ABAP Select data from SAP table FMIOICCN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMIOICCN
*  INTO TABLE @DATA(IT_FMIOICCN2).
*--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_FMIOICCN INDEX 1 INTO DATA(WA_FMIOICCN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMIOICCN>-MANDT = 1.
<FMIOICCN>-REFBN = 1.
<FMIOICCN>-REFBT = 1.
<FMIOICCN>-RFORG = 1.
<FMIOICCN>-RFPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMIOICCN-RFTYP, sy-vline,
  WA_FMIOICCN-RFSYS, sy-vline,
  WA_FMIOICCN-RLDNR, sy-vline,
  WA_FMIOICCN-CPUDT, sy-vline,
  WA_FMIOICCN-CPUTM, sy-vline,
  WA_FMIOICCN-UNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMIOICCN 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_FMIOICCN 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_FMIOICCN INTO WA_FMIOICCN.


*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_FMIOICCN-REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMIOICCN-REFBN.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMIOICCN-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMIOICCN-RLDNR.
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_FMIOICCN_STR, 
MANDT TYPE STRING,
REFBN TYPE STRING,
REFBT TYPE STRING,
RFORG TYPE STRING,
RFPOS TYPE STRING,
RFTYP TYPE STRING,
RFSYS TYPE STRING,
RLDNR TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
UNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMIOICCN_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_FMIOICCN_STR-MANDT sy-vline 
WA_FMIOICCN_STR-REFBN sy-vline 
WA_FMIOICCN_STR-REFBT sy-vline 
WA_FMIOICCN_STR-RFORG sy-vline 
WA_FMIOICCN_STR-RFPOS sy-vline 
WA_FMIOICCN_STR-RFTYP sy-vline 
WA_FMIOICCN_STR-RFSYS sy-vline 
WA_FMIOICCN_STR-RLDNR sy-vline 
WA_FMIOICCN_STR-CPUDT sy-vline 
WA_FMIOICCN_STR-CPUTM sy-vline 
WA_FMIOICCN_STR-UNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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