ABAP Select data from SAP table FKK_MAD_0026 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_MAD_0026 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FKK_MAD_0026. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FKK_MAD_0026 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FKK_MAD_0026 TYPE STANDARD TABLE OF FKK_MAD_0026,
      WA_FKK_MAD_0026 TYPE FKK_MAD_0026,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FKK_MAD_0026> TYPE FKK_MAD_0026.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKK_MAD_0026.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKK_MAD_0026
  INTO TABLE IT_FKK_MAD_0026.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_MAD_0026
*  INTO TABLE @DATA(IT_FKK_MAD_00262).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FKK_MAD_0026 INDEX 1 INTO DATA(WA_FKK_MAD_00262).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKK_MAD_0026 ASSIGNING <FKK_MAD_0026>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_MAD_0026>-R_BETRH = 1.
<FKK_MAD_0026>-XPERIOD_APPENDIX = 1.
<FKK_MAD_0026>-SEL_NAME_MA = 1.
<FKK_MAD_0026>-COR_IGN_MA = 1.
<FKK_MAD_0026>-COPER = 1.

ENDLOOP.

LOOP AT IT_FKK_MAD_0026 INTO WA_FKK_MAD_0026.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_MAD_0026-SENDCONTROL, sy-vline,
  WA_FKK_MAD_0026-CHGID, sy-vline,
  WA_FKK_MAD_0026-OLDDT_PR, sy-vline,
  WA_FKK_MAD_0026-OLDDT_INP, sy-vline,
  WA_FKK_MAD_0026-OLDDT, sy-vline,
  WA_FKK_MAD_0026-KEYDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_MAD_0026 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FKK_MAD_0026 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FKK_MAD_0026 INTO WA_FKK_MAD_0026.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FKK_MAD_0026_STR, 
R_BETRH TYPE STRING,
XPERIOD_APPENDIX TYPE STRING,
SEL_NAME_MA TYPE STRING,
COR_IGN_MA TYPE STRING,
COPER TYPE STRING,
SENDCONTROL TYPE STRING,
CHGID TYPE STRING,
OLDDT_PR TYPE STRING,
OLDDT_INP TYPE STRING,
OLDDT TYPE STRING,
KEYDT TYPE STRING,
SALDO TYPE STRING,
UMSATZ TYPE STRING,
UMSINT TYPE STRING,
WAERH TYPE STRING,
SALNULL TYPE STRING,
UMSNULL TYPE STRING,
MLAUFD TYPE STRING,
MLAUFI TYPE STRING,
METHOD TYPE STRING,
RANTWORT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_MAD_0026_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FKK_MAD_0026_STR-R_BETRH sy-vline 
WA_FKK_MAD_0026_STR-XPERIOD_APPENDIX sy-vline 
WA_FKK_MAD_0026_STR-SEL_NAME_MA sy-vline 
WA_FKK_MAD_0026_STR-COR_IGN_MA sy-vline 
WA_FKK_MAD_0026_STR-COPER sy-vline 
WA_FKK_MAD_0026_STR-SENDCONTROL sy-vline 
WA_FKK_MAD_0026_STR-CHGID sy-vline 
WA_FKK_MAD_0026_STR-OLDDT_PR sy-vline 
WA_FKK_MAD_0026_STR-OLDDT_INP sy-vline 
WA_FKK_MAD_0026_STR-OLDDT sy-vline 
WA_FKK_MAD_0026_STR-KEYDT sy-vline 
WA_FKK_MAD_0026_STR-SALDO sy-vline 
WA_FKK_MAD_0026_STR-UMSATZ sy-vline 
WA_FKK_MAD_0026_STR-UMSINT sy-vline 
WA_FKK_MAD_0026_STR-WAERH sy-vline 
WA_FKK_MAD_0026_STR-SALNULL sy-vline 
WA_FKK_MAD_0026_STR-UMSNULL sy-vline 
WA_FKK_MAD_0026_STR-MLAUFD sy-vline 
WA_FKK_MAD_0026_STR-MLAUFI sy-vline 
WA_FKK_MAD_0026_STR-METHOD sy-vline 
WA_FKK_MAD_0026_STR-RANTWORT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.