ABAP Select data from SAP table KKAE_OBJEKT_STAMM 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_STAMM 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_STAMM. 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_STAMM 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_STAMM TYPE STANDARD TABLE OF KKAE_OBJEKT_STAMM,
      WA_KKAE_OBJEKT_STAMM TYPE KKAE_OBJEKT_STAMM,
      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_STAMM> TYPE KKAE_OBJEKT_STAMM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKAE_OBJEKT_STAMM
*  INTO TABLE @DATA(IT_KKAE_OBJEKT_STAMM2).
*--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_STAMM INDEX 1 INTO DATA(WA_KKAE_OBJEKT_STAMM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKAE_OBJEKT_STAMM>-KOKRS = 1.
<KKAE_OBJEKT_STAMM>-BUKRS = 1.
<KKAE_OBJEKT_STAMM>-GSBER = 1.
<KKAE_OBJEKT_STAMM>-PRCTR = 1.
<KKAE_OBJEKT_STAMM>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKAE_OBJEKT_STAMM-ABGSL, sy-vline,
  WA_KKAE_OBJEKT_STAMM-KOSTV, sy-vline,
  WA_KKAE_OBJEKT_STAMM-PSPHI, sy-vline,
  WA_KKAE_OBJEKT_STAMM-FKOKR, sy-vline,
  WA_KKAE_OBJEKT_STAMM-FKSTL, sy-vline,
  WA_KKAE_OBJEKT_STAMM-VERNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKAE_OBJEKT_STAMM 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_STAMM 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_STAMM INTO WA_KKAE_OBJEKT_STAMM.


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

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

*Conversion exit KONPD, internal->external for field PSPHI
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_KKAE_OBJEKT_STAMM-PSPHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJEKT_STAMM-PSPHI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FKSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAE_OBJEKT_STAMM-FKSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJEKT_STAMM-FKSTL.
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_STAMM_STR, 
KOKRS TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
WERKS TYPE STRING,
ABGSL TYPE STRING,
KOSTV TYPE STRING,
PSPHI TYPE STRING,
FKOKR TYPE STRING,
FKSTL TYPE STRING,
VERNR TYPE STRING,
VKORG TYPE STRING,
SPART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKAE_OBJEKT_STAMM_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_STAMM_STR-KOKRS sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-BUKRS sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-GSBER sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-PRCTR sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-WERKS sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-ABGSL sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-KOSTV sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-PSPHI sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-FKOKR sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-FKSTL sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-VERNR sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-VKORG sy-vline 
WA_KKAE_OBJEKT_STAMM_STR-SPART sy-vline      INTO ld_text SEPARATED BY SPACE.

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