ABAP Select data from SAP table GSS_RFFR0C02_LIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GSS_RFFR0C02_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 GSS_RFFR0C02_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 GSS_RFFR0C02_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_GSS_RFFR0C02_LIST TYPE STANDARD TABLE OF GSS_RFFR0C02_LIST,
      WA_GSS_RFFR0C02_LIST TYPE GSS_RFFR0C02_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: <GSS_RFFR0C02_LIST> TYPE GSS_RFFR0C02_LIST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GSS_RFFR0C02_LIST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GSS_RFFR0C02_LIST
  INTO TABLE IT_GSS_RFFR0C02_LIST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GSS_RFFR0C02_LIST
*  INTO TABLE @DATA(IT_GSS_RFFR0C02_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_GSS_RFFR0C02_LIST INDEX 1 INTO DATA(WA_GSS_RFFR0C02_LIST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GSS_RFFR0C02_LIST ASSIGNING <GSS_RFFR0C02_LIST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GSS_RFFR0C02_LIST>-BUKRS = 1.
<GSS_RFFR0C02_LIST>-SAKNR = 1.
<GSS_RFFR0C02_LIST>-IDENT = 1.
<GSS_RFFR0C02_LIST>-FORMULAIRE = 1.
<GSS_RFFR0C02_LIST>-BUDAT = 1.

ENDLOOP.

LOOP AT IT_GSS_RFFR0C02_LIST INTO WA_GSS_RFFR0C02_LIST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GSS_RFFR0C02_LIST-BLDAT, sy-vline,
  WA_GSS_RFFR0C02_LIST-BELNR, sy-vline,
  WA_GSS_RFFR0C02_LIST-BUZEI, sy-vline,
  WA_GSS_RFFR0C02_LIST-BLART, sy-vline,
  WA_GSS_RFFR0C02_LIST-BSCHL, sy-vline,
  WA_GSS_RFFR0C02_LIST-WRBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GSS_RFFR0C02_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_GSS_RFFR0C02_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_GSS_RFFR0C02_LIST INTO WA_GSS_RFFR0C02_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_GSS_RFFR0C02_LIST-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GSS_RFFR0C02_LIST-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GSS_RFFR0C02_LIST-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GSS_RFFR0C02_LIST-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_GSS_RFFR0C02_LIST-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GSS_RFFR0C02_LIST-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field W_SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GSS_RFFR0C02_LIST-W_SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GSS_RFFR0C02_LIST-W_SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field W_GKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GSS_RFFR0C02_LIST-W_GKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GSS_RFFR0C02_LIST-W_GKONT.
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_GSS_RFFR0C02_LIST_STR, 
BUKRS TYPE STRING,
SAKNR TYPE STRING,
IDENT TYPE STRING,
FORMULAIRE TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
BLART TYPE STRING,
BSCHL TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
W_SAKNR TYPE STRING,
W_GKONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GSS_RFFR0C02_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_GSS_RFFR0C02_LIST_STR-BUKRS sy-vline 
WA_GSS_RFFR0C02_LIST_STR-SAKNR sy-vline 
WA_GSS_RFFR0C02_LIST_STR-IDENT sy-vline 
WA_GSS_RFFR0C02_LIST_STR-FORMULAIRE sy-vline 
WA_GSS_RFFR0C02_LIST_STR-BUDAT sy-vline 
WA_GSS_RFFR0C02_LIST_STR-BLDAT sy-vline 
WA_GSS_RFFR0C02_LIST_STR-BELNR sy-vline 
WA_GSS_RFFR0C02_LIST_STR-BUZEI sy-vline 
WA_GSS_RFFR0C02_LIST_STR-BLART sy-vline 
WA_GSS_RFFR0C02_LIST_STR-BSCHL sy-vline 
WA_GSS_RFFR0C02_LIST_STR-WRBTR sy-vline 
WA_GSS_RFFR0C02_LIST_STR-WAERS sy-vline 
WA_GSS_RFFR0C02_LIST_STR-W_SAKNR sy-vline 
WA_GSS_RFFR0C02_LIST_STR-W_GKONT sy-vline      INTO ld_text SEPARATED BY SPACE.

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