ABAP Select data from SAP table DFKKCFDUNTEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKCFDUNTEL
*  INTO TABLE @DATA(IT_DFKKCFDUNTEL2).
*--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_DFKKCFDUNTEL INDEX 1 INTO DATA(WA_DFKKCFDUNTEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKCFDUNTEL>-MANDT = 1.
<DFKKCFDUNTEL>-TELGPART = 1.
<DFKKCFDUNTEL>-LAUFD = 1.
<DFKKCFDUNTEL>-LAUFI = 1.
<DFKKCFDUNTEL>-GPART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKCFDUNTEL-VKONT, sy-vline,
  WA_DFKKCFDUNTEL-MAZAE, sy-vline,
  WA_DFKKCFDUNTEL-AKZAE, sy-vline,
  WA_DFKKCFDUNTEL-COTYP, sy-vline,
  WA_DFKKCFDUNTEL-VTREF, sy-vline,
  WA_DFKKCFDUNTEL-OPBUK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKCFDUNTEL 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_DFKKCFDUNTEL 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_DFKKCFDUNTEL INTO WA_DFKKCFDUNTEL.


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

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

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

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKCFDUNTEL-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKCFDUNTEL-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKNT1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKCFDUNTEL-VKNT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKCFDUNTEL-VKNT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PERSR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKCFDUNTEL-PERSR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKCFDUNTEL-PERSR.
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_DFKKCFDUNTEL_STR, 
MANDT TYPE STRING,
TELGPART TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
MAZAE TYPE STRING,
AKZAE TYPE STRING,
COTYP TYPE STRING,
VTREF TYPE STRING,
OPBUK TYPE STRING,
STDBK TYPE STRING,
MAHNV TYPE STRING,
MAHNS TYPE STRING,
STRAT TYPE STRING,
STEP TYPE STRING,
WAERS TYPE STRING,
MSALM TYPE STRING,
AUSDT TYPE STRING,
PERSNUMBER TYPE STRING,
ADRNR TYPE STRING,
SPRAS TYPE STRING,
TELNR1 TYPE STRING,
TELNR2 TYPE STRING,
CLERK TYPE STRING,
HAS_PRIO TYPE STRING,
VKNT1 TYPE STRING,
COKEY TYPE STRING,
PERSR TYPE STRING,
STATE TYPE STRING,
LOCK_USER TYPE STRING,
LOCK_LIMIT TYPE STRING,
WORKSTATE TYPE STRING,
RESUBMIT_DATE TYPE STRING,
WF_COUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKCFDUNTEL_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_DFKKCFDUNTEL_STR-MANDT sy-vline 
WA_DFKKCFDUNTEL_STR-TELGPART sy-vline 
WA_DFKKCFDUNTEL_STR-LAUFD sy-vline 
WA_DFKKCFDUNTEL_STR-LAUFI sy-vline 
WA_DFKKCFDUNTEL_STR-GPART sy-vline 
WA_DFKKCFDUNTEL_STR-VKONT sy-vline 
WA_DFKKCFDUNTEL_STR-MAZAE sy-vline 
WA_DFKKCFDUNTEL_STR-AKZAE sy-vline 
WA_DFKKCFDUNTEL_STR-COTYP sy-vline 
WA_DFKKCFDUNTEL_STR-VTREF sy-vline 
WA_DFKKCFDUNTEL_STR-OPBUK sy-vline 
WA_DFKKCFDUNTEL_STR-STDBK sy-vline 
WA_DFKKCFDUNTEL_STR-MAHNV sy-vline 
WA_DFKKCFDUNTEL_STR-MAHNS sy-vline 
WA_DFKKCFDUNTEL_STR-STRAT sy-vline 
WA_DFKKCFDUNTEL_STR-STEP sy-vline 
WA_DFKKCFDUNTEL_STR-WAERS sy-vline 
WA_DFKKCFDUNTEL_STR-MSALM sy-vline 
WA_DFKKCFDUNTEL_STR-AUSDT sy-vline 
WA_DFKKCFDUNTEL_STR-PERSNUMBER sy-vline 
WA_DFKKCFDUNTEL_STR-ADRNR sy-vline 
WA_DFKKCFDUNTEL_STR-SPRAS sy-vline 
WA_DFKKCFDUNTEL_STR-TELNR1 sy-vline 
WA_DFKKCFDUNTEL_STR-TELNR2 sy-vline 
WA_DFKKCFDUNTEL_STR-CLERK sy-vline 
WA_DFKKCFDUNTEL_STR-HAS_PRIO sy-vline 
WA_DFKKCFDUNTEL_STR-VKNT1 sy-vline 
WA_DFKKCFDUNTEL_STR-COKEY sy-vline 
WA_DFKKCFDUNTEL_STR-PERSR sy-vline 
WA_DFKKCFDUNTEL_STR-STATE sy-vline 
WA_DFKKCFDUNTEL_STR-LOCK_USER sy-vline 
WA_DFKKCFDUNTEL_STR-LOCK_LIMIT sy-vline 
WA_DFKKCFDUNTEL_STR-WORKSTATE sy-vline 
WA_DFKKCFDUNTEL_STR-RESUBMIT_DATE sy-vline 
WA_DFKKCFDUNTEL_STR-WF_COUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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