ABAP Select data from SAP table WDFR_ABN_IND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WDFR_ABN_IND
*  INTO TABLE @DATA(IT_WDFR_ABN_IND2).
*--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_WDFR_ABN_IND INDEX 1 INTO DATA(WA_WDFR_ABN_IND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WDFR_ABN_IND>-WERKS = 1.
<WDFR_ABN_IND>-DISPNR = 1.
<WDFR_ABN_IND>-ABNNR = 1.
<WDFR_ABN_IND>-MATNR = 1.
<WDFR_ABN_IND>-LOCNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WDFR_ABN_IND-TABIX, sy-vline,
  WA_WDFR_ABN_IND-SELKZ, sy-vline,
  WA_WDFR_ABN_IND-IBELN, sy-vline,
  WA_WDFR_ABN_IND-IPOSN, sy-vline,
  WA_WDFR_ABN_IND-IPOSB, sy-vline,
  WA_WDFR_ABN_IND-IPOSA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WDFR_ABN_IND 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_WDFR_ABN_IND 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_WDFR_ABN_IND INTO WA_WDFR_ABN_IND.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WDFR_ABN_IND-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WDFR_ABN_IND-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field IBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WDFR_ABN_IND-IBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WDFR_ABN_IND-IBELN.
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_WDFR_ABN_IND_STR, 
WERKS TYPE STRING,
DISPNR TYPE STRING,
ABNNR TYPE STRING,
MATNR TYPE STRING,
LOCNR TYPE STRING,
TABIX TYPE STRING,
SELKZ TYPE STRING,
IBELN TYPE STRING,
IPOSN TYPE STRING,
IPOSB TYPE STRING,
IPOSA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WDFR_ABN_IND_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_WDFR_ABN_IND_STR-WERKS sy-vline 
WA_WDFR_ABN_IND_STR-DISPNR sy-vline 
WA_WDFR_ABN_IND_STR-ABNNR sy-vline 
WA_WDFR_ABN_IND_STR-MATNR sy-vline 
WA_WDFR_ABN_IND_STR-LOCNR sy-vline 
WA_WDFR_ABN_IND_STR-TABIX sy-vline 
WA_WDFR_ABN_IND_STR-SELKZ sy-vline 
WA_WDFR_ABN_IND_STR-IBELN sy-vline 
WA_WDFR_ABN_IND_STR-IPOSN sy-vline 
WA_WDFR_ABN_IND_STR-IPOSB sy-vline 
WA_WDFR_ABN_IND_STR-IPOSA sy-vline      INTO ld_text SEPARATED BY SPACE.

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