Modify DB by single field using Field Symbol

Hi,
please help me ,actually i have not use the field symbol in any object. i have one requirement ,i have to modify the DB by field STATUS using Field symbol ,
I am sending u my code so please help me how can i modify DB using field symbol..
          gw_msg3_status1   = k_status1 .
          LOOP AT gi_msg3 INTO gs_msg3.
            gs_msg3-status = gw_msg3_status1 .
            gs_msg3-issue   = lw_issuno.
       MODIFY gi_msg3 FROM gs_msg3 TRANSPORTING status.
            MODIFY gi_msg3 INDEX sy-tabix FROM gs_msg3 TRANSPORTING issue status.
          ENDLOOP.
Thanks & Regards,
Meenakshi

perform dboperation_table using 'SET' 'BIRTHDT' '=' <fs>.
    perform dboperation_table using 'WHERE' 'PARTNER' '=' <fs>
    perform dboperation_update using 'BUT000'.
form dboperation_table
using p_type
      p_var1
      p_var2
      p_var3.
data: t_l type cmst_str_data.
data: d_cx_root            type ref to cx_root,
        d_text               type string.
try.
      clear t_l.
      if p_var3 is not initial.
        t_l = p_var3.
        condense t_l.
        concatenate '''' t_l '''' into t_l.
      endif.
      concatenate p_var1 p_var2 t_l into t_l
      separated by space.
      case p_type.
        when 'SET'.   append t_l to g_s_t.
        when 'WHERE'. append t_l to g_w_t.
      endcase.
    catch cx_root into d_cx_root.
      d_text = d_cx_root->get_text( ).
      message a398(00) with d_text.
endtry.
endform.                    "DBOPERATION_table
form dboperation_update
using p_tabname type zdboperation-tabname.
data: tabname type bus_table.
data: d_cx_root            type ref to cx_root,
        d_text               type string.
try.
      tabname-tabname = p_tabname.
      call function 'ZDBOPERATION_UPDATE'
        in update task
        exporting
          tabname     = tabname
        tables
          where_table = g_w_t
          set_table   = g_s_t.
    catch cx_root into d_cx_root.
      d_text = d_cx_root->get_text( ).
      message a398(00) with d_text.
endtry.
endform.                    "DBOPERATION_update
Hope it will help you.
Regards,
Madan.

Similar Messages

How to display the fields using field catelog in ALV Report

Hi,
I have rquiremrnt in ALV report.I would need to add the new fileld in the ALV output screen.I have added the field but its appearing in the layout set but not directly displaying in the output screen.
I have written the below logic for field catelog.
CLEAR wa_fieldcatalog.
wa_fieldcatalog-fieldname   = 'LOGGR'.
wa_fieldcatalog-ref_tabname = 'MARC'.
wa_fieldcatalog-col_pos     = l_pos.
wa_fieldcatalog-outputlen   = 13.
   wa_fieldcatalog-seltext_s   = 'Log. group'.
wa_fieldcatalog-seltext_m   = 'Logistics group'.
wa_fieldcatalog-seltext_l   = 'Log. handling group'.
   wa_fieldcatalog-reptext_ddic = 'Log. handling group'.
APPEND wa_fieldcatalog TO it_fieldcatalog.
l_pos = l_pos + 1.
Please let me know why the added field was not displaying automaticaly in the output screen.
Regards,
Reddy

hi,
         try this
clear wa_fieldcatalog.
wa_fieldcat-tabname       = 'ITAB' ( give the internal table which has the field LOGGR)
wa_fieldcatalog-fieldname = 'LOGGR'.
wa_fieldcatalog-ref_tabname = 'MARC'.
wa_fieldcatalog-col_pos = l_pos.
wa_fieldcatalog-outputlen = 13.
wa_fieldcatalog-seltext_s = 'Log. group'.
wa_fieldcatalog-seltext_m = 'Logistics group'.
wa_fieldcatalog-seltext_l = 'Log. handling group'.
wa_fieldcatalog-reptext_ddic = 'Log. handling group'.
APPEND wa_fieldcatalog TO it_fieldcatalog.
l_pos = l_pos + 1.

Count field using fields at another tables

Hi. I have invoice and deliveries:
Create table Invoices (
InvoiceID number primary key,
OrganizationName varchar2(30),
InvoiceDate date,
TotalPrice money
Create table Deliveries (
InvoiceID number,
ProductName varchar2(30),
ProductPrice money,
Amount number,
Second table has information about products with in invoice.
I would like not to count all Products:
Select InvoiseID ,COUNT(ProductPrice*Amount) as "Total invoice Price"
From somewhere
Where something has the same InvoiceID
Group by invoiceID
I want it to count automaticlly and put it in TotalPrice field. How can I do it?

some notes...
Create or replace Procedure CountInvoiceSums IS
begin
cursor c1 is
select *
from Invoices;
records number;
records=(select COUNT(*) from Invoices);
invoiceN varchar2(5);
for j 1..records
LOOP
--get invoice name:
invoiceN=
--change invoice Total price for
(select SUM(ProductPrice*Amount)
from Products p
where p.INVOICENAME=invoiceN)
END LOOP
end;
--=========================================
Create or replace trigger InvoiceTotalPrice
after update of ProductPrice on Products
call CountInvoiceSums;
Am I on the right way? If I am, I have 2 questions:
1)how to edit field in j record? delete old the add new?
2)how to get field in j record?
Thanks in advance.
P.S. please just advice not make for me, i want to lean it myself.

How to use field-symbols in MODIFY ... TRANSPORTING and SORT

Hi,
I need to increase the performance of an abap report using the field-symbols. More exactly the code is the following.
TYPES:
BEGIN OF itab_structure.
     INCLUDE STRUCTURE nameofstructure.
TYPES:
     RECNO   LIKE sy-tabix,
END OF itab_structure.
DATA:
itab TYPE STANDARD TABLE OF itab_structure
       WITH HEADER LINE
       WITH NON-UNIQUE DEFAULT KEY INITIAL SIZE 0.
SORT itab ASCENDING BY f1.
LOOP AT itab WHERE f1 = '10'.
    itab-fn= value-n.
MODIFY itab
             TRANSPORTING fx fy fz ft
                    WHERE f1   = c1_filed AND
                                  f2   = c2_field.
ENDLOOP.
I need your suggestions in this kind of conversion or solution.
SORT itab ASCENDING BY f1 (<-- I don't know if in this case the better performances should be obtained using field symbols and in which way)
FIELD-SYMBOLS: <fs_itab_line> TYPE LINE OF itab.
LOOP AT itab ASSIGNING <fs_itab_line> WHERE
<fs_itab_line>-f1 = '10'.
MODIFY itab
             TRANSPORTING fx fy fz ft
                    WHERE f1   = c1_filed AND
                                  f2   = c2_field.
(I don't know if in this case the better performances should be obtained using field symbols and in which way)
ENDLOOP.
I wish to implement the field symbols or the better performance in terms of execution time in all my abap code, where it is possible.
Any suggestion will be well appreciated.
Thanks in advance for your kind support.
Regards,
       Giovanni

Dear All,
I have appeciated your suggestions and I can conclude these points in my case:
1) The "sort" statement is not optimized in a different way using filed-symbols
2) The loop with "where" condition on a standard table is performed using filed-symbols
But ... my last point to investigate is about the statement MODIFY table TRANSPORTING f1, f2 WHERE conditions.
More exactly, in my code the execution logic of the abap code expects a global modification of the same table at the end of every (primary) loop, using the MODYFY statement.
In other words in my code I can locate two loops on the same table in the following logic:
LOOP AT table1 WHERE f1 = '10'. (#1)
      updates to table1
      set c1_filed, c2_filed
      LOOP AT table1.   (#2)
         IF f1 = c1_filed AND
            f2 = c2_filed.
           table1-fx = 'x'.
           table1-fy = 'y'.
           table1-fz = 'z'.
           table1-ft = 't'.
         ENDIF.
         MODIFY table1.
      ENDLOOP.   (#2)
ENDLOOP.   (#1)
In better way (maybe more fast in terms of execution time) to modify a set of lines (MODIFY...TRANSPORTING...WHERE):
LOOP AT table1 WHERE f1 = '10'.
   table1-fx= 'x'.
   table1-fy= 'y'.
   table1-fz= 'z'.
   table1-ft= 't'.
   MODIFY itab
      TRANSPORTING fx fy fz ft
   WHERE f1 = c1_filed AND
         f2 = c2_field.
ENDLOOP.
My aim is to use field-symbols everywhere possible for speeding up the execution of my code,by maintaining this logic.
My proposal should be the following but I need your kind opinion.
FIELD-SYMBOLS: <fs_#1_line> TYPE LINE OF table1.
FIELD-SYMBOLS: <fs_#2_line> TYPE LINE OF table1.
LOOP AT table1 WHERE f1 = '10' ASSIGNING <fs_#1_line>. (#1)
      updates to table1
      set c1_filed, c2_filed
      LOOP AT table1 ASSIGNING <fs_#2_line>. (#2)
         IF <fs_#2_line>-f1 = c1_filed AND
            <fs_#2_line>-f2 = c2_filed.
           <fs_#2_line>-fx = 'x'.
           <fs_#2_line>-fy = 'y'.
           <fs_#2_line>-fz = 'z'.
           <fs_#2_line>-ft = 't'.
         ENDIF.
      ENDLOOP.   (#2)
ENDLOOP.   (#1)
Your kind support is very important for me.
Thanks in advance.
Regards,
     Giovanni

How to use field symbol in select

Hi,
    CONCATENATE 'WTG0' LV_MON INTO LV_FNAME.
    ASSIGN (LV_FNAME) TO <FS>.
    SELECT SINGLE <FS> FROM COSP INTO LV_SAPRST
         WHERE OBJNR = LV_OBJ AND GJAHR = LV_YEAR AND WRTTP = '4' AND KSTAR = GT_INOUT-SAKNR
   Error message :    Unknown column name "<FS>" . field list. . field list. field list.
   actually , if i use if command, i can do, but i want to use simple code by fieldsymbol.
   is it possible in select command?
Thanks in advance
Benjamin

Hi
Hope it will help you.
reward if help.
Field Symbols
Field symbols are placeholders or symbolic names for other fields. They do not physically reserve space for a field, but point to its contents. A field symbol cam point to any data object. The data object to which a field symbol points is assigned to it after it has been declared in the program.
Whenever you address a field symbol in a program, you are addressing the field that is assigned to the field symbol. After successful assignment, there is no difference in ABAP whether you reference the field symbol or the field itself. You must assign a field to each field symbol before you can address the latter in programs.
Field symbols are similar to dereferenced pointers in C (that is, pointers to which the content operator * is applied). However, the only real equivalent of pointers in ABAP, that is, variables that contain a memory address (reference) and that can be used without the contents operator, are reference variables in ABAP Objects.
All operations programmed with field symbols are applied to the field assigned to it. For example, a MOVE statement between two field symbols moves the contents of the field assigned to the first field symbol to the field assigned to the second field symbol. The field symbols themselves point to the same fields after the MOVE statement as they did before.
You can create field symbols either without or with type specifications. If you do not specify a type, the field symbol inherits all of the technical attributes of the field assigned to it. If you do specify a type, the system checks the compatibility of the field symbol and the field you are assigning to it during the ASSIGN statement.
Field symbols provide greater flexibility when you address data objects:
If you want to process sections of fields, you can specify the offset and length of the field dynamically.
You can assign one field symbol to another, which allows you to address parts of fields.
Assignments to field symbols may extend beyond field boundaries. This allows you to address regular sequences of fields in memory efficiently.
You can also force a field symbol to take different technical attributes from those of the field assigned to it.
The flexibility of field symbols provides elegant solutions to certain problems. On the other hand, it does mean that errors can easily occur. Since fields are not assigned to field symbols until runtime, the effectiveness of syntax and security checks is very limited for operations involving field symbols. This can lead to runtime errors or incorrect data assignments.
While runtime errors indicate an obvious problem, incorrect data assignments are dangerous because they can be very difficult to detect. For this reason, you should only use field symbols if you cannot achieve the same result using other ABAP statements.
For example, you may want to process part of a string where the offset and length depend on the contents of the field. You could use field symbols in this case. However, since the MOVE statement also supports variable offset and length specifications, you should use it instead. The MOVE statement (with your own auxiliary variables if required) is much safer than using field symbols, since it cannot address memory beyond the boundary of a field. However, field symbols may improve performance in some cases.
check the below links u will get the answers for your questions
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3860358411d1829f0000e829fbfe/content.htm
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/field_sy.htm
http://searchsap.techtarget.com/tip/1,289483,sid21_gci920484,00.html
Syntax Diagram
FIELD-SYMBOLS
Basic form
FIELD-SYMBOLS <fs>.
Extras:
1. ... TYPE type
2. ... TYPE REF TO cif
3. ... TYPE REF TO DATA
4. ... TYPE LINE OF type
5. ... LIKE s
6. ... LIKE LINE OF s
7. ... TYPE tabkind
8. ... STRUCTURE s DEFAULT wa
The syntax check performed in an ABAP Objects context is stricter than in other ABAP areas. See Cannot Use Untyped Field Symbols ad Cannot Use Field Symbols as Components of Classes.
Effect
This statement declares a symbolic field called <fs>. At runtime, you can assign a concrete field to the field symbol using ASSIGN. All operations performed with the field symbol then directly affect the field assigned to it.
You can only use one of the additions.
Example
Output aircraft type from the table SFLIGHT using a field symbol:
FIELD-SYMBOLS <PT> TYPE ANY.
DATA SFLIGHT_WA TYPE SFLIGHT.
ASSIGN SFLIGHT_WA-PLANETYPE TO <PT>.
WRITE <PT>.
Addition 1
... TYPE type
Addition 2
... TYPE REF TO cif
Addition 3
... TYPE REF TO DATA
Addition 4
... TYPE LINE OF type
Addition 5
... LIKE s
Addition 6
... LIKE LINE OF s
Addition 7
... TYPE tabkind
Effect
You can define the type of the field symbol using additions 2 to 7 (just as you can for FORM parameters (compare Defining the Type of Subroutine Parameters). When you use the ASSIGN statement, the system carries out the same type checks as for USING parameters of FORMs.
This addition is not allowed in an ABAP Objects context. See Cannot Use Obsolete Casting for FIELD SYMBOLS.
In some cases, the syntax rules that apply to Unicode programs are different than those for non-Unicode programs. See Defining Types Using STRUCTURE.
Effect
Assigns any (internal) field string or structure to the field symbol from the ABAP Dictionary (s). All fields of the structure can be addressed by name: <fs>-fieldname. The structured field symbol points initially to the work area wa specified after DEFAULT.
The work area wa must be at least as long as the structure s. If s contains fields of the type I or F, wa should have the structure s or at least begin in that way, since otherwise alignment problems may occur.
Example
Address components of the flight bookings table SBOOK using a field symbol:
DATA SBOOK_WA LIKE SBOOK.
FIELD-SYMBOLS <SB> STRUCTURE SBOOK
DEFAULT SBOOK_WA.
WRITE: <SB>-BOOKID, <SB>-FLDATE.
Related
ASSIGN, DATA
Additional help
Declaring Field Symbols

Using Field-Symbols in a user exit to change the importing parameter

Please don't ask why but I need to use a user exit, changing the importing parameter. I decided that I could do this using field-symbols.
Please excuse my ignorance but I have never used field symbols for something such as this.
Here is my goal: Loop through an internal table (im_document-item). When I find what I need I want to make a change to this line (not so hard if I am looping into a field symbol) and also append a line to the end of the table im_document-item.
I have the following so far:
DATA: wa_item TYPE accit,
wa_item_out type ACCIT_SUB.
FIELD-SYMBOLS: <document> type acc_document,
<accit> TYPE ACCIT.
LOOP AT im_document-item ASSIGNING <accit> where saknr = '0000211000'.
* Modify the curent line
wa_item = <accit>
* Append a new line into table im_document-item.
ENDLOOP.
How can I use field-symbols to append a line to this table? Please note that the table in question (im_document-item) is an importing only parameter.
Regards,
Davis

that will allow me to append an initial line with <accit> pointing to the line. Therefore I just have to modify <accit> and the new line will then have my changes?
Yep, that is exactly it. So after the APPEND statement, simply fill the fields of the <accit>.
append initial line to im_document-item ASSIGNING <accit>.
<accit>-field1 = 'Blah'.
<accit>-field2 = 'Blah'.
Regards,
Rich Heilman

Problem using field symbols in Query...

Hi,
I am fetching the name of the table and field which I will be using in the query using field symbols. But it gives syntax error...
select single OBJECTTABLE OBJECTFIELD into help_numtab from Zobjectname
where OBJECTNAME = P_OBJECT.
field-symbols : <number> type any.
field-symbols : <module> type any.
ASSIGN help_numtab-OBjectfield to <number>.
ASSIGN help_numtab-OBjecttable to <module>.
/* Here <number> = MATNR and <module> = MARA.
select <NUMBER> into table help_item
from <MODULE>
where ERNAM = SY-UNAME.
This gives a syntax error which says <module> is not defined in ABAP DDIC.

instead of field symbols, you ccan try this..
select (help_numtab-OBjectfield) into table help_item
from (help_numtab-OBjecttable)
where ERNAM = SY-UNAME.
~Suresh

How to code this using FIELD SYMBOL ?

Hello All,
I never used field symbols before and I think this is where I should use field symbols in my program.
I have a selection parameter period (p_period) and based on the p_period value(XX), I need to display the HSLXX, KSLXX from table GLT0 using field symbols. Can anyboby help me?
Thanks,
Chandni Reddy

Right, you can use field-symbols, here is a example.
report zrich_0002.
data: xGLT0 type GLT0 .
data: field_name(20) type c.
field-symbols: <fs> .
parameters: p_per(2) type n.
* Read a line from table
select Single * from glt0 into xglt0.
* Build the field name that you want to access
concatenate 'XGLT0-HSL' p_per into field_name.
* Assign it
assign (field_name) to <fs>.
* Write it
write:/ <fs>.
Regards,
Rich Heilman

How to populate one internal table from another using field symbols

Hi Gurus,
I have a problem. I have to populate one internal table (sructure t_otput) from another internal table (sructure t_from) using field symbol.
Structure for from table.
types: begin of t_from,
         year(4) type c,
         ww(2) type c,
         site type marc-werks,
         demand type i,
       end of t_from.
Structure for output table.
types: begin of t_display,
         title(30),
         WW1(10),
         WW2(10),
         WW3(10),
       end of t_display.
The from table looks like this:
Year | WW | Site | Demand
2005 | 1 | OR1 | 12.00
2005 | 2 | OR1 | 13.00
2005 | 3 | OR1 | 14.00
The display table which has to be populated should look like this:
Title | WW1   | WW2   | WW3
OR1    |       |       |
Demand | 12.00 | 13.00 | 14.00
How to populate display table using field symbol?
Please give code snippets
Thanks,
Gopal

Gopal,
Here is the code, however I am not vary clear about the ORG1 and Demand display that you have shown in the display. I am sure with this code it should not be a big deal to tweak in whatever manner you want.
TABLES : marc.
TYPES: BEGIN OF type_display,
title(30),
ww1(10),
ww2(10),
ww3(10),
END OF type_display.
TYPES: BEGIN OF type_from,
year(4) TYPE c,
ww(2) TYPE c,
site TYPE marc-werks,
demand TYPE i,
END OF type_from.
data : t_from type table of type_from,
       t_display type table of type_display.
field-symbols : <fs_from> type type_from,
                <fs_display> type type_display.
data : wa_from type type_From,
       wa_display type type_display.
wa_from-year = '2005'.
wa_from-ww   = '1'.
wa_from-site = 'OR1'.
wa_from-demand = '12.00'.
insert wa_from into table t_from.
wa_from-year = '2005'.
wa_from-ww   = '2'.
wa_from-site = 'OR1'.
wa_from-demand = '13.00'.
insert wa_from into table t_from.
wa_from-year = '2005'.
wa_from-ww   = '3'.
wa_from-site = 'OR1'.
wa_from-demand = '14.00'.
insert wa_from into table t_from.
data : variable(3) type c.
field-symbols : <fs_any> type any.
break-point.
Loop at t_from assigning <fs_from>.
variable = 'WW'.
wa_display-title = <fs_from>-site.
concatenate variable <fs_from>-ww into variable.
assign component variable of structure wa_display to <fs_any>.
<fs_any> = <fs_from>-demand.
endloop.
append wa_display to t_display.
clear wa_display.
loop at t_display assigning <Fs_display>.
write :/ <fs_display>.
endloop.
Note : Please award points if this helps you.
Regards,
Ravi

Delete row from internal table using field symbol.

Hi friends,
I created dynamic internal table using field symbol. I want to delete some data using where clause.
for example. i want to use like,
DELETE <FS> WHERE KUNNR = WA_KNA1-KUNNR.
Like the above statment it won't work. How i can use delete with where clause in field symbols.
Hope any one can help me.
Thanks and regards
Srikanth. S

hi Srikanth,
I think you have to LOOP through the whole internal table and check each line and decide to delete or not:
LOOP at <itab> INTO <wa>.
ASSIGN COMPONENT 'KUNNR' OF STRUCTURE <wa> TO <field>.
CHECK <field> IS ASSIGNED.
IF <field> EQ WA_KNA1-KUNNR.
DELETE ...
ENDIF.
UNASSIGN <field>.
ENDLOOP.
hope this helps
ec

Data Maintain in a table form another table....using field symbols.

Hi,
I am using dynamic table concepts.I am using field symbols.I need to maintain two tables of similar structure.
when i append data it will enter into both tables.when i unassign first table and reassign it ,i am getting back that data again into first table ..how to slve this problem.i need to start first table as fresh table and second table contain copy of the first table.

Hi,
maybe you should clarify your problem a bit more by pasting some code and try to explain it a bit more in detail.
Roy

Perform setting OOP ALV for multiple reports using Field Symbols

Hi, Abapers ... i try to write a programme which using ONE oop ALV but 2 different structure internal table. the last result should be 2 radio button. first button is r_wbs and 2ns r_kpi. r_wbs will display 4 column answer and r_kpi will display 10 columns answer with different column name. i successfully implemented using FIELDS SYMBOLS but the problems i failed to perform customized setting forALV (report's tittle, column name, different layout etc) for 2 different reports. this is the programme. Please Give Opinion, simple example will be more helpful. Thanks You Very Much
*&this report experimental how to print into ONE alv
*&with 2 diffrent structure internal table
REPORT zfiroopalv.
SELECTION-SCREEN BEGIN OF BLOCK mode WITH FRAME TITLE text-002.
PARAMETERS r_wbs RADIOBUTTON GROUP mode DEFAULT 'X'.
PARAMETERS r_kpi RADIOBUTTON GROUP mode.
SELECTION-SCREEN END OF BLOCK mode.
CLASS lcl_main DEFINITION.
PUBLIC SECTION.
CLASS-DATA: md_wbs TYPE c LENGTH 1.
METHODS: process,
         write.
DATA: mdo_data TYPE REF TO data.
TYPES: BEGIN OF st_wbs,
rsnum TYPE zmeime002a-rsnum,
rspos TYPE zmeime002a-rspos,
a TYPE zmmgitab01-menge,
b TYPE zmeime002a-bdmng,
c TYPE zmeime002a-bdmng,
d TYPE zmeime002a-bdmng,
e TYPE zmeime002a-bdmng,
f TYPE zmmgitab01-menge,
g TYPE zmmgitab01-menge,
END OF st_wbs.
TYPES: BEGIN OF st_kpi,
regio TYPE zmeime002a-regio,
gsber TYPE zmeime002a-gsber,
gtext TYPE zmeime002a-gtext,
x TYPE zmmgitab01-menge,
y TYPE zmmgitab01-menge,
z TYPE zmmgitab01-menge,
END OF st_kpi.
CLASS-DATA: it_wbs TYPE TABLE OF st_wbs,
            wa_wbs LIKE LINE OF it_wbs.
CLASS-DATA: it_kpi TYPE TABLE OF st_kpi,
            wa_kpi LIKE LINE OF it_kpi.
PRIVATE SECTION.
DATA: set_display_setting TYPE REF TO cl_salv_table.
DATA: display_settings TYPE REF TO cl_salv_display_settings.
DATA: salv_table TYPE REF TO cl_salv_table.
DATA: error TYPE REF TO cx_root.
DATA: errtext TYPE string.
ENDCLASS.
CLASS lcl_kpi DEFINITION INHERITING FROM lcl_main.
PUBLIC SECTION.
METHODS: process_kpi.
PRIVATE SECTION.
ENDCLASS.
* C.L.A.S.S lcl_main D.E.F.I.N.I.T.I.O.N
CLASS lcl_wbs DEFINITION INHERITING FROM lcl_main.
PUBLIC SECTION.
METHODS: process_wbs.
PRIVATE SECTION.
ENDCLASS.
* m.a.i.n. .p.r.o.g.r.a.m.
START-OF-SELECTION.
DATA: o_main TYPE REF TO lcl_main.
DATA: p_wbs TYPE c.
CREATE OBJECT o_main.
CASE 'X'.
WHEN r_wbs.
      o_main->md_wbs = 'X'.
WHEN r_kpi.
      o_main->md_wbs = ' '.
ENDCASE.
o_main->process( ).
o_main->write( ).
CLASS lcl_main IMPLEMENTATION.
*ENDMETHOD.
METHOD process. " NOTE: public method
DATA: o_main TYPE REF TO lcl_main,
      o_wbs TYPE REF TO lcl_wbs,
      o_kpi TYPE REF TO lcl_kpi.
CREATE OBJECT: o_wbs,o_kpi.
IF ( me->md_wbs = 'X' ).
      CALL METHOD o_wbs->process_wbs( ). " NOTE: private method
      GET REFERENCE OF me->it_wbs INTO me->mdo_data.
ELSE.
      CALL METHOD o_kpi->process_kpi( ). " NOTE: private method
      GET REFERENCE OF me->it_kpi INTO me->mdo_data.
ENDIF.
ENDMETHOD.
METHOD write.
FIELD-SYMBOLS:
<lt_outtab>    TYPE table.
ASSIGN me->mdo_data->* TO <lt_outtab>.
cl_salv_table=>factory(
EXPORTING
list_display = if_salv_c_bool_sap=>false
IMPORTING
r_salv_table = salv_table
CHANGING
t_table = <lt_outtab>
salv_table->display( ).
ENDMETHOD.
ENDCLASS.
CLASS lcl_kpi IMPLEMENTATION.
METHOD process_kpi.
*********** run some select statement into it_kpi*******
ENDMETHOD.
ENDCLASS.
CLASS lcl_wbs IMPLEMENTATION.
METHOD process_wbs.
*********** run some select statement into it_wbs*******
ENDMETHOD.
ENDCLASS.

Hi,
I had similar requirement wherein I was supposed to display different data using 2 different internal tables on a subscreen area.
The screen consists of two parts: 1) selection-screen with few input fields and two buttons 2) Subscreen area where the report need to be displayed. This report is displayed based on the button that the user is selecting. For this I have done the following things:
1. Capture the sy-ucomm when user is clicking on any of the two buttons in PAI. Then perform data fetch operation.
         MODULE USER_COMMAND_9003 INPUT.
             CASE OK_CODE.
                 WHEN 'DETAIL'.
                   GV_RPT = OK_CODE.
                   PERFORM F_GET_DETAIL_DATA.
                 WHEN 'REPORT'.
                   GV_RPT = OK_CODE.
                   PERFORM F_GET_REPT_DATA.
               ENDCASE.
         ENDMODULE.                 " USER_COMMAND_9003 INPUT
2. Declare two different ALV's with the fieldcat similar to 2 internal tables respectively. Use the above sy-ucomm PBO to call appropriate ALV.
         MODULE DISPLAY_ALV OUTPUT.
           IF GV_RPT EQ 'DETAIL'.
             PERFORM F_FIELDCAT_DETAIL.
             PERFORM F_LAYOUT_DETAIL.
             PERFORM F_EXCLUDE_TOOLBAR_DETAIL.
             PERFORM F_DISPLAY_ALV_DETAIL.
           ELSEIF GV_RPT EQ 'REPORT'.
             PERFORM F_FIELDCAT_REPT.
             PERFORM F_LAYOUT_REPT.
             PERFORM F_EXCLUDE_TOOLBAR_REPT.
             PERFORM F_DISPLAY_ALV_REPT.
           ENDIF.
         ENDMODULE.                 " DISPLAY_ALV OUTPUT
3. Before displaying ALV you need to free the container and ALV.
FORM F_DISPLAY_ALV_DETAIL .
IF GC_CONTAINER_ES IS NOT INITIAL.
    CALL METHOD GC_CONTAINER_ES->FREE
      EXCEPTIONS
        CNTL_ERROR        = 1
        CNTL_SYSTEM_ERROR = 2
        OTHERS            = 3.
    IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
               WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
ENDIF.
IF GC_ALV_GRID_ES IS NOT INITIAL.
    CALL METHOD GC_ALV_GRID_ES->FREE
      EXCEPTIONS
        CNTL_ERROR        = 1
        CNTL_SYSTEM_ERROR = 2
        OTHERS            = 3.
    IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
               WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
ENDIF.
IF GC_CONTAINER_TB IS NOT INITIAL.
    CALL METHOD GC_CONTAINER_TB->FREE
      EXCEPTIONS
        CNTL_ERROR        = 1
        CNTL_SYSTEM_ERROR = 2
        OTHERS            = 3.
    IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
               WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
ENDIF.
IF GC_ALV_GRID_TB IS NOT INITIAL.
    CALL METHOD GC_ALV_GRID_TB->FREE
      EXCEPTIONS
        CNTL_ERROR        = 1
        CNTL_SYSTEM_ERROR = 2
        OTHERS            = 3.
    IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
               WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
ENDIF.
CREATE OBJECT GC_CONTAINER_ES
    EXPORTING
      CONTAINER_NAME              = 'CC_9003'
    EXCEPTIONS
      CNTL_ERROR                  = 1
      CNTL_SYSTEM_ERROR           = 2
      CREATE_ERROR                = 3
      LIFETIME_ERROR              = 4
      LIFETIME_DYNPRO_DYNPRO_LINK = 5
      OTHERS                      = 6.
CREATE OBJECT GC_ALV_GRID_ES
    EXPORTING
      I_PARENT          = GC_CONTAINER_ES
    EXCEPTIONS
      ERROR_CNTL_CREATE = 1
      ERROR_CNTL_INIT   = 2
      ERROR_CNTL_LINK   = 3
      ERROR_DP_CREATE   = 4
      OTHERS            = 5.
CALL METHOD GC_ALV_GRID_ES->SET_TABLE_FOR_FIRST_DISPLAY
    EXPORTING
      IS_LAYOUT                     = GS_LAYOUT_ES
      IT_TOOLBAR_EXCLUDING          = GT_TOOLBAR_ES
    CHANGING
      IT_OUTTAB                     = GT_ES_REPT
      IT_FIELDCATALOG               = GT_FIELDCAT_ES
    EXCEPTIONS
      INVALID_PARAMETER_COMBINATION = 1
      PROGRAM_ERROR                 = 2
      TOO_MANY_LINES                = 3
      OTHERS                        = 4.
ENDFORM.                    " F_DISPLAY_ALV_DETAIL
Similarly define the FORM F_DISPLAY_ALV_REPT.
Hope this will be useful for you. If you have any more queries let me know.

Problem in using Field Symbols in HIDE statement

Hi All,
I am working in an Upgrade project ( from 4.6B to ECC 5.0 ). In a program I found few warnings on HIDE statement because they have used Field Symbols in HIDE statement.
The warning is " HIDE on a field symbol is dangerous, but the formal parameter "" is not ".
and the piece of code is
SET EXTENDED CHECK OFF.
HIDE: flg_pick_up, <s1>, <s2>, <s3>, <s4>, <s5>, z_feld_ind.
CLEAR flg_pick_up.
SET EXTENDED CHECK ON.
all the field symbols are of type ANY. SO can any one help in removing those warnings.
Please reply me as soon as possible.
With Regards,
Amarnath Singanamala

Hi amarnath,
1. Why do u want to remove
the warning ?
2. This warning (and not an error)
is a GENUINE warning,
which the system wants the user to make aware of.
3. By doing some xyz,
even if u may be able to hide the warning,
the warning may be hidden (for display purpose only),
but,
the warning will still be there inside the system.
4. I think u should ignore the warning,
(if there are no other repurcussions).
regards,
amit m.

Going for dump while using field symbols

Hi all,
   I am using field symbols in my program. Program is going dump for some company codes and working fine for some company codes.
I am confused. Please check this code where the error is shown.
LOOP AT i_final ASSIGNING <fs_final>.
    AT NEW belnr.
     if <fs_final>-wt_withcd = 'SF' or <fs_final>-wt_withcd = 'XF' OR <fs_final>- wt_withcd = 'WF'.
      MOVE <fs_final> TO wa_final1.
      g_qsatz = wa_final1-qsatz.
      APPEND wa_final1 TO i_final1.
      CLEAR wa_final1.
     ENDIF.
    ENDAT.
    READ TABLE i_final1 ASSIGNING <fs_final1> WITH KEY belnr = <fs_final>-belnr.
    IF <fs_final>-wt_withcd = 'SF'.
      <fs_final1>-wt_withcd1 = <fs_final>-wt_withcd.
      <fs_final1>-wt_qbshb1 = <fs_final>-wt_qbshb.
      <fs_final1>-qsatz      = <fs_final1>-qsatz + <fs_final>-qsatz.
    ENDIF.
    IF <fs_final>-wt_withcd = 'XF'.
      <fs_final1>-wt_withcd2 = <fs_final>-wt_withcd.
      <fs_final1>-wt_qbshb2 = <fs_final>-wt_qbshb.
      <fs_final1>-qsatz      = <fs_final1>-qsatz + <fs_final>-qsatz.
    ENDIF.
    IF <fs_final>-wt_withcd = 'WF'.
      <fs_final1>-wt_withcd = <fs_final>-wt_withcd.
      <fs_final1>-wt_qbshb = <fs_final>-wt_qbshb.
      <fs_final1>-qsatz      = <fs_final1>-qsatz + <fs_final>-qsatz.
    ENDIF.
    AT END OF belnr.
      <fs_final1>-qsatz = <fs_final1>-qsatz - g_qsatz.
      clear g_qsatz.
    ENDAT.
ENDLOOP.
Please check the code and help me.
Thanks in advance,
Shalem

HI Shalem
Please check this code:
LOOP AT i_final ASSIGNING <fs_final>.
AT NEW belnr.
     if <fs_final>-wt_withcd = 'SF' or
        <fs_final>-wt_withcd = 'XF' OR
        <fs_final>- wt_withcd = 'WF'.
        MOVE <fs_final> TO wa_final1.
        g_qsatz = wa_final1-qsatz.
        APPEND wa_final1 TO i_final1.
        CLEAR wa_final1.
     ENDIF.
ENDAT.
READ TABLE i_final1 ASSIGNING <fs_final1> WITH KEY belnr = <fs_final>-belnr.
IF sy-subrc EQ 0.
     CASE <fs_final>-wt_withcd.
     WHEN 'SF'.
          <fs_final1>-wt_withcd1 = <fs_final>-wt_withcd.
          <fs_final1>-wt_qbshb1 = <fs_final>-wt_qbshb.
     WHEN 'XF'.
          <fs_final1>-wt_withcd2 = <fs_final>-wt_withcd.
          <fs_final1>-wt_qbshb2 = <fs_final>-wt_qbshb.
     WHEN 'WF'.
          <fs_final1>-wt_withcd = <fs_final>-wt_withcd.
          <fs_final1>-wt_qbshb = <fs_final>-wt_qbshb.
     ENDCASE.
     <fs_final1>-qsatz = <fs_final1>-qsatz + <fs_final>-qsatz.
     AT END OF belnr.
        <fs_final1>-qsatz = <fs_final1>-qsatz - g_qsatz.
        clear g_qsatz.
     ENDAT.
ENDIF.
ENDLOOP.
Kind Regards
Eswar

How to use field symbols

can anyone tell me how to use field symbols. What effect it has on performance of a program?
what r its avantages?
iam working on a report where iam facing a lot of problems in performance issue. can anyone tell how field symbols are useful in this regard?
thanx to all

Check the below links
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3860358411d1829f0000e829fbfe/content.htm
FIELD-SYMBOLS
Basic form
FIELD-SYMBOLS <fs>.
Additions
1. ... STRUCTURE s DEFAULT wa
2. ... TYPE t
3. ... TYPE LINE OF t
4. ... LIKE s
5. ... LIKE LINE OF s
Effect
This statement declares a symbolic field called <fs>. At runtime, you can assign a concrete field to the field symbol using ASSIGN . All operations performed with the field symbol then directly affect the field assigned to it.
You can only use one of the additions.
Example
Output aircraft type from the table SFLIGHT using a field symbol:
FIELD-SYMBOLS <PT>.
TABLES SFLIGHT.
ASSIGN SFLIGHT-PLANETYPE TO <PT>.
WRITE <PT>.
Addition 1
... STRUCTURE s DEFAULT wa
Effect
Assigns any (internal) field string or structure to the field symbol from the ABAP/4 Dictionary ( s ). All fields of the structure can be addressed by name: <fs>-fieldname . The structured field symbol points initially to the work area wa specified after DEFAULT .
The work area wa must be at least as long as the structure s . If s contains fields of the type I or F, wa should have the structure s or at least begin in that way, since otherwise alignment problems may occur.
Example
Address components of the flight bookings table SBOOK using a field symbol:
DATA SBOOK_WA LIKE SBOOK.
FIELD-SYMBOLS <SB> STRUCTURE SBOOK
DEFAULT SBOOK_WA.
WRITE: <SB>-BOOKID, <SB>-FLDATE.
Addition 2
... TYPE t
Addition 3
... TYPE LINE OF t
Addition 4
... LIKE s
Addition 5
... LIKE LINE OF s
Effect
You can use additions 2 to 5 to type field symbols in the same way as FORM parameters (see also Type assignment of subroutine parameters). ASSIGN performs the same type checks as with USING parameters of FORM s.

Modify DB by single field using Field Symbol

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