ABAP Select data from SAP table FMCFSI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCFSI
*  INTO TABLE @DATA(IT_FMCFSI2).
*--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_FMCFSI INDEX 1 INTO DATA(WA_FMCFSI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCFSI>-MANDT = 1.
<FMCFSI>-LEDNR = 1.
<FMCFSI>-FIKRS = 1.
<FMCFSI>-BELNR = 1.
<FMCFSI>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCFSI-XREAL, sy-vline,
  WA_FMCFSI-GJAHR, sy-vline,
  WA_FMCFSI-BELNRZ, sy-vline,
  WA_FMCFSI-BUZEIZ, sy-vline,
  WA_FMCFSI-TWAER, sy-vline,
  WA_FMCFSI-LDBTR_CF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCFSI 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_FMCFSI 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_FMCFSI INTO WA_FMCFSI.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCFSI-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCFSI-WRTTP.
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_FMCFSI_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
FIKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
XREAL TYPE STRING,
GJAHR TYPE STRING,
BELNRZ TYPE STRING,
BUZEIZ TYPE STRING,
TWAER TYPE STRING,
LDBTR_CF TYPE STRING,
TRBTR_CF TYPE STRING,
BELNR_REF TYPE STRING,
BUZEI_REF TYPE STRING,
ZEKKN_REF TYPE STRING,
ETENR_REF TYPE STRING,
STUNR_REF TYPE STRING,
ZAEHK_REF TYPE STRING,
WRTTP TYPE STRING,
CFSTAT TYPE STRING,
CPUDTSEL TYPE STRING,
CPUTMSEL TYPE STRING,
UNAMESEL TYPE STRING,
CPUDTCF TYPE STRING,
CPUTMCF TYPE STRING,
UNAMECF TYPE STRING,
OBJNR TYPE STRING,
POSIT TYPE STRING,
GEBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCFSI_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_FMCFSI_STR-MANDT sy-vline 
WA_FMCFSI_STR-LEDNR sy-vline 
WA_FMCFSI_STR-FIKRS sy-vline 
WA_FMCFSI_STR-BELNR sy-vline 
WA_FMCFSI_STR-BUZEI sy-vline 
WA_FMCFSI_STR-XREAL sy-vline 
WA_FMCFSI_STR-GJAHR sy-vline 
WA_FMCFSI_STR-BELNRZ sy-vline 
WA_FMCFSI_STR-BUZEIZ sy-vline 
WA_FMCFSI_STR-TWAER sy-vline 
WA_FMCFSI_STR-LDBTR_CF sy-vline 
WA_FMCFSI_STR-TRBTR_CF sy-vline 
WA_FMCFSI_STR-BELNR_REF sy-vline 
WA_FMCFSI_STR-BUZEI_REF sy-vline 
WA_FMCFSI_STR-ZEKKN_REF sy-vline 
WA_FMCFSI_STR-ETENR_REF sy-vline 
WA_FMCFSI_STR-STUNR_REF sy-vline 
WA_FMCFSI_STR-ZAEHK_REF sy-vline 
WA_FMCFSI_STR-WRTTP sy-vline 
WA_FMCFSI_STR-CFSTAT sy-vline 
WA_FMCFSI_STR-CPUDTSEL sy-vline 
WA_FMCFSI_STR-CPUTMSEL sy-vline 
WA_FMCFSI_STR-UNAMESEL sy-vline 
WA_FMCFSI_STR-CPUDTCF sy-vline 
WA_FMCFSI_STR-CPUTMCF sy-vline 
WA_FMCFSI_STR-UNAMECF sy-vline 
WA_FMCFSI_STR-OBJNR sy-vline 
WA_FMCFSI_STR-POSIT sy-vline 
WA_FMCFSI_STR-GEBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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