ABAP Select data from SAP table RMF64L200 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RMF64L200 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 RMF64L200. 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 RMF64L200 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_RMF64L200 TYPE STANDARD TABLE OF RMF64L200,
      WA_RMF64L200 TYPE RMF64L200,
      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: <RMF64L200> TYPE RMF64L200.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RMF64L200.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RMF64L200
  INTO TABLE IT_RMF64L200.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMF64L200
*  INTO TABLE @DATA(IT_RMF64L2002).
*--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_RMF64L200 INDEX 1 INTO DATA(WA_RMF64L2002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RMF64L200 ASSIGNING <RMF64L200>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMF64L200>-BUKRS = 1.
<RMF64L200>-BUKRS_T = 1.
<RMF64L200>-RANL = 1.
<RMF64L200>-KURZBEZ = 1.
<RMF64L200>-RSPLITN = 1.

ENDLOOP.

LOOP AT IT_RMF64L200 INTO WA_RMF64L200.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMF64L200-GSART, sy-vline,
  WA_RMF64L200-GSART_T, sy-vline,
  WA_RMF64L200-REPKE, sy-vline,
  WA_RMF64L200-REPKE_T, sy-vline,
  WA_RMF64L200-SWERTTYP, sy-vline,
  WA_RMF64L200-SWERTTAP_T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMF64L200 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_RMF64L200 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_RMF64L200 INTO WA_RMF64L200.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMF64L200-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64L200-RANL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REPKE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMF64L200-REPKE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64L200-REPKE.
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_RMF64L200_STR, 
BUKRS TYPE STRING,
BUKRS_T TYPE STRING,
RANL TYPE STRING,
KURZBEZ TYPE STRING,
RSPLITN TYPE STRING,
GSART TYPE STRING,
GSART_T TYPE STRING,
REPKE TYPE STRING,
REPKE_T TYPE STRING,
SWERTTYP TYPE STRING,
SWERTTAP_T TYPE STRING,
REWHR TYPE STRING,
REWHR_T TYPE STRING,
SVBRE TYPE STRING,
SVBRE_T TYPE STRING,
VALUTA TYPE STRING,
RLDEPOT TYPE STRING,
XDKBEZ TYPE STRING,
ST_DEPOT TYPE STRING,
ST_DEPOT_N TYPE STRING,
ENTRACT TYPE STRING,
ENTRSUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMF64L200_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_RMF64L200_STR-BUKRS sy-vline 
WA_RMF64L200_STR-BUKRS_T sy-vline 
WA_RMF64L200_STR-RANL sy-vline 
WA_RMF64L200_STR-KURZBEZ sy-vline 
WA_RMF64L200_STR-RSPLITN sy-vline 
WA_RMF64L200_STR-GSART sy-vline 
WA_RMF64L200_STR-GSART_T sy-vline 
WA_RMF64L200_STR-REPKE sy-vline 
WA_RMF64L200_STR-REPKE_T sy-vline 
WA_RMF64L200_STR-SWERTTYP sy-vline 
WA_RMF64L200_STR-SWERTTAP_T sy-vline 
WA_RMF64L200_STR-REWHR sy-vline 
WA_RMF64L200_STR-REWHR_T sy-vline 
WA_RMF64L200_STR-SVBRE sy-vline 
WA_RMF64L200_STR-SVBRE_T sy-vline 
WA_RMF64L200_STR-VALUTA sy-vline 
WA_RMF64L200_STR-RLDEPOT sy-vline 
WA_RMF64L200_STR-XDKBEZ sy-vline 
WA_RMF64L200_STR-ST_DEPOT sy-vline 
WA_RMF64L200_STR-ST_DEPOT_N sy-vline 
WA_RMF64L200_STR-ENTRACT sy-vline 
WA_RMF64L200_STR-ENTRSUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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