ABAP Select data from SAP table FKK_WRITEOFFANALYSIS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_WRITEOFFANALYSIS 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_WRITEOFFANALYSIS. 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_WRITEOFFANALYSIS 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_WRITEOFFANALYSIS TYPE STANDARD TABLE OF FKK_WRITEOFFANALYSIS,
      WA_FKK_WRITEOFFANALYSIS TYPE FKK_WRITEOFFANALYSIS,
      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_WRITEOFFANALYSIS> TYPE FKK_WRITEOFFANALYSIS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_WRITEOFFANALYSIS
*  INTO TABLE @DATA(IT_FKK_WRITEOFFANALYSIS2).
*--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_WRITEOFFANALYSIS INDEX 1 INTO DATA(WA_FKK_WRITEOFFANALYSIS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_WRITEOFFANALYSIS>-ODATA_KEY = 1.
<FKK_WRITEOFFANALYSIS>-WRITEOFF_KEY = 1.
<FKK_WRITEOFFANALYSIS>-VKTYP = 1.
<FKK_WRITEOFFANALYSIS>-BUKRS = 1.
<FKK_WRITEOFFANALYSIS>-ABGRD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_WRITEOFFANALYSIS-ABDAT, sy-vline,
  WA_FKK_WRITEOFFANALYSIS-BETRW, sy-vline,
  WA_FKK_WRITEOFFANALYSIS-HERKF, sy-vline,
  WA_FKK_WRITEOFFANALYSIS-AUSDT, sy-vline,
  WA_FKK_WRITEOFFANALYSIS-MAHNV, sy-vline,
  WA_FKK_WRITEOFFANALYSIS-STRAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_WRITEOFFANALYSIS 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_WRITEOFFANALYSIS 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_WRITEOFFANALYSIS INTO WA_FKK_WRITEOFFANALYSIS.


*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.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_WRITEOFFANALYSIS-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_WRITEOFFANALYSIS-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_WRITEOFFANALYSIS-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_WRITEOFFANALYSIS-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_WRITEOFFANALYSIS-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_WRITEOFFANALYSIS-VTREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_WRITEOFFANALYSIS-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_WRITEOFFANALYSIS-SEGMENT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_FKK_WRITEOFFANALYSIS_STR, 
ODATA_KEY TYPE STRING,
WRITEOFF_KEY TYPE STRING,
VKTYP TYPE STRING,
BUKRS TYPE STRING,
ABGRD TYPE STRING,
ABDAT TYPE STRING,
BETRW TYPE STRING,
HERKF TYPE STRING,
AUSDT TYPE STRING,
MAHNV TYPE STRING,
STRAT TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
GSBER TYPE STRING,
SPART TYPE STRING,
SEGMENT TYPE STRING,
POSTALCODE TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
KOFIZ TYPE STRING,
BLART TYPE STRING,
STAKZ TYPE STRING,
WONUMBER TYPE STRING,
PERTYPE TYPE STRING,
PERNUMBER TYPE STRING,
PERFROM TYPE STRING,
PERTO TYPE STRING,
APPSTATE TYPE STRING,
TEXT TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
GROUPBY TYPE STRING,
ABDAT_CODE TYPE STRING,
AUSDT_CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_WRITEOFFANALYSIS_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_WRITEOFFANALYSIS_STR-ODATA_KEY sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-WRITEOFF_KEY sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-VKTYP sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-BUKRS sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-ABGRD sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-ABDAT sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-BETRW sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-HERKF sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-AUSDT sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-MAHNV sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-STRAT sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-GPART sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-VKONT sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-VTREF sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-SUBAP sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-GSBER sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-SPART sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-SEGMENT sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-POSTALCODE sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-HVORG sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-TVORG sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-KOFIZ sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-BLART sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-STAKZ sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-WONUMBER sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-PERTYPE sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-PERNUMBER sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-PERFROM sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-PERTO sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-APPSTATE sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-TEXT sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-DISPLAYCURRENCY sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-GROUPBY sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-ABDAT_CODE sy-vline 
WA_FKK_WRITEOFFANALYSIS_STR-AUSDT_CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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