ABAP Select data from SAP table KKAE_OBJECT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KKAE_OBJECT 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_OBJECT. 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_OBJECT 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_OBJECT TYPE STANDARD TABLE OF KKAE_OBJECT,
      WA_KKAE_OBJECT TYPE KKAE_OBJECT,
      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_OBJECT> TYPE KKAE_OBJECT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKAE_OBJECT
*  INTO TABLE @DATA(IT_KKAE_OBJECT2).
*--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_OBJECT INDEX 1 INTO DATA(WA_KKAE_OBJECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKAE_OBJECT>-OBJNR = 1.
<KKAE_OBJECT>-ABGSL = 1.
<KKAE_OBJECT>-KOKRS = 1.
<KKAE_OBJECT>-BUKRS = 1.
<KKAE_OBJECT>-GSBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKAE_OBJECT-PRCTR, sy-vline,
  WA_KKAE_OBJECT-WERKS, sy-vline,
  WA_KKAE_OBJECT-VERSA, sy-vline,
  WA_KKAE_OBJECT-AUFNR, sy-vline,
  WA_KKAE_OBJECT-KOSTV, sy-vline,
  WA_KKAE_OBJECT-POSID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKAE_OBJECT 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_OBJECT 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_OBJECT INTO WA_KKAE_OBJECT.


*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_OBJECT-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJECT-PRCTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit KWOST, internal->external for field STATUS
CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT'
  EXPORTING
    input =                      WA_KKAE_OBJECT-STATUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAE_OBJECT-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_OBJECT_STR, 
OBJNR TYPE STRING,
ABGSL TYPE STRING,
KOKRS TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
WERKS TYPE STRING,
VERSA TYPE STRING,
AUFNR TYPE STRING,
KOSTV TYPE STRING,
POSID TYPE STRING,
PSPHI TYPE STRING,
PSPNR TYPE STRING,
STUFE TYPE STRING,
FKSTL TYPE STRING,
VERNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
VKORG TYPE STRING,
SPART TYPE STRING,
PROCESSING_TYPE TYPE STRING,
STATUS TYPE STRING,
CHANGED TYPE STRING,
MESSAGES TYPE STRING,
ERROR_CAUSING_OBJS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKAE_OBJECT_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_OBJECT_STR-OBJNR sy-vline 
WA_KKAE_OBJECT_STR-ABGSL sy-vline 
WA_KKAE_OBJECT_STR-KOKRS sy-vline 
WA_KKAE_OBJECT_STR-BUKRS sy-vline 
WA_KKAE_OBJECT_STR-GSBER sy-vline 
WA_KKAE_OBJECT_STR-PRCTR sy-vline 
WA_KKAE_OBJECT_STR-WERKS sy-vline 
WA_KKAE_OBJECT_STR-VERSA sy-vline 
WA_KKAE_OBJECT_STR-AUFNR sy-vline 
WA_KKAE_OBJECT_STR-KOSTV sy-vline 
WA_KKAE_OBJECT_STR-POSID sy-vline 
WA_KKAE_OBJECT_STR-PSPHI sy-vline 
WA_KKAE_OBJECT_STR-PSPNR sy-vline 
WA_KKAE_OBJECT_STR-STUFE sy-vline 
WA_KKAE_OBJECT_STR-FKSTL sy-vline 
WA_KKAE_OBJECT_STR-VERNR sy-vline 
WA_KKAE_OBJECT_STR-VBELN sy-vline 
WA_KKAE_OBJECT_STR-POSNR sy-vline 
WA_KKAE_OBJECT_STR-VKORG sy-vline 
WA_KKAE_OBJECT_STR-SPART sy-vline 
WA_KKAE_OBJECT_STR-PROCESSING_TYPE sy-vline 
WA_KKAE_OBJECT_STR-STATUS sy-vline 
WA_KKAE_OBJECT_STR-CHANGED sy-vline 
WA_KKAE_OBJECT_STR-MESSAGES sy-vline 
WA_KKAE_OBJECT_STR-ERROR_CAUSING_OBJS sy-vline      INTO ld_text SEPARATED BY SPACE.

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