ABAP Select data from SAP table RMF64G200 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RMF64G200 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 RMF64G200. 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 RMF64G200 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_RMF64G200 TYPE STANDARD TABLE OF RMF64G200,
      WA_RMF64G200 TYPE RMF64G200,
      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: <RMF64G200> TYPE RMF64G200.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RMF64G200.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RMF64G200
  INTO TABLE IT_RMF64G200.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMF64G200
*  INTO TABLE @DATA(IT_RMF64G2002).
*--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_RMF64G200 INDEX 1 INTO DATA(WA_RMF64G2002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RMF64G200 ASSIGNING <RMF64G200>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMF64G200>-DEPOALT = 1.
<RMF64G200>-STUECK_ALT = 1.
<RMF64G200>-BWKURS_ALT = 1.
<RMF64G200>-BNWHR_ALT = 1.
<RMF64G200>-PWKURS_ALT = 1.

ENDLOOP.

LOOP AT IT_RMF64G200 INTO WA_RMF64G200.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMF64G200-KURS_ALT, sy-vline,
  WA_RMF64G200-DEPONEU, sy-vline,
  WA_RMF64G200-STUECK_NEU, sy-vline,
  WA_RMF64G200-BWKURS_NEU, sy-vline,
  WA_RMF64G200-BNWHR_NEU, sy-vline,
  WA_RMF64G200-PWKURS_NEU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMF64G200 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_RMF64G200 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_RMF64G200 INTO WA_RMF64G200.


*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 EXCRT, internal->external for field KURS_ALT
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RMF64G200-KURS_ALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64G200-KURS_ALT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS_NEU
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RMF64G200-KURS_NEU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64G200-KURS_NEU.
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_RMF64G200_STR, 
DEPOALT TYPE STRING,
STUECK_ALT TYPE STRING,
BWKURS_ALT TYPE STRING,
BNWHR_ALT TYPE STRING,
PWKURS_ALT TYPE STRING,
KURS_ALT TYPE STRING,
DEPONEU TYPE STRING,
STUECK_NEU TYPE STRING,
BWKURS_NEU TYPE STRING,
BNWHR_NEU TYPE STRING,
PWKURS_NEU TYPE STRING,
KURS_NEU TYPE STRING,
DVALUT TYPE STRING,
STUECK_UMB TYPE STRING,
BNEWHR_UMB TYPE STRING,
BHWHR_UMB TYPE STRING,
XNEWHR_UMB TYPE STRING,
SBWHR TYPE STRING,
SNWHR TYPE STRING,
ELTEXT1 TYPE STRING,
ELTEXT2 TYPE STRING,
HLTEXT1 TYPE STRING,
HLTEXT2 TYPE STRING,
BUTXT TYPE STRING,
DEPBEZ_ALT TYPE STRING,
DEPBEZ_NEU TYPE STRING,
JVERK6B TYPE STRING,
SBEWARTALT TYPE STRING,
SBEWARTNEU TYPE STRING,
XBEWARTALT TYPE STRING,
XBEWARTNEU TYPE STRING,
DCOUPON TYPE STRING,
DFAELL TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
XZUSATZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMF64G200_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_RMF64G200_STR-DEPOALT sy-vline 
WA_RMF64G200_STR-STUECK_ALT sy-vline 
WA_RMF64G200_STR-BWKURS_ALT sy-vline 
WA_RMF64G200_STR-BNWHR_ALT sy-vline 
WA_RMF64G200_STR-PWKURS_ALT sy-vline 
WA_RMF64G200_STR-KURS_ALT sy-vline 
WA_RMF64G200_STR-DEPONEU sy-vline 
WA_RMF64G200_STR-STUECK_NEU sy-vline 
WA_RMF64G200_STR-BWKURS_NEU sy-vline 
WA_RMF64G200_STR-BNWHR_NEU sy-vline 
WA_RMF64G200_STR-PWKURS_NEU sy-vline 
WA_RMF64G200_STR-KURS_NEU sy-vline 
WA_RMF64G200_STR-DVALUT sy-vline 
WA_RMF64G200_STR-STUECK_UMB sy-vline 
WA_RMF64G200_STR-BNEWHR_UMB sy-vline 
WA_RMF64G200_STR-BHWHR_UMB sy-vline 
WA_RMF64G200_STR-XNEWHR_UMB sy-vline 
WA_RMF64G200_STR-SBWHR sy-vline 
WA_RMF64G200_STR-SNWHR sy-vline 
WA_RMF64G200_STR-ELTEXT1 sy-vline 
WA_RMF64G200_STR-ELTEXT2 sy-vline 
WA_RMF64G200_STR-HLTEXT1 sy-vline 
WA_RMF64G200_STR-HLTEXT2 sy-vline 
WA_RMF64G200_STR-BUTXT sy-vline 
WA_RMF64G200_STR-DEPBEZ_ALT sy-vline 
WA_RMF64G200_STR-DEPBEZ_NEU sy-vline 
WA_RMF64G200_STR-JVERK6B sy-vline 
WA_RMF64G200_STR-SBEWARTALT sy-vline 
WA_RMF64G200_STR-SBEWARTNEU sy-vline 
WA_RMF64G200_STR-XBEWARTALT sy-vline 
WA_RMF64G200_STR-XBEWARTNEU sy-vline 
WA_RMF64G200_STR-DCOUPON sy-vline 
WA_RMF64G200_STR-DFAELL sy-vline 
WA_RMF64G200_STR-BUDAT sy-vline 
WA_RMF64G200_STR-BLDAT sy-vline 
WA_RMF64G200_STR-XZUSATZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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