ABAP Select data from SAP table CMF_FIXOUTPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMF_FIXOUTPUT
*  INTO TABLE @DATA(IT_CMF_FIXOUTPUT2).
*--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_CMF_FIXOUTPUT INDEX 1 INTO DATA(WA_CMF_FIXOUTPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMF_FIXOUTPUT>-CMF_PROTIX = 1.
<CMF_FIXOUTPUT>-CMF_SELKZ = 1.
<CMF_FIXOUTPUT>-CMF_TABIX = 1.
<CMF_FIXOUTPUT>-CMF_LIGHTS = 1.
<CMF_FIXOUTPUT>-CMF_ARBGB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMF_FIXOUTPUT-CMF_MSGTY, sy-vline,
  WA_CMF_FIXOUTPUT-CMF_MSGNR, sy-vline,
  WA_CMF_FIXOUTPUT-CMF_TEXT, sy-vline,
  WA_CMF_FIXOUTPUT-CMF_OBJKZ, sy-vline,
  WA_CMF_FIXOUTPUT-CMF_VEBE, sy-vline,
  WA_CMF_FIXOUTPUT-CMF_VBTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMF_FIXOUTPUT 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_CMF_FIXOUTPUT 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_CMF_FIXOUTPUT INTO WA_CMF_FIXOUTPUT.


*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 CMF_SRID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMF_FIXOUTPUT-CMF_SRID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMF_FIXOUTPUT-CMF_SRID.
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_CMF_FIXOUTPUT_STR, 
CMF_PROTIX TYPE STRING,
CMF_SELKZ TYPE STRING,
CMF_TABIX TYPE STRING,
CMF_LIGHTS TYPE STRING,
CMF_ARBGB TYPE STRING,
CMF_MSGTY TYPE STRING,
CMF_MSGNR TYPE STRING,
CMF_TEXT TYPE STRING,
CMF_OBJKZ TYPE STRING,
CMF_VEBE TYPE STRING,
CMF_VBTXT TYPE STRING,
CMF_VBSPZ TYPE STRING,
CMF_GRU1 TYPE STRING,
CMF_GRU2 TYPE STRING,
CMF_COUNT TYPE STRING,
CMF_CONTROLLABLE TYPE STRING,
CMF_MSGEXITCALL TYPE STRING,
CMF_MSGEXITCALLICON TYPE STRING,
CMF_VALUE_1 TYPE STRING,
CMF_SRID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMF_FIXOUTPUT_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_CMF_FIXOUTPUT_STR-CMF_PROTIX sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_SELKZ sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_TABIX sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_LIGHTS sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_ARBGB sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_MSGTY sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_MSGNR sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_TEXT sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_OBJKZ sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_VEBE sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_VBTXT sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_VBSPZ sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_GRU1 sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_GRU2 sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_COUNT sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_CONTROLLABLE sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_MSGEXITCALL sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_MSGEXITCALLICON sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_VALUE_1 sy-vline 
WA_CMF_FIXOUTPUT_STR-CMF_SRID sy-vline      INTO ld_text SEPARATED BY SPACE.

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