ABAP Select data from SAP table KKAE_OBJEKT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKAE_OBJEKT
*  INTO TABLE @DATA(IT_KKAE_OBJEKT2).
*--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_KKAE_OBJEKT INDEX 1 INTO DATA(WA_KKAE_OBJEKT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKAE_OBJEKT>-OBJNR = 1.
<KKAE_OBJEKT>-AUFNR = 1.
<KKAE_OBJEKT>-CO_POSNR = 1.
<KKAE_OBJEKT>-PSPNR = 1.
<KKAE_OBJEKT>-POSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKAE_OBJEKT-STUFE, sy-vline,
  WA_KKAE_OBJEKT-VBELN, sy-vline,
  WA_KKAE_OBJEKT-SD_POSNR, sy-vline,
  WA_KKAE_OBJEKT-STATUS, sy-vline,
  WA_KKAE_OBJEKT-VERARBEITUNGSART, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_KKAE_OBJEKT 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_KKAE_OBJEKT 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_KKAE_OBJEKT INTO WA_KKAE_OBJEKT.


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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KKAE_OBJEKT-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJEKT-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_KKAE_OBJEKT-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJEKT-POSID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit KWOST, internal->external for field STATUS
CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT'
  EXPORTING
    input =                      WA_KKAE_OBJEKT-STATUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJEKT-STATUS.
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_KKAE_OBJEKT_STR, 
OBJNR TYPE STRING,
AUFNR TYPE STRING,
CO_POSNR TYPE STRING,
PSPNR TYPE STRING,
POSID TYPE STRING,
STUFE TYPE STRING,
VBELN TYPE STRING,
SD_POSNR TYPE STRING,
STATUS TYPE STRING,
VERARBEITUNGSART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKAE_OBJEKT_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_KKAE_OBJEKT_STR-OBJNR sy-vline 
WA_KKAE_OBJEKT_STR-AUFNR sy-vline 
WA_KKAE_OBJEKT_STR-CO_POSNR sy-vline 
WA_KKAE_OBJEKT_STR-PSPNR sy-vline 
WA_KKAE_OBJEKT_STR-POSID sy-vline 
WA_KKAE_OBJEKT_STR-STUFE sy-vline 
WA_KKAE_OBJEKT_STR-VBELN sy-vline 
WA_KKAE_OBJEKT_STR-SD_POSNR sy-vline 
WA_KKAE_OBJEKT_STR-STATUS sy-vline 
WA_KKAE_OBJEKT_STR-VERARBEITUNGSART sy-vline      INTO ld_text SEPARATED BY SPACE.

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