ABAP Select data from SAP table CDUNNFOROUTPDETN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDUNNFOROUTPDETN
*  INTO TABLE @DATA(IT_CDUNNFOROUTPDETN2).
*--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_CDUNNFOROUTPDETN INDEX 1 INTO DATA(WA_CDUNNFOROUTPDETN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDUNNFOROUTPDETN>-MANDT = 1.
<CDUNNFOROUTPDETN>-DUNNINGRUNDATE = 1.
<CDUNNFOROUTPDETN>-DUNNINGRUN = 1.
<CDUNNFOROUTPDETN>-FINANCIALACCOUNTTYPE = 1.
<CDUNNFOROUTPDETN>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDUNNFOROUTPDETN-CUSTOMER, sy-vline,
  WA_CDUNNFOROUTPDETN-SUPPLIER, sy-vline,
  WA_CDUNNFOROUTPDETN-ONETIMEACCTBANKACCOUNT, sy-vline,
  WA_CDUNNFOROUTPDETN-CUSTOMERHEADOFFICE, sy-vline,
  WA_CDUNNFOROUTPDETN-GROUPINGDUNNINGAREA, sy-vline,
  WA_CDUNNFOROUTPDETN-GROUPINGDUNNINGLEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDUNNFOROUTPDETN 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_CDUNNFOROUTPDETN 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_CDUNNFOROUTPDETN INTO WA_CDUNNFOROUTPDETN.


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

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

*Conversion exit ALPHA, internal->external for field CUSTOMERHEADOFFICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDUNNFOROUTPDETN-CUSTOMERHEADOFFICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDUNNFOROUTPDETN-CUSTOMERHEADOFFICE.
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_CDUNNFOROUTPDETN_STR, 
MANDT TYPE STRING,
DUNNINGRUNDATE TYPE STRING,
DUNNINGRUN TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
ONETIMEACCTBANKACCOUNT TYPE STRING,
CUSTOMERHEADOFFICE TYPE STRING,
GROUPINGDUNNINGAREA TYPE STRING,
GROUPINGDUNNINGLEVEL TYPE STRING,
DUNNINGCLERK TYPE STRING,
OUTPUTCHANNEL TYPE STRING,
DUNNINGPROCEDURE TYPE STRING,
DUNNINGLEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDUNNFOROUTPDETN_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_CDUNNFOROUTPDETN_STR-MANDT sy-vline 
WA_CDUNNFOROUTPDETN_STR-DUNNINGRUNDATE sy-vline 
WA_CDUNNFOROUTPDETN_STR-DUNNINGRUN sy-vline 
WA_CDUNNFOROUTPDETN_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_CDUNNFOROUTPDETN_STR-COMPANYCODE sy-vline 
WA_CDUNNFOROUTPDETN_STR-CUSTOMER sy-vline 
WA_CDUNNFOROUTPDETN_STR-SUPPLIER sy-vline 
WA_CDUNNFOROUTPDETN_STR-ONETIMEACCTBANKACCOUNT sy-vline 
WA_CDUNNFOROUTPDETN_STR-CUSTOMERHEADOFFICE sy-vline 
WA_CDUNNFOROUTPDETN_STR-GROUPINGDUNNINGAREA sy-vline 
WA_CDUNNFOROUTPDETN_STR-GROUPINGDUNNINGLEVEL sy-vline 
WA_CDUNNFOROUTPDETN_STR-DUNNINGCLERK sy-vline 
WA_CDUNNFOROUTPDETN_STR-OUTPUTCHANNEL sy-vline 
WA_CDUNNFOROUTPDETN_STR-DUNNINGPROCEDURE sy-vline 
WA_CDUNNFOROUTPDETN_STR-DUNNINGLEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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