ABAP Select data from SAP table FOAP_S_RFWEKO00_LIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FOAP_S_RFWEKO00_LIST 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 FOAP_S_RFWEKO00_LIST. 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 FOAP_S_RFWEKO00_LIST 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_FOAP_S_RFWEKO00_LIST TYPE STANDARD TABLE OF FOAP_S_RFWEKO00_LIST,
      WA_FOAP_S_RFWEKO00_LIST TYPE FOAP_S_RFWEKO00_LIST,
      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: <FOAP_S_RFWEKO00_LIST> TYPE FOAP_S_RFWEKO00_LIST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FOAP_S_RFWEKO00_LIST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FOAP_S_RFWEKO00_LIST
  INTO TABLE IT_FOAP_S_RFWEKO00_LIST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FOAP_S_RFWEKO00_LIST
*  INTO TABLE @DATA(IT_FOAP_S_RFWEKO00_LIST2).
*--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_FOAP_S_RFWEKO00_LIST INDEX 1 INTO DATA(WA_FOAP_S_RFWEKO00_LIST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FOAP_S_RFWEKO00_LIST ASSIGNING <FOAP_S_RFWEKO00_LIST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FOAP_S_RFWEKO00_LIST>-SAKNR = 1.
<FOAP_S_RFWEKO00_LIST>-TXT20 = 1.
<FOAP_S_RFWEKO00_LIST>-BELNR = 1.
<FOAP_S_RFWEKO00_LIST>-NETDT = 1.
<FOAP_S_RFWEKO00_LIST>-DISBLNR = 1.

ENDLOOP.

LOOP AT IT_FOAP_S_RFWEKO00_LIST INTO WA_FOAP_S_RFWEKO00_LIST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FOAP_S_RFWEKO00_LIST-WAERS, sy-vline,
  WA_FOAP_S_RFWEKO00_LIST-DMSHB, sy-vline,
  WA_FOAP_S_RFWEKO00_LIST-BUDAT, sy-vline,
  WA_FOAP_S_RFWEKO00_LIST-DISBLDT, sy-vline,
  WA_FOAP_S_RFWEKO00_LIST-WAEHRSL, sy-vline,
  WA_FOAP_S_RFWEKO00_LIST-WRSHB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FOAP_S_RFWEKO00_LIST 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_FOAP_S_RFWEKO00_LIST 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_FOAP_S_RFWEKO00_LIST INTO WA_FOAP_S_RFWEKO00_LIST.


*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 SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DISBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-DISBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-DISBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-DMSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-DMSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-WRSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-WRSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOAP_S_RFWEKO00_LIST-BACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOAP_S_RFWEKO00_LIST-BACCT.
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_FOAP_S_RFWEKO00_LIST_STR, 
SAKNR TYPE STRING,
TXT20 TYPE STRING,
BELNR TYPE STRING,
NETDT TYPE STRING,
DISBLNR TYPE STRING,
WAERS TYPE STRING,
DMSHB TYPE STRING,
BUDAT TYPE STRING,
DISBLDT TYPE STRING,
WAEHRSL TYPE STRING,
WRSHB TYPE STRING,
SGTXT TYPE STRING,
KUNNR TYPE STRING,
NAME1 TYPE STRING,
ORT01 TYPE STRING,
WNAME TYPE STRING,
WBZOG TYPE STRING,
WORT1 TYPE STRING,
WORT2 TYPE STRING,
WBANK TYPE STRING,
WLZBP TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
WECVERW TYPE STRING,
WDATE TYPE STRING,
BACCT TYPE STRING,
BTEXT TYPE STRING,
KOART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FOAP_S_RFWEKO00_LIST_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_FOAP_S_RFWEKO00_LIST_STR-SAKNR sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-TXT20 sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BELNR sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-NETDT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-DISBLNR sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WAERS sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-DMSHB sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BUDAT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-DISBLDT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WAEHRSL sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WRSHB sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-SGTXT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-KUNNR sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-NAME1 sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-ORT01 sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WNAME sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WBZOG sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WORT1 sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WORT2 sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WBANK sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WLZBP sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BANKS sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BANKL sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BANKN sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BKONT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WECVERW sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-WDATE sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BACCT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-BTEXT sy-vline 
WA_FOAP_S_RFWEKO00_LIST_STR-KOART sy-vline      INTO ld_text SEPARATED BY SPACE.

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