ABAP Select data from SAP table RMF64C300 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RMF64C300 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 RMF64C300. 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 RMF64C300 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_RMF64C300 TYPE STANDARD TABLE OF RMF64C300,
      WA_RMF64C300 TYPE RMF64C300,
      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: <RMF64C300> TYPE RMF64C300.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RMF64C300.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RMF64C300
  INTO TABLE IT_RMF64C300.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMF64C300
*  INTO TABLE @DATA(IT_RMF64C3002).
*--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_RMF64C300 INDEX 1 INTO DATA(WA_RMF64C3002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RMF64C300 ASSIGNING <RMF64C300>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMF64C300>-RLDEPO = 1.
<RMF64C300>-XLDEPO = 1.
<RMF64C300>-ASTUECK = 1.
<RMF64C300>-ABEZ = 1.
<RMF64C300>-SEINBU = 1.

ENDLOOP.

LOOP AT IT_RMF64C300 INTO WA_RMF64C300.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMF64C300-BBUCHAB, sy-vline,
  WA_RMF64C300-BBUCHABD, sy-vline,
  WA_RMF64C300-EBBUCHAB, sy-vline,
  WA_RMF64C300-EBBUCHABD, sy-vline,
  WA_RMF64C300-BBEZWERT, sy-vline,
  WA_RMF64C300-BBEZWERTD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMF64C300 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_RMF64C300 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_RMF64C300 INTO WA_RMF64C300.


*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 FWBUKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RMF64C300-FWBUKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64C300-FWBUKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field FWANKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RMF64C300-FWANKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64C300-FWANKURS.
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_RMF64C300_STR, 
RLDEPO TYPE STRING,
XLDEPO TYPE STRING,
ASTUECK TYPE STRING,
ABEZ TYPE STRING,
SEINBU TYPE STRING,
BBUCHAB TYPE STRING,
BBUCHABD TYPE STRING,
EBBUCHAB TYPE STRING,
EBBUCHABD TYPE STRING,
BBEZWERT TYPE STRING,
BBEZWERTD TYPE STRING,
EBBEZWERT TYPE STRING,
EBBEZWERTD TYPE STRING,
BBUKUALT TYPE STRING,
BBUKUNEU TYPE STRING,
EBBUKUALT TYPE STRING,
EBBUKUNEU TYPE STRING,
BSAKUALT TYPE STRING,
BSAKUNEU TYPE STRING,
EBSAKUALT TYPE STRING,
EBSAKUNEU TYPE STRING,
FWBUKURS TYPE STRING,
FWANKURS TYPE STRING,
SABWHR TYPE STRING,
SEABWHR TYPE STRING,
SHWHR TYPE STRING,
SEWHR TYPE STRING,
SEWHR2 TYPE STRING,
SHWHR2 TYPE STRING,
ELTEXT1 TYPE STRING,
HLTEXT1 TYPE STRING,
ELTEXT2 TYPE STRING,
HLTEXT2 TYPE STRING,
DVALUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMF64C300_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_RMF64C300_STR-RLDEPO sy-vline 
WA_RMF64C300_STR-XLDEPO sy-vline 
WA_RMF64C300_STR-ASTUECK sy-vline 
WA_RMF64C300_STR-ABEZ sy-vline 
WA_RMF64C300_STR-SEINBU sy-vline 
WA_RMF64C300_STR-BBUCHAB sy-vline 
WA_RMF64C300_STR-BBUCHABD sy-vline 
WA_RMF64C300_STR-EBBUCHAB sy-vline 
WA_RMF64C300_STR-EBBUCHABD sy-vline 
WA_RMF64C300_STR-BBEZWERT sy-vline 
WA_RMF64C300_STR-BBEZWERTD sy-vline 
WA_RMF64C300_STR-EBBEZWERT sy-vline 
WA_RMF64C300_STR-EBBEZWERTD sy-vline 
WA_RMF64C300_STR-BBUKUALT sy-vline 
WA_RMF64C300_STR-BBUKUNEU sy-vline 
WA_RMF64C300_STR-EBBUKUALT sy-vline 
WA_RMF64C300_STR-EBBUKUNEU sy-vline 
WA_RMF64C300_STR-BSAKUALT sy-vline 
WA_RMF64C300_STR-BSAKUNEU sy-vline 
WA_RMF64C300_STR-EBSAKUALT sy-vline 
WA_RMF64C300_STR-EBSAKUNEU sy-vline 
WA_RMF64C300_STR-FWBUKURS sy-vline 
WA_RMF64C300_STR-FWANKURS sy-vline 
WA_RMF64C300_STR-SABWHR sy-vline 
WA_RMF64C300_STR-SEABWHR sy-vline 
WA_RMF64C300_STR-SHWHR sy-vline 
WA_RMF64C300_STR-SEWHR sy-vline 
WA_RMF64C300_STR-SEWHR2 sy-vline 
WA_RMF64C300_STR-SHWHR2 sy-vline 
WA_RMF64C300_STR-ELTEXT1 sy-vline 
WA_RMF64C300_STR-HLTEXT1 sy-vline 
WA_RMF64C300_STR-ELTEXT2 sy-vline 
WA_RMF64C300_STR-HLTEXT2 sy-vline 
WA_RMF64C300_STR-DVALUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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