ABAP Select data from SAP table CNVTDMS_05_FMIOI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNVTDMS_05_FMIOI 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 CNVTDMS_05_FMIOI. 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 CNVTDMS_05_FMIOI 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_CNVTDMS_05_FMIOI TYPE STANDARD TABLE OF CNVTDMS_05_FMIOI,
      WA_CNVTDMS_05_FMIOI TYPE CNVTDMS_05_FMIOI,
      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: <CNVTDMS_05_FMIOI> TYPE CNVTDMS_05_FMIOI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNVTDMS_05_FMIOI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNVTDMS_05_FMIOI
  INTO TABLE IT_CNVTDMS_05_FMIOI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVTDMS_05_FMIOI
*  INTO TABLE @DATA(IT_CNVTDMS_05_FMIOI2).
*--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_CNVTDMS_05_FMIOI INDEX 1 INTO DATA(WA_CNVTDMS_05_FMIOI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNVTDMS_05_FMIOI ASSIGNING <CNVTDMS_05_FMIOI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVTDMS_05_FMIOI>-MANDT = 1.
<CNVTDMS_05_FMIOI>-PACKID = 1.
<CNVTDMS_05_FMIOI>-REFBN = 1.
<CNVTDMS_05_FMIOI>-REFBT = 1.
<CNVTDMS_05_FMIOI>-RFORG = 1.

ENDLOOP.

LOOP AT IT_CNVTDMS_05_FMIOI INTO WA_CNVTDMS_05_FMIOI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVTDMS_05_FMIOI-RFPOS, sy-vline,
  WA_CNVTDMS_05_FMIOI-RFKNT, sy-vline,
  WA_CNVTDMS_05_FMIOI-RFETE, sy-vline,
  WA_CNVTDMS_05_FMIOI-RCOND, sy-vline,
  WA_CNVTDMS_05_FMIOI-RFTYP, sy-vline,
  WA_CNVTDMS_05_FMIOI-RFSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVTDMS_05_FMIOI 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_CNVTDMS_05_FMIOI 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_CNVTDMS_05_FMIOI INTO WA_CNVTDMS_05_FMIOI.


*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_CNVTDMS_05_FMIOI-REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVTDMS_05_FMIOI-REFBN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RFSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVTDMS_05_FMIOI-RFSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVTDMS_05_FMIOI-RFSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CNVTDMS_05_FMIOI-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVTDMS_05_FMIOI-GJAHR.
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_CNVTDMS_05_FMIOI_STR, 
MANDT TYPE STRING,
PACKID TYPE STRING,
REFBN TYPE STRING,
REFBT TYPE STRING,
RFORG TYPE STRING,
RFPOS TYPE STRING,
RFKNT TYPE STRING,
RFETE TYPE STRING,
RCOND TYPE STRING,
RFTYP TYPE STRING,
RFSYS TYPE STRING,
BTART TYPE STRING,
RLDNR TYPE STRING,
GJAHR TYPE STRING,
STUNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVTDMS_05_FMIOI_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_CNVTDMS_05_FMIOI_STR-MANDT sy-vline 
WA_CNVTDMS_05_FMIOI_STR-PACKID sy-vline 
WA_CNVTDMS_05_FMIOI_STR-REFBN sy-vline 
WA_CNVTDMS_05_FMIOI_STR-REFBT sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RFORG sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RFPOS sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RFKNT sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RFETE sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RCOND sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RFTYP sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RFSYS sy-vline 
WA_CNVTDMS_05_FMIOI_STR-BTART sy-vline 
WA_CNVTDMS_05_FMIOI_STR-RLDNR sy-vline 
WA_CNVTDMS_05_FMIOI_STR-GJAHR sy-vline 
WA_CNVTDMS_05_FMIOI_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.