ABAP Select data from SAP table RPCDTSD0_BELEG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCDTSD0_BELEG 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 RPCDTSD0_BELEG. 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 RPCDTSD0_BELEG 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_RPCDTSD0_BELEG TYPE STANDARD TABLE OF RPCDTSD0_BELEG,
      WA_RPCDTSD0_BELEG TYPE RPCDTSD0_BELEG,
      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: <RPCDTSD0_BELEG> TYPE RPCDTSD0_BELEG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCDTSD0_BELEG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCDTSD0_BELEG
  INTO TABLE IT_RPCDTSD0_BELEG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCDTSD0_BELEG
*  INTO TABLE @DATA(IT_RPCDTSD0_BELEG2).
*--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_RPCDTSD0_BELEG INDEX 1 INTO DATA(WA_RPCDTSD0_BELEG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCDTSD0_BELEG ASSIGNING <RPCDTSD0_BELEG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCDTSD0_BELEG>-MSKEY = 1.
<RPCDTSD0_BELEG>-MOD04 = 1.
<RPCDTSD0_BELEG>-ABKRS = 1.
<RPCDTSD0_BELEG>-PABRJ = 1.
<RPCDTSD0_BELEG>-PABRP = 1.

ENDLOOP.

LOOP AT IT_RPCDTSD0_BELEG INTO WA_RPCDTSD0_BELEG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCDTSD0_BELEG-WERKS, sy-vline,
  WA_RPCDTSD0_BELEG-BTRTL, sy-vline,
  WA_RPCDTSD0_BELEG-KVSCH, sy-vline,
  WA_RPCDTSD0_BELEG-KVGST, sy-vline,
  WA_RPCDTSD0_BELEG-LIART, sy-vline,
  WA_RPCDTSD0_BELEG-VBLNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCDTSD0_BELEG 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_RPCDTSD0_BELEG 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_RPCDTSD0_BELEG INTO WA_RPCDTSD0_BELEG.


*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 GJAHR, internal->external for field PABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RPCDTSD0_BELEG-PABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPCDTSD0_BELEG-PABRJ.
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_RPCDTSD0_BELEG_STR, 
MSKEY TYPE STRING,
MOD04 TYPE STRING,
ABKRS TYPE STRING,
PABRJ TYPE STRING,
PABRP TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
KVSCH TYPE STRING,
KVGST TYPE STRING,
LIART TYPE STRING,
VBLNR TYPE STRING,
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
RZAWE TYPE STRING,
ZBUKR TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
RBETR TYPE STRING,
WAERS TYPE STRING,
ZNME1 TYPE STRING,
ZPSTL TYPE STRING,
ZORT1 TYPE STRING,
ZBNKS TYPE STRING,
ZBNKL TYPE STRING,
ZBNKN TYPE STRING,
XBLNR TYPE STRING,
SGTXT TYPE STRING,
ZIBAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCDTSD0_BELEG_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_RPCDTSD0_BELEG_STR-MSKEY sy-vline 
WA_RPCDTSD0_BELEG_STR-MOD04 sy-vline 
WA_RPCDTSD0_BELEG_STR-ABKRS sy-vline 
WA_RPCDTSD0_BELEG_STR-PABRJ sy-vline 
WA_RPCDTSD0_BELEG_STR-PABRP sy-vline 
WA_RPCDTSD0_BELEG_STR-WERKS sy-vline 
WA_RPCDTSD0_BELEG_STR-BTRTL sy-vline 
WA_RPCDTSD0_BELEG_STR-KVSCH sy-vline 
WA_RPCDTSD0_BELEG_STR-KVGST sy-vline 
WA_RPCDTSD0_BELEG_STR-LIART sy-vline 
WA_RPCDTSD0_BELEG_STR-VBLNR sy-vline 
WA_RPCDTSD0_BELEG_STR-MANDT sy-vline 
WA_RPCDTSD0_BELEG_STR-LAUFD sy-vline 
WA_RPCDTSD0_BELEG_STR-LAUFI sy-vline 
WA_RPCDTSD0_BELEG_STR-RZAWE sy-vline 
WA_RPCDTSD0_BELEG_STR-ZBUKR sy-vline 
WA_RPCDTSD0_BELEG_STR-HBKID sy-vline 
WA_RPCDTSD0_BELEG_STR-HKTID sy-vline 
WA_RPCDTSD0_BELEG_STR-RBETR sy-vline 
WA_RPCDTSD0_BELEG_STR-WAERS sy-vline 
WA_RPCDTSD0_BELEG_STR-ZNME1 sy-vline 
WA_RPCDTSD0_BELEG_STR-ZPSTL sy-vline 
WA_RPCDTSD0_BELEG_STR-ZORT1 sy-vline 
WA_RPCDTSD0_BELEG_STR-ZBNKS sy-vline 
WA_RPCDTSD0_BELEG_STR-ZBNKL sy-vline 
WA_RPCDTSD0_BELEG_STR-ZBNKN sy-vline 
WA_RPCDTSD0_BELEG_STR-XBLNR sy-vline 
WA_RPCDTSD0_BELEG_STR-SGTXT sy-vline 
WA_RPCDTSD0_BELEG_STR-ZIBAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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