leads me to think that was a quick and dirty solution that used here.
If this is a bad way to program, what would be the best way?
Regards
Ronaldo.

Hi Ronaldo,
But in this case, the range is not empty, there are 17 records, in this way.:
For the column "SING" all values are "E"
It means that the result is false if ZMM001-VELOCIDADE_B has the same value as one of the 17 records (E = exclude).
For instance, if it has value 'C' and one of 17 records matches C, then the result is false.
The "IF" with "IN" using "TVARV" as used in the program of the post above has the same behavior of a selection screen?
Yes, the same behavior as the selection criterion to be exact. You can press the help key in the complex selection dialog for more info.
I know it's a silly and very basic question, but other language that I used, only the SQL has the "IN" operator, but I think they work in different ways, so I would like to understand how it works in ABAP.
Not silly ;-). Yes they work differently.
More info here:
- http://help.sap.com/saphelp_nw70/helpdata/en/9f/dba74635c111d1829f0000e829fbfe/frameset.htm
- http://help.sap.com/saphelp_nw70/helpdata/en/9f/dba71f35c111d1829f0000e829fbfe/frameset.htm
BR
Sandra

Basic questions with respect to ABAP WebDynpro Application

Hi All,
I have two basic questions with respect to an ABAP WebDynpro application :
a) If an ABAP WebDynpro application has been developed, how could it be made available to the end user?
b) Can an ABAP WebDynpro application be developed in ECC or is it only applicable for version 4.6c?
Thanks & Regards,
Sushanth Hulkod

Sushanth Hulkod wrote:
> a) If an ABAP WebDynpro application has been developed, how could it be made available to the end user?
>
> b) Can an ABAP WebDynpro application be developed in ECC or is it only applicable for version 4.6c?
a) If an ABAP WebDynpro application has been developed, how could it be made available to the end user?
Answer - By providing direct link of the WD application created in SE80, creating iView for webdynpro abap application in the portal environment and NWBC environment
b) Can an ABAP WebDynpro application be developed in ECC or is it only applicable for version 4.6c?
Answer - Yes it can be developed in ECC. Webdynpro ABAP is introduced in NW 2004s (SAP NetWeaver 7.0 or ECC 6.0)
Thanks,
Chandra

Question on security in ABAP program with ITS. Please help!

Hi Experts,
I have a question on security in ABAP program.
I have a ABAP program which has a transaction attached.
I have added authorization check in ABAP program(Progran level security).
I have also attached the authorization object to the transaction.(Transaction level security)
If an end user runs the transactionm, then which authorization check will fire first? Will it be transaction level?
If I have web enabled my ABAP program via SICF (in other words, ITS). Then when I try to run my ITS service in the browser will the transaction level authorization fire? or Will the program level authorization fire?
Please help me understand this security aspect.
Thanks
Gopal

I have added authorization check in ABAP program(Progran level security).
i assume you have coded call authority within the program.
If an end user runs the transactionm, then which authorization check will fire first?
if he calls the transaction, then first authorization attached to the transaction will be checked.
but if he executes the program attached to the transaction, then the authorization attached to the transaction dosent help here, the one coded in side the program is checked.
If I have web enabled my ABAP program via SICF (in other words, ITS).
it depends,
if you are calling your transaction like
webgui/?~transaction=<tcode> then first tcode level authorization.
if you generate the templates for the program and callign the same, then i guess its progam level. (i need to check this)
Regards
Raja

Need information about basic ABAP Programs.

Hi All!
My self is Chandra. Past 2 weeks I am learning ABAP Language, for practices I need some basic examples of ABAP language. pls guide me where I can get this examples.
Thanks,
Chandra.

Hi Chandra,
You can go into these sites and find code examples.
http://www.sapbrain.com
http://www.sap-img.com
http://www.sapgenie.com
SAP Help site which contains topic wise tutorials.
http://help.sap.com.
Award points if useful.
Regds,
Ravi Sankara Kumar.

Process Chain Review Question: function module/ABAP program/Event

Hi,
1. Can you tell me a bit more about function modules such as RSPC_CHAIN_ACTIVATE_REMOTE
2. What are function modules in general terms. i.e. What is their role?
3. How do I see all function module available?
4. When is function module used instead of ABAP program?
5. How do they help in the support and monitoring of Process Chains?
6. I am getting confused over the following under process chains job, event, function module and ABAP Program
Thanks

2. What are function modules in general terms. i.e. What is their role?
Function module return a value ( most of the time), they return some value either a single value of rane of value or even a table. Example: FM to return fiscal period gieven the fiscal vaeiant and system date.
3. How do I see all function module available?
Go to Se37 and this is function builder. You will find FM starting with RS* more useful. You cna also create your own in Se37.
4. When is function module used instead of ABAP program?
In addtion to answer I gave in 3 above, program is used to check some logic and update some tables or give screen output.
You may note FM is also a program.
5. How do they help in the support and monitoring of Process Chains?
As I said, for monitoring chains, use Sm37 and logs in RSPC.
6. I am getting confused over the following under process chains job, event, function module and ABAP Program
I am not clear what are you looking for.
You cna schedule a FM or a program to run in a chain. Is that what you mean?
Ravi Thothadri

Re: Trigger an ABAP program in R/3 by a process chain in BW

This is regarding a previous thread of mine. The basic idea is to trigger an ABAP program in R/3 by a process chain in BW.
1. I created an ABAP program ( lets say P1) in BW ( using SE38 ), and included the code:
CALL FUNCTION 'BP_EVENT_RAISE'
EXPORTING
eventid = 'Y21608_CCNA3PVAR_START'.
There is no variant for the ABAP program.
2. Now, I dragged the process type ABAP code in my process chain, created a variant and gave this program P1 there.
3. I have already created an event in R/3 with the name 'Y21608_CCNA3PVAR_START' ( using SM62 ) and created a job with schedule 'after event', which starts the ABAP programin R/3.
Question: In the process chain, the process is going to the ABAP program but nothing is happening. What more do i include in the ABAP program? And how does this program trigger an event in R/3? Can i use BP_EVENT_RAISE or RSSM_EVENT_RAISE??
Please advise.

Edwin, are we calling a FM which exists in BW or are we calling an FM which exists in R/3 ?
I thought, that the FM used should be in BW but it will trigger an event which has been created in R/3. Is this right? And where in the ABAP prgram can i specify the destination? How do i write this?
Sorry if iam asking u to do the entire job for me:-)

ABAP Programming in BW - advice sought

Hello everyone,
my knowledge in ETL, Reporting etc. Now I would even like to broaden my skills in ABAP programming in BW since I already have little exposure to ABAP. I need some advice on this. I want to be specific & make myself clear here. I do not want any links or websites that teach ABAP. Instead I would appreciate if you could suggest what are the possibilities of implementing ABAP in BW. basically I would like to write some code and implement something small in ABAP on my company's test system thereby enhancing my knowledge in ABAP.
Thanks,
SD

Goto the Tips and Tricks section in transaction SE30, there you will find small snippets of code that perform all the basic ABAP operations. I would also recommend reading up on the BEx User Exit, and Update Rule / Transformations. You can also write little snippets of ABAP in InfoPackages.
If all else fails, goto transactions SE38 and SE37 and look at existing programs and function modules in the system.
Since ABAP is the programming language used by the BW app server, your question is extremely vague, ABAP is everywhere.

ABAP Program documentation -- calling web document

I would like to be able to have my ABAP Program call documentation from the Web when the user presses Shift/F1 or clicks on the Little Blue Information Icon. This is just a basic ABAP - no screen programming. I know how to call my documentation from the Web (see code below). I just don't know how to trigger it to happen. I'm sure it is simple ... can anyone help?
call function 'CALL_BROWSER'
       exporting
            url                                  = http://iww.myweb.com/myhelpdoc.htm'
       exceptions
            frontend_not_supported   = 1
            frontend_error                 = 2
            prog_not_found              = 3
            no_batch                       = 4
            unspecified_error            = 5
            others                           = 6.

I found the answer to my question ...
- Create a New Gui Status called main with Icons for help any whatever else. Call Help one INST
- In the Initialization section of your program code - set pf-status 'MAIN.
- In at selection screen section
case sscrfields-ucomm.
    when 'INST'. "User instructions
      call function 'CALL_BROWSER'
      exporting
      url = http://iww.myweb.com/myhelpdoc.htm'
      exceptions
      frontend_not_supported = 1
      frontend_error = 2
      prog_not_found = 3
      no_batch = 4
      unspecified_error = 5
      others = 6.
      clear sscrfields-ucomm.
endcase.

PHYSICAL FILES FOR ABAP PROGRAM

hi friends
i would like to know are there any physical files on os level for the ABAP programs.for example, when we create a customized report for sales in ABAP does SAP also create a corresponding copy on os level. if yes then in which file system .?
we have ECC 5.0 on AIX & use oracle 9i.
thanks in advance.
regards.

imran mohd wrote:
> hi friends
>
> i would like to know are there any physical files on os level for the ABAP programs.for example, when we create a customized report for sales in ABAP does SAP also create a corresponding copy on os level. if yes then in which file system .?
>
>
> we have ECC 5.0 on AIX & use oracle 9i.
>
> thanks in advance.
>
> regards.
The code you write in ABAP is not stored on OS-level (at least not in an ABAP-stack system) - it's contained in the database. As for the 'copies' your management wishes (for some ambigous reason) to have - there's no need. The code you write is versionised, so that every change made to the code is automatically documented when you press 'Save'.
That was answering a 'basic' question - but you have made me very curious now: would you mind to explain why you would want a 'copy' of your custom code on OS-level? Any special reason??
Edited by: Mylène Dorias on Jun 9, 2010 1:37 PM typo

Function Modules and ABAP programs Where-Used

Hi,
Can anyone teach me on how to check where a function module or ABAP programs have been used? When I click the where-used button, there's nothing found but I know the FM/ABAP programs have been used somewhere.
Thanks.

Hi,
This is very basic question, you simply need to go to transaction SE37 for FM and click on the where used list, in the next popup you will have to make proper selections, e.g. ABAP reports, FM's etc. then it will give you the list of objects where the current object is getting used.
I am not sure whether we will have any where used list for SE38 programs, just check it out.
Regards,
Durgesh.

Function module - basic questions

Hi Experts ,
I wanted to know some basic concepts of the function module :
My question is :
1) What is the "Type ref " in a function module import or export ?
2) An example of a standard function module where type ref is used.
3) What is the use of changing tab ? what do we use this tab for ?
4) An example of a standard function module where a parameter is declared in Changing tab.
5) what is the use of a Exception tab ? is it any thing similar to exceptions in java ?? can you throw the excetion and write a common code in a catch to handle the exception ?
Can anyone help me ?
Regards,
Ashish Shah

Hi
Hi,
Function Modules;
Check this matter.
Function Modules are Glopbal ABAP programs created by SAP for reusable purpose.they have IMPORT,EXPORT and TABLE parameters, and EXCEPTIONS to through when error occurs.
You can create them from TCode SE37.
Go through the following doc:
Function modules are cross-program, reusable procedures that are organized into function groups, and whose functions are implemented between the statements FUNCTION and ENDFUNCTION. Function modules and their interfaces are created in the Function Builder.
Function Module Interfaces
The parameter interface of a function module is defined in the Function Builder. It includes the definition of interface parameters and the specification of exceptions that can be triggered by a function module. The Function Builder automatically generates comment lines below the FUNCTION statement in the source code of the function module, which represent the interface of the function module with the following syntax:
Syntax
... [IMPORTING parameters]
[EXPORTING parameters]
[CHANGING parameters]
[TABLES table_parameters]
[{RAISING|EXCEPTIONS} exc1 exc2 ...]
The syntax and semantics of IMPORTING, EXPORTING, CHANGING, RAISING, and EXCEPTIONS mainly correspond to the definition of method interfaces with [CLASS-]METHODS. The additional option of defining table parameters using TABLES is obsolete.
Interface parameters
The interface parameters are defined on the relevant tab pages in the Function Builder.
IMPORTING parameters are input parameters. When the function module is called, a suitable actual parameter must be specified for every non-optional input parameter. The content of the actual parameter is passed to the input parameter when the call is made. The content of an input parameter for which 'pass by reference' is defined cannot be changed in the function module.
EXPORTING parameters are output parameters. When the function module is called, a suitable actual parameter can be specified for every output parameter. The content of an output parameter that is defined for 'pass by value' is transferred to the actual parameter if the function module is completed without errors. An output parameter that is defined for pass by reference is not initialized when the function module is called.
CHANGING parameters are input and output parameters. When the function module is called, a suitable actual parameter must be specified for every non-optional input or output parameter. When the function module is called, the content of the actual parameter is passed to the input/output parameter, and when the function module is completed, the content of the input/output parameter is passed to the actual parameter.
TABLES parameters are table parameters. Table parameters are obsolete CHANGING parameters that are typed as standard tables with a header line. If an internal table without a header line or a table body is passed as an actual parameter to a formal parameter of this type, an empty local header line is generated in the function module. If an internal table with a header line is used as an actual parameter, both the table body and the header line are passed to the function module. Pass by value is not possible in formal parameters defined using TABLES. Formal parameters defined with TABLES can be replaced by formal parameters defined with CHANGING. A local work area can be created for the internal table in the function module by using the addition LIKE LINE OF itab of the DATA statement.
Exceptions
The exception of a function module are defined on the Exceptions tab page in the Function Builder. Here you can select exception classes to define whether class-based exceptions are declared or non-class-based exception are defined. Class-based exceptions are represented in the above syntax by RAISING, and non-class-based exceptions are represented by EXCEPTIONS.
The addition RAISING is used to declare class-based exceptions that can be propagated from the function module to the caller. Exceptions in the categories CX_STATIC_CHECK and CX_DYNAMIC_CHECK must be explicitly declared, otherwise a propagation can lead to an interface violation. A violation of the interface leads to the treatable exception CX_SY_NO_HANDLER. Exceptions of the category CX_NO_CHECK are implicitly always declared. The declaration of exceptions of the category CX_STATIC_CHECK is statically checked in the syntax check. For exceptions of the category CX_DYNAMIC_CHECK, the check is not performed until runtime. In a function module in which class-based exceptions are declared with the RAISING addition, the statement CATCH SYSTEM-EXCEPTIONS cannot be used. Instead, the relevant treatable exceptions should be handled in a TRY control structure.
The addition EXCEPTIONS is used to define a list of non-class-based exceptions that can be triggered in the function module using the statements RAISE or MESSAGE RAISING. Exceptions defined in this way - as with formal parameters - are bound to the function module and cannot be propagated. If an exception of this type is triggered in a function module, and no return value has been assigned to it with the homonymous addition EXCEPTIONS of the CALL FUNCTION statement when the call was made, this leads to a runtime error.
Note
For new developments after release 6.10, SAP recommends that you work with class-based exceptions that are independent of the function module.
RFC is a technology which is used to access a functions (Modules) from
the remote systems.
If a function module is set as remote enabled which can be access from
the remote system via RFC.Eg: U can access the Remote enabled function modules in ur VB,Webdynpro,Java,Visual composer program.
A function module can be set as remote enabled by SE37->Go to ur FM->click the option Button "remote enabled".
But Normal function modules can not accessd from the remote system.
Good Example for RFC enabled function module is : BAPI(Business Application Programming Interface)
Note: All BAPIs are Remote enabled but not all remote enabled function modules are BAPI.
CALLING A FUNCTION MODULE:
1)In U ABAP Editor --> Click "Patter" ---> Selection Option Button "Call Function"
--> Write the Corresponding FM name --> Hit Enter
2)The appropriate import ,export Parameters will be displayed in ur editor
3)Pass the Values Here.
Also check these links.
Check this link:
http://help.sap.com/saphelp_erp2004/helpdata/en/9f/db988735c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/ef/d94b78ebf811d295b100a0c94260a5/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
Check this link:
http://help.sap.com/saphelp_erp2004/helpdata/en/9f/db988735c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/ef/d94b78ebf811d295b100a0c94260a5/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
See the following links:
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005vp/helpdata/en/9f/db970e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/26/64f623fa8911d386e70000e82011b8/content.htm
Regards,
Sree

Which SAP table stores the ABAP program Source Code

Hi All,
Which SAP table stores the ABAP source code .
Is it possible to retrieve the abap program code from database table
wherein it is stored .
Scenario :
In our project SAP got decommissioned and SAP database is migrated to Oracle . As SAP is decomissioned , we are not able to access the SAP frontend . But we need a program code to service a request . Is it possible to retrieve the program code from the database
which is migrated to oracle .
Thanks
Shikha

This is an interesting question as the answer is may be different depending on your version. For example, in new releases the table REPOSRC appears to hold a compress version of the course code in the DATA field, but you would need to be able to decompress it if trying to read this directly out of the DB. I would assume that it uses gZip to do the compression, and there are ABAP utilities built in to do the compress/decompress. Of course you can always read the source code by using the READ REPORT statement in any release, but of course this will not help you if you can not log on to your system. Basically, if you system is corrupt for some reason, the best option is to restore from a backup.
REgards,
Rich Heilman

Basic Questions of ABAP programming

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