ABAP Select data from SAP table IDCN_S_AR_AGING_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCN_S_AR_AGING_HEADER
*  INTO TABLE @DATA(IT_IDCN_S_AR_AGING_HEADER2).
*--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_IDCN_S_AR_AGING_HEADER INDEX 1 INTO DATA(WA_IDCN_S_AR_AGING_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCN_S_AR_AGING_HEADER>-BUKRS = 1.
<IDCN_S_AR_AGING_HEADER>-BUTXT = 1.
<IDCN_S_AR_AGING_HEADER>-KUNNR = 1.
<IDCN_S_AR_AGING_HEADER>-NAME1 = 1.
<IDCN_S_AR_AGING_HEADER>-HKONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCN_S_AR_AGING_HEADER-TXT20, sy-vline,
  WA_IDCN_S_AR_AGING_HEADER-KKBER, sy-vline,
  WA_IDCN_S_AR_AGING_HEADER-DELTA, sy-vline,
  WA_IDCN_S_AR_AGING_HEADER-CREDIT, sy-vline,
  WA_IDCN_S_AR_AGING_HEADER-AMOUNT, sy-vline,
  WA_IDCN_S_AR_AGING_HEADER-HWAER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCN_S_AR_AGING_HEADER 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_IDCN_S_AR_AGING_HEADER 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_IDCN_S_AR_AGING_HEADER INTO WA_IDCN_S_AR_AGING_HEADER.


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

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

*Conversion exit AU152, internal->external for field DELTA
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-DELTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-DELTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field CREDIT
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-CREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-CREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-AMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT0
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT0
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT0.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT1
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT2
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT3
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT4
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT5
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT6
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT7
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SEGMENT8
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-SEGMENT8
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-SEGMENT8.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field FB_SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDCN_S_AR_AGING_HEADER-FB_SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCN_S_AR_AGING_HEADER-FB_SEGMENT.
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_IDCN_S_AR_AGING_HEADER_STR, 
BUKRS TYPE STRING,
BUTXT TYPE STRING,
KUNNR TYPE STRING,
NAME1 TYPE STRING,
HKONT TYPE STRING,
TXT20 TYPE STRING,
KKBER TYPE STRING,
DELTA TYPE STRING,
CREDIT TYPE STRING,
AMOUNT TYPE STRING,
HWAER TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
SEGMENT TYPE STRING,
PERCENT TYPE STRING,
SEGMENT0 TYPE STRING,
PERCENT0 TYPE STRING,
SEGMENT1 TYPE STRING,
PERCENT1 TYPE STRING,
SEGMENT2 TYPE STRING,
PERCENT2 TYPE STRING,
SEGMENT3 TYPE STRING,
PERCENT3 TYPE STRING,
SEGMENT4 TYPE STRING,
PERCENT4 TYPE STRING,
SEGMENT5 TYPE STRING,
PERCENT5 TYPE STRING,
SEGMENT6 TYPE STRING,
PERCENT6 TYPE STRING,
SEGMENT7 TYPE STRING,
PERCENT7 TYPE STRING,
SEGMENT8 TYPE STRING,
PERCENT8 TYPE STRING,
FB_PRCTR TYPE STRING,
FB_SEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCN_S_AR_AGING_HEADER_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_IDCN_S_AR_AGING_HEADER_STR-BUKRS sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-BUTXT sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-KUNNR sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-NAME1 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-HKONT sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-TXT20 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-KKBER sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-DELTA sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-CREDIT sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-AMOUNT sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-HWAER sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-WRBTR sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-WAERS sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT0 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT0 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT1 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT1 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT2 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT2 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT3 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT3 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT4 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT4 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT5 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT5 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT6 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT6 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT7 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT7 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-SEGMENT8 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-PERCENT8 sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-FB_PRCTR sy-vline 
WA_IDCN_S_AR_AGING_HEADER_STR-FB_SEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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