ABAP Select data from SAP table KKROBJ into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKROBJ
*  INTO TABLE @DATA(IT_KKROBJ2).
*--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_KKROBJ INDEX 1 INTO DATA(WA_KKROBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKROBJ>-OBJNR = 1.
<KKROBJ>-KOKRS = 1.
<KKROBJ>-WERKS = 1.
<KKROBJ>-BUKRS = 1.
<KKROBJ>-PROGR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKROBJ-MATNR, sy-vline,
  WA_KKROBJ-VERID, sy-vline,
  WA_KKROBJ-PROCNR, sy-vline,
  WA_KKROBJ-AUART, sy-vline,
  WA_KKROBJ-AUFNR, sy-vline,
  WA_KKROBJ-POSNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKROBJ 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_KKROBJ 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_KKROBJ INTO WA_KKROBJ.


*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_KKROBJ-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKROBJ-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KKROBJ-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKROBJ-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field GJPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_KKROBJ-GJPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKROBJ-GJPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABKAT, internal->external for field ABKAT
CALL FUNCTION 'CONVERSION_EXIT_ABKAT_OUTPUT'
  EXPORTING
    input =                      WA_KKROBJ-ABKAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKROBJ-ABKAT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field UNITOUT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KKROBJ-UNITOUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKROBJ-UNITOUT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KKROBJ-UNITIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKROBJ-UNITIN.
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_KKROBJ_STR, 
OBJNR TYPE STRING,
KOKRS TYPE STRING,
WERKS TYPE STRING,
BUKRS TYPE STRING,
PROGR TYPE STRING,
MATNR TYPE STRING,
VERID TYPE STRING,
PROCNR TYPE STRING,
AUART TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
KSTRG TYPE STRING,
SAFNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KOSTL TYPE STRING,
ARBPL TYPE STRING,
WERKA TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,
GJPER TYPE STRING,
WRTTP TYPE STRING,
ABKAT TYPE STRING,
BEKNZ TYPE STRING,
HERKZ TYPE STRING,
VALUTYP TYPE STRING,
PVERS TYPE STRING,
SVERS TYPE STRING,
IVERS TYPE STRING,
AGVER TYPE STRING,
ELEHK TYPE STRING,
ELEMT TYPE STRING,
WRTGS TYPE STRING,
WRTFX TYPE STRING,
KOWGS TYPE STRING,
KOWFX TYPE STRING,
KOWGSB TYPE STRING,
KOWGSO TYPE STRING,
WRTGSO TYPE STRING,
WRTGSB TYPE STRING,
OCURR TYPE STRING,
MENGEOUT TYPE STRING,
MENGEIN TYPE STRING,
KOMGOUT TYPE STRING,
KOMGIN TYPE STRING,
UNITOUT TYPE STRING,
UNITIN TYPE STRING,
DUMMY01 TYPE STRING,
DUMMY02 TYPE STRING,
DUMMY03 TYPE STRING,
DUMMY04 TYPE STRING,
DUMMY05 TYPE STRING,
DUMMY06 TYPE STRING,
DUMMY07 TYPE STRING,
DUMMY08 TYPE STRING,
DUMMY09 TYPE STRING,
DUMMY10 TYPE STRING,
DUMMY11 TYPE STRING,
DUMMY12 TYPE STRING,
DUMMY13 TYPE STRING,
DUMMY14 TYPE STRING,
DUMMY15 TYPE STRING,
DUMMY16 TYPE STRING,
DUMMY17 TYPE STRING,
DUMMY18 TYPE STRING,
DUMMY19 TYPE STRING,
DUMMY20 TYPE STRING,
DUMMY21 TYPE STRING,
DUMMY22 TYPE STRING,
DUMMY23 TYPE STRING,
DUMMY24 TYPE STRING,
DUMMY25 TYPE STRING,
DUMMY26 TYPE STRING,
DUMMY27 TYPE STRING,
DUMMY28 TYPE STRING,
DUMMY29 TYPE STRING,
DUMMY30 TYPE STRING,
DATE01 TYPE STRING,
DATE02 TYPE STRING,
DATE03 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKROBJ_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_KKROBJ_STR-OBJNR sy-vline 
WA_KKROBJ_STR-KOKRS sy-vline 
WA_KKROBJ_STR-WERKS sy-vline 
WA_KKROBJ_STR-BUKRS sy-vline 
WA_KKROBJ_STR-PROGR sy-vline 
WA_KKROBJ_STR-MATNR sy-vline 
WA_KKROBJ_STR-VERID sy-vline 
WA_KKROBJ_STR-PROCNR sy-vline 
WA_KKROBJ_STR-AUART sy-vline 
WA_KKROBJ_STR-AUFNR sy-vline 
WA_KKROBJ_STR-POSNR sy-vline 
WA_KKROBJ_STR-KSTRG sy-vline 
WA_KKROBJ_STR-SAFNR sy-vline 
WA_KKROBJ_STR-KDAUF sy-vline 
WA_KKROBJ_STR-KDPOS sy-vline 
WA_KKROBJ_STR-KOSTL sy-vline 
WA_KKROBJ_STR-ARBPL sy-vline 
WA_KKROBJ_STR-WERKA sy-vline 
WA_KKROBJ_STR-GJAHR sy-vline 
WA_KKROBJ_STR-PERIO sy-vline 
WA_KKROBJ_STR-GJPER sy-vline 
WA_KKROBJ_STR-WRTTP sy-vline 
WA_KKROBJ_STR-ABKAT sy-vline 
WA_KKROBJ_STR-BEKNZ sy-vline 
WA_KKROBJ_STR-HERKZ sy-vline 
WA_KKROBJ_STR-VALUTYP sy-vline 
WA_KKROBJ_STR-PVERS sy-vline 
WA_KKROBJ_STR-SVERS sy-vline 
WA_KKROBJ_STR-IVERS sy-vline 
WA_KKROBJ_STR-AGVER sy-vline 
WA_KKROBJ_STR-ELEHK sy-vline 
WA_KKROBJ_STR-ELEMT sy-vline 
WA_KKROBJ_STR-WRTGS sy-vline 
WA_KKROBJ_STR-WRTFX sy-vline 
WA_KKROBJ_STR-KOWGS sy-vline 
WA_KKROBJ_STR-KOWFX sy-vline 
WA_KKROBJ_STR-KOWGSB sy-vline 
WA_KKROBJ_STR-KOWGSO sy-vline 
WA_KKROBJ_STR-WRTGSO sy-vline 
WA_KKROBJ_STR-WRTGSB sy-vline 
WA_KKROBJ_STR-OCURR sy-vline 
WA_KKROBJ_STR-MENGEOUT sy-vline 
WA_KKROBJ_STR-MENGEIN sy-vline 
WA_KKROBJ_STR-KOMGOUT sy-vline 
WA_KKROBJ_STR-KOMGIN sy-vline 
WA_KKROBJ_STR-UNITOUT sy-vline 
WA_KKROBJ_STR-UNITIN sy-vline 
WA_KKROBJ_STR-DUMMY01 sy-vline 
WA_KKROBJ_STR-DUMMY02 sy-vline 
WA_KKROBJ_STR-DUMMY03 sy-vline 
WA_KKROBJ_STR-DUMMY04 sy-vline 
WA_KKROBJ_STR-DUMMY05 sy-vline 
WA_KKROBJ_STR-DUMMY06 sy-vline 
WA_KKROBJ_STR-DUMMY07 sy-vline 
WA_KKROBJ_STR-DUMMY08 sy-vline 
WA_KKROBJ_STR-DUMMY09 sy-vline 
WA_KKROBJ_STR-DUMMY10 sy-vline 
WA_KKROBJ_STR-DUMMY11 sy-vline 
WA_KKROBJ_STR-DUMMY12 sy-vline 
WA_KKROBJ_STR-DUMMY13 sy-vline 
WA_KKROBJ_STR-DUMMY14 sy-vline 
WA_KKROBJ_STR-DUMMY15 sy-vline 
WA_KKROBJ_STR-DUMMY16 sy-vline 
WA_KKROBJ_STR-DUMMY17 sy-vline 
WA_KKROBJ_STR-DUMMY18 sy-vline 
WA_KKROBJ_STR-DUMMY19 sy-vline 
WA_KKROBJ_STR-DUMMY20 sy-vline 
WA_KKROBJ_STR-DUMMY21 sy-vline 
WA_KKROBJ_STR-DUMMY22 sy-vline 
WA_KKROBJ_STR-DUMMY23 sy-vline 
WA_KKROBJ_STR-DUMMY24 sy-vline 
WA_KKROBJ_STR-DUMMY25 sy-vline 
WA_KKROBJ_STR-DUMMY26 sy-vline 
WA_KKROBJ_STR-DUMMY27 sy-vline 
WA_KKROBJ_STR-DUMMY28 sy-vline 
WA_KKROBJ_STR-DUMMY29 sy-vline 
WA_KKROBJ_STR-DUMMY30 sy-vline 
WA_KKROBJ_STR-DATE01 sy-vline 
WA_KKROBJ_STR-DATE02 sy-vline 
WA_KKROBJ_STR-DATE03 sy-vline      INTO ld_text SEPARATED BY SPACE.

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