ABAP Select data from SAP table FMOUT_RFFMRPFI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMOUT_RFFMRPFI
*  INTO TABLE @DATA(IT_FMOUT_RFFMRPFI2).
*--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_FMOUT_RFFMRPFI INDEX 1 INTO DATA(WA_FMOUT_RFFMRPFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMOUT_RFFMRPFI>-BUKRS = 1.
<FMOUT_RFFMRPFI>-KNGJAHR = 1.
<FMOUT_RFFMRPFI>-KNBELNR = 1.
<FMOUT_RFFMRPFI>-VOBUKRS = 1.
<FMOUT_RFFMRPFI>-VOGJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMOUT_RFFMRPFI-VOBELNR, sy-vline,
  WA_FMOUT_RFFMRPFI-MSGTY, sy-vline,
  WA_FMOUT_RFFMRPFI-MSGID, sy-vline,
  WA_FMOUT_RFFMRPFI-MSGNO, sy-vline,
  WA_FMOUT_RFFMRPFI-MSGV1, sy-vline,
  WA_FMOUT_RFFMRPFI-MSGV2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMOUT_RFFMRPFI 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_FMOUT_RFFMRPFI 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_FMOUT_RFFMRPFI INTO WA_FMOUT_RFFMRPFI.


*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 KNGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMOUT_RFFMRPFI-KNGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMOUT_RFFMRPFI-KNGJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMOUT_RFFMRPFI-KNBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMOUT_RFFMRPFI-KNBELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field VOGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMOUT_RFFMRPFI-VOGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMOUT_RFFMRPFI-VOGJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VOBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMOUT_RFFMRPFI-VOBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMOUT_RFFMRPFI-VOBELNR.
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_FMOUT_RFFMRPFI_STR, 
BUKRS TYPE STRING,
KNGJAHR TYPE STRING,
KNBELNR TYPE STRING,
VOBUKRS TYPE STRING,
VOGJAHR TYPE STRING,
VOBELNR TYPE STRING,
MSGTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
TEXT TYPE STRING,
LCOL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMOUT_RFFMRPFI_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_FMOUT_RFFMRPFI_STR-BUKRS sy-vline 
WA_FMOUT_RFFMRPFI_STR-KNGJAHR sy-vline 
WA_FMOUT_RFFMRPFI_STR-KNBELNR sy-vline 
WA_FMOUT_RFFMRPFI_STR-VOBUKRS sy-vline 
WA_FMOUT_RFFMRPFI_STR-VOGJAHR sy-vline 
WA_FMOUT_RFFMRPFI_STR-VOBELNR sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGTY sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGID sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGNO sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGV1 sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGV2 sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGV3 sy-vline 
WA_FMOUT_RFFMRPFI_STR-MSGV4 sy-vline 
WA_FMOUT_RFFMRPFI_STR-TEXT sy-vline 
WA_FMOUT_RFFMRPFI_STR-LCOL sy-vline      INTO ld_text SEPARATED BY SPACE.

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