ABAP Select data from SAP table RF61DDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RF61DDS 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 RF61DDS. 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 RF61DDS 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_RF61DDS TYPE STANDARD TABLE OF RF61DDS,
      WA_RF61DDS TYPE RF61DDS,
      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: <RF61DDS> TYPE RF61DDS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RF61DDS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RF61DDS
  INTO TABLE IT_RF61DDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RF61DDS
*  INTO TABLE @DATA(IT_RF61DDS2).
*--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_RF61DDS INDEX 1 INTO DATA(WA_RF61DDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RF61DDS ASSIGNING <RF61DDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RF61DDS>-REC_TYP = 1.
<RF61DDS>-ABRKDNR = 1.
<RF61DDS>-STECHEM = 1.
<RF61DDS>-ABRLTAG = 1.
<RF61DDS>-ABNNR = 1.

ENDLOOP.

LOOP AT IT_RF61DDS INTO WA_RF61DDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RF61DDS-ABRGKOSTD, sy-vline,
  WA_RF61DDS-ABRGZAHLD, sy-vline,
  WA_RF61DDS-ABRSALDOD, sy-vline,
  WA_RF61DDS-ABRABND, sy-vline,
  WA_RF61DDS-ABRUMLWBT, sy-vline,
  WA_RF61DDS-ABRSTTAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RF61DDS 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_RF61DDS 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_RF61DDS INTO WA_RF61DDS.


*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_RF61DDS_STR, 
REC_TYP TYPE STRING,
ABRKDNR TYPE STRING,
STECHEM TYPE STRING,
ABRLTAG TYPE STRING,
ABNNR TYPE STRING,
ABRGKOSTD TYPE STRING,
ABRGZAHLD TYPE STRING,
ABRSALDOD TYPE STRING,
ABRABND TYPE STRING,
ABRUMLWBT TYPE STRING,
ABRSTTAG TYPE STRING,
ABRNZAHL TYPE STRING,
ABRRES4 TYPE STRING,
ABRMWSTBTD TYPE STRING,
ABRWAERS TYPE STRING,
ABRRES3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RF61DDS_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_RF61DDS_STR-REC_TYP sy-vline 
WA_RF61DDS_STR-ABRKDNR sy-vline 
WA_RF61DDS_STR-STECHEM sy-vline 
WA_RF61DDS_STR-ABRLTAG sy-vline 
WA_RF61DDS_STR-ABNNR sy-vline 
WA_RF61DDS_STR-ABRGKOSTD sy-vline 
WA_RF61DDS_STR-ABRGZAHLD sy-vline 
WA_RF61DDS_STR-ABRSALDOD sy-vline 
WA_RF61DDS_STR-ABRABND sy-vline 
WA_RF61DDS_STR-ABRUMLWBT sy-vline 
WA_RF61DDS_STR-ABRSTTAG sy-vline 
WA_RF61DDS_STR-ABRNZAHL sy-vline 
WA_RF61DDS_STR-ABRRES4 sy-vline 
WA_RF61DDS_STR-ABRMWSTBTD sy-vline 
WA_RF61DDS_STR-ABRWAERS sy-vline 
WA_RF61DDS_STR-ABRRES3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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