ABAP Select data from SAP table FMCO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCO
*  INTO TABLE @DATA(IT_FMCO2).
*--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_FMCO INDEX 1 INTO DATA(WA_FMCO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCO>-REFBN = 1.
<FMCO>-RFPOS = 1.
<FMCO>-WRTTP = 1.
<FMCO>-WTEXT = 1.
<FMCO>-BTART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCO-BTEXT, sy-vline,
  WA_FMCO-STATS, sy-vline,
  WA_FMCO-STATT, sy-vline,
  WA_FMCO-RRCTY, sy-vline,
  WA_FMCO-RVERS, sy-vline,
  WA_FMCO-RVRGNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCO 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_FMCO 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_FMCO INTO WA_FMCO.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCO-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCO-LOGSYS.
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_FMCO_STR, 
REFBN TYPE STRING,
RFPOS TYPE STRING,
WRTTP TYPE STRING,
WTEXT TYPE STRING,
BTART TYPE STRING,
BTEXT TYPE STRING,
STATS TYPE STRING,
STATT TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
RVRGNG TYPE STRING,
VTEXT TYPE STRING,
GJAHR TYPE STRING,
GNJHR TYPE STRING,
PERIO TYPE STRING,
ZHLDT TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
SGTXT TYPE STRING,
FMBELNR TYPE STRING,
FMBUZEI 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,
DISTKEY TYPE STRING,
CF_FLAG TYPE STRING,
CFLEV TYPE STRING,
RUSERDIM TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
LOGSYS TYPE STRING,
FWAER TYPE STRING,
FKBTRC TYPE STRING,
FKBTRP TYPE STRING,
TWAER TYPE STRING,
TRBTRC TYPE STRING,
TRBTRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCO_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_FMCO_STR-REFBN sy-vline 
WA_FMCO_STR-RFPOS sy-vline 
WA_FMCO_STR-WRTTP sy-vline 
WA_FMCO_STR-WTEXT sy-vline 
WA_FMCO_STR-BTART sy-vline 
WA_FMCO_STR-BTEXT sy-vline 
WA_FMCO_STR-STATS sy-vline 
WA_FMCO_STR-STATT sy-vline 
WA_FMCO_STR-RRCTY sy-vline 
WA_FMCO_STR-RVERS sy-vline 
WA_FMCO_STR-RVRGNG sy-vline 
WA_FMCO_STR-VTEXT sy-vline 
WA_FMCO_STR-GJAHR sy-vline 
WA_FMCO_STR-GNJHR sy-vline 
WA_FMCO_STR-PERIO sy-vline 
WA_FMCO_STR-ZHLDT sy-vline 
WA_FMCO_STR-BUKRS sy-vline 
WA_FMCO_STR-HKONT sy-vline 
WA_FMCO_STR-SGTXT sy-vline 
WA_FMCO_STR-FMBELNR sy-vline 
WA_FMCO_STR-FMBUZEI sy-vline 
WA_FMCO_STR-FAREA sy-vline 
WA_FMCO_STR-FTEXT sy-vline 
WA_FMCO_STR-KOKRS sy-vline 
WA_FMCO_STR-KOSTL sy-vline 
WA_FMCO_STR-KTEXT sy-vline 
WA_FMCO_STR-AUFNR sy-vline 
WA_FMCO_STR-ATEXT sy-vline 
WA_FMCO_STR-POSID sy-vline 
WA_FMCO_STR-POST1 sy-vline 
WA_FMCO_STR-PRCTR sy-vline 
WA_FMCO_STR-PRCTRT sy-vline 
WA_FMCO_STR-NPLNR sy-vline 
WA_FMCO_STR-VORNR sy-vline 
WA_FMCO_STR-DISTKEY sy-vline 
WA_FMCO_STR-CF_FLAG sy-vline 
WA_FMCO_STR-CFLEV sy-vline 
WA_FMCO_STR-RUSERDIM sy-vline 
WA_FMCO_STR-AWTYP sy-vline 
WA_FMCO_STR-AWORG sy-vline 
WA_FMCO_STR-LOGSYS sy-vline 
WA_FMCO_STR-FWAER sy-vline 
WA_FMCO_STR-FKBTRC sy-vline 
WA_FMCO_STR-FKBTRP sy-vline 
WA_FMCO_STR-TWAER sy-vline 
WA_FMCO_STR-TRBTRC sy-vline 
WA_FMCO_STR-TRBTRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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