What is the difference between function groups and Object Orientation

Hello all
I have read about this on the help.sap.com site, I still do not understand it completely, can some one explain me with a simple example please ? (Not the increment counter example please !).
Thanks a ton.
Rgds
Sameer

Hello Sameer
When you call a module of a function group for the first time in your program then the entire function group is loaded. However, this can happen only once within your report and all global variables within the function group will have the same values all the time (except they are manipulated via fm's).
In contrast, you can create as many instances of the same class as you want and all of them can have different global attributes. And all these instances are independent of each other.
On the other hand, if fm_A changes global attributes of the function group and fm_B reads these attributes then fm_B read the changed values.
Or in other words:
Function Group = can be instantiated only ONCE
Class = can be instantiated unlimited
Regards
Uwe

Similar Messages

WHAT IS THE DIFFERENCE BETWEEN PHRASE GROUP AND PHRASE SET?

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Hi Ramya,
Definition of a Phrase group is a number of phrases contained in a phrase library grouped according to logical criteria. A phrase can be assigned to only one phrase group.
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Hi Experts,
What are the differences between ECC5.0 and 6.0 new GL functionality.
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Hi Friends
What is the difference between Category Mgmt and Spend Analysis?
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Hi Chinna
Here are my two cents on this questions
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What's the difference between segment filtering and reduced message type

Hi gurus,
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Thanks in advance.

Hi,
BD53 is for IDoc Reduction.
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there mandatory fields will be in Green color..
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http://wiki.sdn.sap.com/wiki/display/ABAP/ReducedMessageTypes
http://saptotal.com/IDoc%20Segment%20Filtering.html
regards,
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What's the difference between gnome, kde and xfce?

What's the difference between gnome, kde and xfce? Today I heard someone said gnome and kde have more software than xfce. Is that real?
Thank you.
Last edited by thesimpsons (2009-04-02 01:50:28)

Its really a matter of taste, really. KDE is know to be configurable like hell, GNOME very easy to use, and XFCE lightweitgh.
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KDE is slower to start on my EeePC (really small machine) but because it is full featured, I can cut on number of packages installed, so in the end, with the same functionality, I have more room on my disk then using XFCE!
Just try them, and choose the one you like

What's the difference between transport route and transport layer

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Hi,
Transport Layer in ABAP Workbench
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Use
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and transport layer.
When you create a package, it is assigned the standard transport layer
of the SAP System.
If you want to assign a different transport layer to a package, you
require the administration authorization for the Change and Transport
System.
The objects in a package automatically have the transport attributes
defined for the corresponding transport layer.
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Customizing settings are not assigned to a package. They have the
transport attributes of the standard transport layer of the system or
client.
It is best to assign a package a standard transport layer for which a
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To display and maintain the transport layers and routes, use the
Transport Management System (transaction STMS).
Only the system adminstrator can make changes.
Caution:
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Regards
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What's the difference between FM 'UPLOAD' and FM 'ALSM_EXCEL_TO_INTERNAL_T'

What's the difference between FM 'UPLOAD' and FM 'ALSM_EXCEL_TO_INTERNAL_TABLE'
thanks!

hi,
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for illustration as how it is used check this out
PARAMETER p_infile like rlgrap-filename.
*START OF SELECTION
call function 'ALSM_EXCEL_TO_INTERNAL_TABLE'
       exporting
            filename                = p_infile
            i_begin_col             = '1'
            i_begin_row             = '2' "Do not require headings
            i_end_col               = '14'
            i_end_row               = '31'
       tables
            intern                  = itab
       exceptions
            inconsistent_parameters = 1
            upload_ole              = 2
            others                  = 3.
if sy-subrc <> 0.
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endif.
http://www.sapdevelopment.co.uk/file/file_upexcelalt2.htm
CALL FUNCTION 'GUI_UPLOAD'
    EXPORTING
      filename                = gd_file
      has_field_separator     = 'X' "file is TAB delimited
    TABLES
      data_tab                = it_record
    EXCEPTIONS
      file_open_error         = 1
      file_read_error         = 2
      no_batch                = 3
      gui_refuse_filetransfer = 4
      invalid_type            = 5
      no_authority            = 6
      unknown_error           = 7
      bad_data_format         = 8
      header_not_allowed      = 9
      separator_not_allowed   = 10
      header_too_long         = 11
      unknown_dp_error        = 12
      access_denied           = 13
      dp_out_of_memory        = 14
      disk_full               = 15
      dp_timeout              = 16
      OTHERS                  = 17.
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      write: 'Error ', sy-subrc, 'returned from GUI_UPLOAD FM'.
      skip.
    endif.
http://www.sapdevelopment.co.uk/file/file_uptabpc.htm
Regards,
Santosh

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What's the difference between "My Contacts" and "All Contacts"?
I have no other account other then my iCloud account (from what I can tell), but "My Contacts" has a significantly smaller number of contacts then "All Contacts".
What's the difference?

Thanks for posting the screenshots, that's helpful. I didn't realize that you were looking at your groups.
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If you don't have any use for the "My Contacts" group, you can delete it by clicking on it on the left sidebar, click the gear icon on the lower left and choose Delete. If you're concerned about doing this, you can make a backup of this group first by selecting it on the left sidebar, clicking on a single contact within the group, pressing Control-A to select them all (they should all be highlighted), then clicking the gear icon and choosing Export vCard. This will create a .vcf file that can later be imported back to iCloud if you ever need to (by clicking the gear icon again and choosing Import vCard).

What is the difference between PSE 8 and 9

I was wondering what is the difference between PSE 8 and 9 and are the enhancements worth upgrading to PSE 9?

iOS is the operating system for mobile devices such as iPhones, iPads, and iPods), as well as AppleTV. Mavericks is the current operating system for Macs (laptops and desktop computers). Yosemite is its newest iteration, currently in beta and due for release in the next few weeks.
If you are looking for something more specific concerning functionality, you will have to be more specific with your question.

What is the difference between interactive report and alv interactive repor

what is the difference between interactive report and alv interactive report
could u plz explain clearly.

Hi Rajesh,
interactive report or alv interactive report , both are same but except the viewer, Abap List Viewer (ALV).
Here in i am placing a sample simple ALV Interactive report.
Just double click on the customer number to go to the next screen.
*& Report ZKAL_ALV_INTERACTIVE_1                                      *
REPORT ZKAL_ALV_INTERACTIVE_1                  .
TYPE-POOLS: SLIS.
TYPES: BEGIN OF TY_KNA1,
          KUNNR TYPE KUNNR,
          NAME1 TYPE NAME1,
          ORT01 TYPE ORT01,
        END OF TY_KNA1.
TYPES: BEGIN OF TY_VBAK,
          VBELN TYPE VBELN,
          ERNAM TYPE ERNAM,
          ERDAT TYPE ERDAT,
          NETWR TYPE NETWR,
          WAERK TYPE WAERK,
         END OF TY_VBAK.
&--WORK AREA & TABLE DECLARATION--
DATA: W_KNA1 TYPE TY_KNA1.
DATA: T_KNA1 TYPE STANDARD TABLE OF TY_KNA1 INITIAL SIZE 1.
DATA: W_VBAK TYPE TY_VBAK.
DATA: T_VBAK TYPE STANDARD TABLE OF TY_VBAK INITIAL SIZE 1.
&--FIELDCAT TABLE & WORK AREA--
DATA: W_FCAT TYPE SLIS_FIELDCAT_ALV.
DATA: T_FCAT TYPE SLIS_T_FIELDCAT_ALV.
DATA: W_FCAT1 TYPE SLIS_FIELDCAT_ALV.
DATA: T_FCAT1 TYPE SLIS_T_FIELDCAT_ALV.
&--EVENT TABLE AND WORK AREA--
DATA: W_EVENTS TYPE SLIS_ALV_EVENT.
DATA: T_EVENTS TYPE SLIS_T_EVENT.
DATA: W_EVENTS1 TYPE SLIS_ALV_EVENT.
DATA: T_EVENTS1 TYPE SLIS_T_EVENT.
&--COMMENT TABLE & WORK AREA--
DATA: W_COMMENT TYPE SLIS_LISTHEADER.
DATA: T_COMMENT TYPE SLIS_T_LISTHEADER.
DATA: W_COMMENT1 TYPE SLIS_LISTHEADER.
DATA: T_COMMENT1 TYPE SLIS_T_LISTHEADER.
&----APPENDING FCAT -
W_FCAT-COL_POS = 1.
W_FCAT-FIELDNAME = 'KUNNR'.
W_FCAT-SELTEXT_M = 'CUST. NO'.
W_FCAT-HOTSPOT = 'X'.            "HOT SPOT HAND SYMBOL
W_FCAT-EMPHASIZE = 'C119'.       "FOR COLORING THE COLUMN 1
APPEND W_FCAT TO T_FCAT.
CLEAR W_FCAT.
W_FCAT-COL_POS = 2.
W_FCAT-FIELDNAME = 'NAME1'.
W_FCAT-SELTEXT_M = 'CUST. NAME'.
APPEND W_FCAT TO T_FCAT.
W_FCAT-COL_POS = 3.
W_FCAT-FIELDNAME = 'ORT01'.
W_FCAT-SELTEXT_M = 'CITY'.
APPEND W_FCAT TO T_FCAT.
W_FCAT1-COL_POS = 1.
W_FCAT1-FIELDNAME = 'VBELN'.
W_FCAT1-SELTEXT_M = 'ORDER NO'.
W_FCAT1-EMPHASIZE = 'C519'.
APPEND W_FCAT1 TO T_FCAT1.
CLEAR W_FCAT.
W_FCAT1-COL_POS = 2.
W_FCAT1-FIELDNAME = 'ERNAM'.
W_FCAT1-SELTEXT_M = 'NAME OF PARTY'.
APPEND W_FCAT1 TO T_FCAT1.
W_FCAT1-COL_POS = 3.
W_FCAT1-FIELDNAME = 'ERDAT'.
W_FCAT1-SELTEXT_M = 'DATE'.
APPEND W_FCAT1 TO T_FCAT1.
W_FCAT1-COL_POS = 4.
W_FCAT1-FIELDNAME = 'NETWR'.
W_FCAT1-SELTEXT_M = 'ORDER VALUE'.
APPEND W_FCAT1 TO T_FCAT1.
W_FCAT1-COL_POS = 5.
W_FCAT1-FIELDNAME = 'WAERK'.
W_FCAT1-SELTEXT_M = 'CURRENCY'.
APPEND W_FCAT1 TO T_FCAT1.
&--APPEND COMMENTRY--
W_COMMENT-TYP = 'H'.
W_COMMENT-INFO = 'CUSTOMER DETAILS'.
APPEND W_COMMENT TO T_COMMENT.
CLEAR W_COMMENT.
&--APPEND EVENTS TABLE--
W_EVENTS-NAME = 'TOP_OF_PAGE'.
W_EVENTS-FORM = 'TOPPAGE'.
APPEND W_EVENTS TO T_EVENTS.
W_EVENTS-NAME = 'USER_COMMAND'.
W_EVENTS-FORM = 'SUB2'.
APPEND W_EVENTS TO T_EVENTS.
W_EVENTS1-NAME = 'TOP_OF_PAGE'.
W_EVENTS1-FORM = 'TOPPAGE1'.
APPEND W_EVENTS1 TO T_EVENTS1.
CLEAR W_EVENTS1.
W_EVENTS1-NAME = 'USER_COMMAND'.
W_EVENTS1-FORM = 'SUB3'.
APPEND W_EVENTS1 TO T_EVENTS1.
SELECT-OPTIONS: CUSTNO FOR W_KNA1-KUNNR.
SELECT KUNNR
         NAME1
         ORT01 FROM KNA1 INTO TABLE T_KNA1
         WHERE KUNNR IN CUSTNO.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
   I_CALLBACK_PROGRAM                = 'ZKAL_ALV_INTERACTIVE_12'
   I_BACKGROUND_ID                   = 'BIKE'
   I_GRID_TITLE                      = 'CUSTOMER DETAILS'
   IT_FIELDCAT                       = T_FCAT
   IT_EVENTS                         = T_EVENTS
TABLES
    T_OUTTAB                          = T_KNA1 .
FORM TOPPAGE.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      IT_LIST_COMMENTARY       = T_COMMENT
     I_LOGO                   = 'LOGO_ALV'.
ENDFORM. "END OF TOPPAGE SUB.
FORM SUB2 USING UCOMM LIKE SY-UCOMM FIELDS1 TYPE SLIS_SELFIELD.
READ TABLE T_KNA1 INTO W_KNA1 INDEX FIELDS1-TABINDEX.
SELECT VBELN
         ERNAM
         ERDAT
         NETWR
         WAERK
               FROM VBAK
               INTO TABLE T_VBAK
               WHERE KUNNR = W_KNA1-KUNNR.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
   I_CALLBACK_PROGRAM                = 'ZKAL_ALV_INTERACTIVE_12'
   I_BACKGROUND_ID                   = 'KALEEM'
   I_GRID_TITLE                      = 'LIST OF ORDERS'
   IT_FIELDCAT                       = T_FCAT1
   IT_EVENTS                         = T_EVENTS1
TABLES
    T_OUTTAB                          = T_VBAK.
ENDFORM.    "END OF SUB2.
FORM TOPPAGE1.
&--APPEND COMMENTRYOF SECONDRY SCREEN--
W_COMMENT1-TYP = 'H'.
W_COMMENT1-INFO = 'LIST OF ORDERS'.
APPEND W_COMMENT1 TO T_COMMENT1.
W_COMMENT1-TYP = 'S'.
W_COMMENT1-KEY = 'CUSTOMER'.
W_COMMENT1-INFO = W_KNA1-KUNNR.
APPEND W_COMMENT1 TO T_COMMENT1.
CLEAR W_COMMENT.
W_COMMENT1-TYP = 'A'.
W_COMMENT1-INFO = W_KNA1-NAME1.
APPEND W_COMMENT1 TO T_COMMENT1.
CLEAR W_COMMENT1.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      IT_LIST_COMMENTARY       = T_COMMENT1
     I_LOGO                   = 'LOGO_ALV'
REFRESH T_COMMENT1.
ENDFORM.    "END OF TOPPAGE1
FORM SUB3 USING UCOMM LIKE SY-UCOMM FIELDS1 TYPE SLIS_SELFIELD.
    READ TABLE T_VBAK INTO W_VBAK INDEX FIELDS1-TABINDEX.
SET PARAMETER ID 'AUN' FIELD W_VBAK-VBELN.
CALL TRANSACTION 'VA02' AND SKIP FIRST SCREEN.
ENDFORM.
U can also find some of the useful codes on WIKI-SDN.
Reward helpful Answers.
Regds,
Kaleem.

What is the difference between smart forms and scripts.?

what is the difference between smart forms and scripts.?

Differences between Smartforms and SAPscript
a) Multiple page formats are possible in smartforms which is not the case in SAPScripts
b) It is possible to have a smartform without a main window .
c) Routines can be written in smartforms tool.
d) Smartforms generates a function module when activated.
e) Smartforms can create web enable forms like XML
f) smartforms itself contine subroutine pools need not to main separetly like in case of scripts
Request you to refer the following links
www.sap-img.com/smartforms/smartform-sapscripts.htm
www.erpgenie.com/abap/smartforms_sapscript.htm
Sapscript vs Smartforms
Difference with SMARTFORMS vs. SapScript(SE71)
The Following are the differences :-
a) Multiple page formats are possible in smartforms which is not the case in SAPScripts
b) It is possible to have a smartform without a main window .
c) Labels cannot be created in smartforms.
d) Routines can be written in smartforms tool.
e) Smartforms generates a function module when activated
Scripts are client dependent whereas smartforms aren't.
Upto 99 main windows are possible in scripts and only one in smarforms.
To create multiple main windows in scripts, you just have to give the window type as MAIN whnever you create a window.
Scripts still exists but smartforms are in use from 4.6c version, now the lastest version of these two is adobe forms
SAP Smart Forms is introduced in SAP Basis Release 4.6C as the tool for creating and maintaining forms.SAP Smart Forms allow you to execute simple modifications to the form and in the form logic by using simple graphical tools; in 90% of all cases, this won't include any programming effort. Thus, a power user without any programming knowledge can
configure forms with data from an SAP System for the relevant business processes.
Advantages of SAP Smart Forms
SAP Smart Forms have the following advantages:
1. The adaptation of forms is supported to a large extent by graphic tools for layout and logic, so that no programming knowledge is necessary (at least 90% of all adjustments). Therefore, power user forms can also make configurations for your business processes with data from an SAP system. Consultants are only required in special cases.
2. Displaying table structures (dynamic framing of texts)
3. Output of background graphics, for form design in particular the use of templates which were scanned.
4. Colored output of texts
5. User-friendly and integrated Form Painter for the graphical design of forms
6. Graphical Table Painter for drawing tables
7. Reusing Font and paragraph formats in forms (Smart Styles)
8. Data interface in XML format (XML for Smart Forms, in short XSF)
9. Form translation is supported by standard translation tools
10. Flexible reuse of text modules
11. HTML output of forms (Basis release 6.10)
12. Interactive Web forms with input fields, pushbuttons, radio buttons, etc. (Basis-Release 6.10)
Reward Points if useful.

What is the difference between undo tablespace and online redo log files.

what is the difference between undo tablespace and online redo log files. I am confused
as per my knowledge undo tablespace is used to store the undo information when a table is being updated so that, just incase we need to rollback a transaction we know what was present in the table earlier.
when a transaction fails the SMON performs the rollback of the data.
This undo data is stored in the undo tablespace and read consistency if any is enforced.
is my understanding till here correct?
Now, can this undo data/before image not be stored in the redo log buffer and online redolog files?
can redo-log files not store this information?
in fact, is it that when undo tablespaces exist in a database, the undo data/before image is stored in both the undo tablespace and also the redo log files?
kindly clarify my doubt.
thank you.

This question has been asked many times before. The answer is always the same.
Yes, redo contains the before image of data (and the after-image). Therefore, it **COULD** be used to roll back a transaction.
BUT... Redo is written sequentially. Using it to rollback your transaction would involve reading through all the redo written by maybe thousands of other people. It would be painfully slow.
Your transaction is, however, directly linked to just the UNDO that it generates (which is JUST the before image of the data). So, your undo is your undo and doesn't share space with anyone else's undo. Therefore, using it to roll back YOUR transaction is fast.
The fact that undo is only the before image of the data also makes it faster than wading through a sea of before and AFTER images as you'd find in redo. About twice as fast, in fact, since there's half the data. Roughly.
Redo also gets written and flushed to disk whenever there's a commit, 3 seconds are up or too much (1MB, actually) redo gets generated between flushes caused by other factors. Your redo gets flushed when those things happen, even if you haven't actually committed your transaction. And redo logs recycle themselves, meaning that your redo -even if your transaction hasn't been committed yet- can be over-written by later transactions. Try rolling back when that's happened, if redo was the source of your rollback data!
Undo, however, cannot be over-written if the transaction has not been committed. Ever. If you don't commit for three years, there will be three years' undo stored in your database (assuming you had the space, of course!).
I could go on, but that will do. Redo is there fore RECOVERY, after catastrophe. Undo is there for read-consistency (and the occasional change of mind). Two different functions. Two different mechanisms. Each one highly tuned to doing what it does, why it does it, most efficiently and effectively.

What is the difference between standard,sorted and hash table

<b>can anyone say what is the difference between standard,sorted and hash tabl</b>

Hi,
Standard Tables:
Standard tables have a linear index. You can access them using either the index or the key. If you use the key, the response time is in linear relationship to the number of table entries. The key of a standard table is always non-unique, and you may not include any specification for the uniqueness in the table definition.
This table type is particularly appropriate if you want to address individual table entries using the index. This is the quickest way to access table entries. To fill a standard table, append lines using the (APPEND) statement. You should read, modify and delete lines by referring to the index (INDEX option with the relevant ABAP command). The response time for accessing a standard table is in linear relation to the number of table entries. If you need to use key access, standard tables are appropriate if you can fill and process the table in separate steps. For example, you can fill a standard table by appending records and then sort it. If you then use key access with the binary search option (BINARY), the response time is in logarithmic relation to
the number of table entries.
Sorted Tables:
Sorted tables are always saved correctly sorted by key. They also have a linear key, and, like standard tables, you can access them using either the table index or the key. When you use the key, the response time is in logarithmic relationship to the number of table entries, since the system uses a binary search. The key of a sorted table can be either unique, or non-unique, and you must specify either UNIQUE or NON-UNIQUE in the table definition. Standard tables and sorted tables both belong to the generic group index tables.
This table type is particularly suitable if you want the table to be sorted while you are still adding entries to it. You fill the table using the (INSERT) statement, according to the sort sequence defined in the table key. Table entries that do not fit are recognised before they are inserted. The response time for access using the key is in logarithmic relation to the number of
table entries, since the system automatically uses a binary search. Sorted tables are appropriate for partially sequential processing in a LOOP, as long as the WHERE condition contains the beginning of the table key.
Hashed Tables:
Hashes tables have no internal linear index. You can only access hashed tables by specifying the key. The response time is constant, regardless of the number of table entries, since the search uses a hash algorithm. The key of a hashed table must be unique, and you must specify UNIQUE in the table definition.
This table type is particularly suitable if you want mainly to use key access for table entries. You cannot access hashed tables using the index. When you use key access, the response time remains constant, regardless of the number of table entries. As with database tables, the key of a hashed table is always unique. Hashed tables are therefore a useful way of constructing and
using internal tables that are similar to database tables.
Regards,
Ferry Lianto

(261680070) Q WWO-13 What are the difference between WLS6.1 and WLS7.0 web services?

Q<WWO-13> What are the difference between WLS6.1 and WLS7.0 web services?
A<WWO-13> The differences are huge, so different in fact that 6.1 web services cannot
be deployed in 7.0. WLS7.0 and Workshop have much greater functionality than the
limited stateless session (RPC-style) and JMS destination (MSG-style) approach of
6.1. Workshop web services can interact with any type of EJB, any JMS destination
as well as other web services and directly accessing databases. The framework for
building the web service is better and more adaptable and Workshop provides a fully
integrated develop, deploy, test and debug environment. Additionally, WLS7.0 have
the capacity to be much better at performance since due to XML parser enhancements
and the addition of XML maps.

If you want to take existing WLS6.1 web services and convert them to WLS7.0 you can
do so quite easily. The WLS7.0 Ant still supports wsgen so you do not need to even
change your build.xml file. The generated web service however will be implemented
is a manner compliant with the WLS7.0 environment. More details are at:
http://e-docs.bea.com/wls/docs70/webServices/anttasks.html#1070576
"Adam FitzGerald" <[email protected]> wrote:
>
Q<WWO-13> What are the difference between WLS6.1 and WLS7.0 web services?
A<WWO-13> The differences are huge, so different in fact that 6.1 web services
cannot
be deployed in 7.0. WLS7.0 and Workshop have much greater functionality
than the
limited stateless session (RPC-style) and JMS destination (MSG-style) approach
of
6.1. Workshop web services can interact with any type of EJB, any JMS destination
as well as other web services and directly accessing databases. The framework
for
building the web service is better and more adaptable and Workshop provides
a fully
integrated develop, deploy, test and debug environment. Additionally, WLS7.0
have
the capacity to be much better at performance since due to XML parser enhancements
and the addition of XML maps.

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