ABAP Select data from SAP table CFCOM into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFCOM
*  INTO TABLE @DATA(IT_CFCOM2).
*--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_CFCOM INDEX 1 INTO DATA(WA_CFCOM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFCOM>-MANDT = 1.
<CFCOM>-VERSIO = 1.
<CFCOM>-PLACTI = 1.
<CFCOM>-YEARB = 1.
<CFCOM>-PERDE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFCOM-DATA01, sy-vline,
  WA_CFCOM-DATA02, sy-vline,
  WA_CFCOM-DATA03, sy-vline,
  WA_CFCOM-DATA04, sy-vline,
  WA_CFCOM-DATA05, sy-vline,
  WA_CFCOM-DATA06, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFCOM 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_CFCOM 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_CFCOM INTO WA_CFCOM.


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

*Conversion exit GJAHR, internal->external for field YEARB
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CFCOM-YEARB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFCOM-YEARB.
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_CFCOM_STR, 
MANDT TYPE STRING,
VERSIO TYPE STRING,
PLACTI TYPE STRING,
YEARB TYPE STRING,
PERDE TYPE STRING,
DATA01 TYPE STRING,
DATA02 TYPE STRING,
DATA03 TYPE STRING,
DATA04 TYPE STRING,
DATA05 TYPE STRING,
DATA06 TYPE STRING,
DATA07 TYPE STRING,
DATA08 TYPE STRING,
DATA09 TYPE STRING,
DATA10 TYPE STRING,
DATA11 TYPE STRING,
DATA12 TYPE STRING,
DATA13 TYPE STRING,
DATA14 TYPE STRING,
DATA15 TYPE STRING,
DATA16 TYPE STRING,
DATA17 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFCOM_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_CFCOM_STR-MANDT sy-vline 
WA_CFCOM_STR-VERSIO sy-vline 
WA_CFCOM_STR-PLACTI sy-vline 
WA_CFCOM_STR-YEARB sy-vline 
WA_CFCOM_STR-PERDE sy-vline 
WA_CFCOM_STR-DATA01 sy-vline 
WA_CFCOM_STR-DATA02 sy-vline 
WA_CFCOM_STR-DATA03 sy-vline 
WA_CFCOM_STR-DATA04 sy-vline 
WA_CFCOM_STR-DATA05 sy-vline 
WA_CFCOM_STR-DATA06 sy-vline 
WA_CFCOM_STR-DATA07 sy-vline 
WA_CFCOM_STR-DATA08 sy-vline 
WA_CFCOM_STR-DATA09 sy-vline 
WA_CFCOM_STR-DATA10 sy-vline 
WA_CFCOM_STR-DATA11 sy-vline 
WA_CFCOM_STR-DATA12 sy-vline 
WA_CFCOM_STR-DATA13 sy-vline 
WA_CFCOM_STR-DATA14 sy-vline 
WA_CFCOM_STR-DATA15 sy-vline 
WA_CFCOM_STR-DATA16 sy-vline 
WA_CFCOM_STR-DATA17 sy-vline      INTO ld_text SEPARATED BY SPACE.

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