ABAP Select data from SAP table FMFI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMFI 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 FMFI. 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 FMFI 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_FMFI TYPE STANDARD TABLE OF FMFI,
      WA_FMFI TYPE FMFI,
      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: <FMFI> TYPE FMFI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFI
*  INTO TABLE @DATA(IT_FMFI2).
*--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_FMFI INDEX 1 INTO DATA(WA_FMFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFI>-FMBELNR = 1.
<FMFI>-FMBUZEI = 1.
<FMFI>-WRTTP = 1.
<FMFI>-WTEXT = 1.
<FMFI>-BTART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFI-BTEXT, sy-vline,
  WA_FMFI-STATS, sy-vline,
  WA_FMFI-STATT, sy-vline,
  WA_FMFI-RRCTY, sy-vline,
  WA_FMFI-BLART, sy-vline,
  WA_FMFI-GJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFI 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_FMFI 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_FMFI INTO WA_FMFI.


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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_FMFI-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFI-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_FMFI-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFI-VORNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VREFBN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMFI-VREFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFI-VREFBN.
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_FMFI_STR, 
FMBELNR TYPE STRING,
FMBUZEI TYPE STRING,
WRTTP TYPE STRING,
WTEXT TYPE STRING,
BTART TYPE STRING,
BTEXT TYPE STRING,
STATS TYPE STRING,
STATT TYPE STRING,
RRCTY TYPE STRING,
BLART TYPE STRING,
GJAHR TYPE STRING,
GNJHR TYPE STRING,
PERIO TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
ZHLDT TYPE STRING,
PSOBT TYPE STRING,
TRANR TYPE STRING,
CTRNR TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
SGTXT TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
VOGJAHR TYPE STRING,
VOBELNR TYPE STRING,
VOBUZEI TYPE STRING,
KNGJAHR TYPE STRING,
KNBELNR TYPE STRING,
KNBUZEI TYPE STRING,
FAREA TYPE STRING,
FTEXT TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
KTEXT TYPE STRING,
AUFNR TYPE STRING,
ATEXT TYPE STRING,
POSID TYPE STRING,
POST1 TYPE STRING,
PRCTR TYPE STRING,
PRCTRT TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
FWAER TYPE STRING,
FKBTRC TYPE STRING,
FKBTRP TYPE STRING,
TWAER TYPE STRING,
TRBTRC TYPE STRING,
TRBTRP TYPE STRING,
SKNTO TYPE STRING,
RDIFF TYPE STRING,
XREVS TYPE STRING,
VRGNG TYPE STRING,
VTEXT TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
AWSYS TYPE STRING,
VREFBT TYPE STRING,
VREFBN TYPE STRING,
VRFPOS TYPE STRING,
VRFKNT TYPE STRING,
CF_FLAG TYPE STRING,
CFSTAT TYPE STRING,
CFSTATSV TYPE STRING,
CFCNT TYPE STRING,
CFLEV TYPE STRING,
USERDIM TYPE STRING,
STUNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFI_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_FMFI_STR-FMBELNR sy-vline 
WA_FMFI_STR-FMBUZEI sy-vline 
WA_FMFI_STR-WRTTP sy-vline 
WA_FMFI_STR-WTEXT sy-vline 
WA_FMFI_STR-BTART sy-vline 
WA_FMFI_STR-BTEXT sy-vline 
WA_FMFI_STR-STATS sy-vline 
WA_FMFI_STR-STATT sy-vline 
WA_FMFI_STR-RRCTY sy-vline 
WA_FMFI_STR-BLART sy-vline 
WA_FMFI_STR-GJAHR sy-vline 
WA_FMFI_STR-GNJHR sy-vline 
WA_FMFI_STR-PERIO sy-vline 
WA_FMFI_STR-BLDAT sy-vline 
WA_FMFI_STR-BUDAT sy-vline 
WA_FMFI_STR-ZHLDT sy-vline 
WA_FMFI_STR-PSOBT sy-vline 
WA_FMFI_STR-TRANR sy-vline 
WA_FMFI_STR-CTRNR sy-vline 
WA_FMFI_STR-BUKRS sy-vline 
WA_FMFI_STR-HKONT sy-vline 
WA_FMFI_STR-SGTXT sy-vline 
WA_FMFI_STR-KUNNR sy-vline 
WA_FMFI_STR-LIFNR sy-vline 
WA_FMFI_STR-VOGJAHR sy-vline 
WA_FMFI_STR-VOBELNR sy-vline 
WA_FMFI_STR-VOBUZEI sy-vline 
WA_FMFI_STR-KNGJAHR sy-vline 
WA_FMFI_STR-KNBELNR sy-vline 
WA_FMFI_STR-KNBUZEI sy-vline 
WA_FMFI_STR-FAREA sy-vline 
WA_FMFI_STR-FTEXT sy-vline 
WA_FMFI_STR-KOKRS sy-vline 
WA_FMFI_STR-KOSTL sy-vline 
WA_FMFI_STR-KTEXT sy-vline 
WA_FMFI_STR-AUFNR sy-vline 
WA_FMFI_STR-ATEXT sy-vline 
WA_FMFI_STR-POSID sy-vline 
WA_FMFI_STR-POST1 sy-vline 
WA_FMFI_STR-PRCTR sy-vline 
WA_FMFI_STR-PRCTRT sy-vline 
WA_FMFI_STR-NPLNR sy-vline 
WA_FMFI_STR-VORNR sy-vline 
WA_FMFI_STR-FWAER sy-vline 
WA_FMFI_STR-FKBTRC sy-vline 
WA_FMFI_STR-FKBTRP sy-vline 
WA_FMFI_STR-TWAER sy-vline 
WA_FMFI_STR-TRBTRC sy-vline 
WA_FMFI_STR-TRBTRP sy-vline 
WA_FMFI_STR-SKNTO sy-vline 
WA_FMFI_STR-RDIFF sy-vline 
WA_FMFI_STR-XREVS sy-vline 
WA_FMFI_STR-VRGNG sy-vline 
WA_FMFI_STR-VTEXT sy-vline 
WA_FMFI_STR-AWTYP sy-vline 
WA_FMFI_STR-AWREF sy-vline 
WA_FMFI_STR-AWORG sy-vline 
WA_FMFI_STR-AWSYS sy-vline 
WA_FMFI_STR-VREFBT sy-vline 
WA_FMFI_STR-VREFBN sy-vline 
WA_FMFI_STR-VRFPOS sy-vline 
WA_FMFI_STR-VRFKNT sy-vline 
WA_FMFI_STR-CF_FLAG sy-vline 
WA_FMFI_STR-CFSTAT sy-vline 
WA_FMFI_STR-CFSTATSV sy-vline 
WA_FMFI_STR-CFCNT sy-vline 
WA_FMFI_STR-CFLEV sy-vline 
WA_FMFI_STR-USERDIM sy-vline 
WA_FMFI_STR-STUNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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