ABAP Select data from SAP table DKOKP 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 DKOKP 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 DKOKP. 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 DKOKP 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_DKOKP TYPE STANDARD TABLE OF DKOKP,
      WA_DKOKP TYPE DKOKP,
      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: <DKOKP> TYPE DKOKP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DKOKP
*  INTO TABLE @DATA(IT_DKOKP2).
*--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_DKOKP INDEX 1 INTO DATA(WA_DKOKP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DKOKP>-MANDT = 1.
<DKOKP>-KOART = 1.
<DKOKP>-BUKRS = 1.
<DKOKP>-KONTO = 1.
<DKOKP>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DKOKP-BELNR, sy-vline,
  WA_DKOKP-BUZEI, sy-vline,
  WA_DKOKP-EMPFG, sy-vline,
  WA_DKOKP-UMSKS, sy-vline,
  WA_DKOKP-UMSAT, sy-vline,
  WA_DKOKP-HKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DKOKP 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_DKOKP 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_DKOKP INTO WA_DKOKP.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit AC132, internal->external for field MWSHB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_DKOKP-MWSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DKOKP-MWSHB.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit AC132, internal->external for field MDSHB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_DKOKP-MDSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DKOKP-MDSHB.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REBZG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DKOKP-REBZG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DKOKP-REBZG.
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_DKOKP_STR, 
MANDT TYPE STRING,
KOART TYPE STRING,
BUKRS TYPE STRING,
KONTO TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
EMPFG TYPE STRING,
UMSKS TYPE STRING,
UMSAT TYPE STRING,
HKONT TYPE STRING,
AUGDT TYPE STRING,
AUGBL TYPE STRING,
BUPEM TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
AUGCP TYPE STRING,
WAERS TYPE STRING,
XBLNR TYPE STRING,
ALTKZ TYPE STRING,
ALTKT TYPE STRING,
USNAM TYPE STRING,
STAKZ TYPE STRING,
DBBLG TYPE STRING,
AEDAT TYPE STRING,
UPDDT TYPE STRING,
BKTXT TYPE STRING,
XKRES TYPE STRING,
XOPVW TYPE STRING,
BSCHL TYPE STRING,
UMSKZ TYPE STRING,
XUMSW TYPE STRING,
SHKZG TYPE STRING,
MWSKZ TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
MWSTS TYPE STRING,
WMWST TYPE STRING,
MWSHB TYPE STRING,
XZAHL TYPE STRING,
ZINKZ TYPE STRING,
GSBER TYPE STRING,
SAKNR TYPE STRING,
FILKD TYPE STRING,
SKNTO TYPE STRING,
WSKTO TYPE STRING,
ZUONR TYPE STRING,
NETDT TYPE STRING,
ZFBDT TYPE STRING,
SKFBT TYPE STRING,
MDSHB TYPE STRING,
HWBAS TYPE STRING,
VALUT TYPE STRING,
FWBAS TYPE STRING,
BSTNR TYPE STRING,
SGTXT TYPE STRING,
GKART TYPE STRING,
GKONT TYPE STRING,
ZLSCH TYPE STRING,
MSCHL TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2T TYPE STRING,
ZBD2P TYPE STRING,
ZBD3T TYPE STRING,
NEBTR TYPE STRING,
QSSKZ TYPE STRING,
REBZG TYPE STRING,
REBZZ TYPE STRING,
XCPDK TYPE STRING,
BVORG TYPE STRING,
XNEGP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DKOKP_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_DKOKP_STR-MANDT sy-vline 
WA_DKOKP_STR-KOART sy-vline 
WA_DKOKP_STR-BUKRS sy-vline 
WA_DKOKP_STR-KONTO sy-vline 
WA_DKOKP_STR-GJAHR sy-vline 
WA_DKOKP_STR-BELNR sy-vline 
WA_DKOKP_STR-BUZEI sy-vline 
WA_DKOKP_STR-EMPFG sy-vline 
WA_DKOKP_STR-UMSKS sy-vline 
WA_DKOKP_STR-UMSAT sy-vline 
WA_DKOKP_STR-HKONT sy-vline 
WA_DKOKP_STR-AUGDT sy-vline 
WA_DKOKP_STR-AUGBL sy-vline 
WA_DKOKP_STR-BUPEM sy-vline 
WA_DKOKP_STR-BUDAT sy-vline 
WA_DKOKP_STR-CPUDT sy-vline 
WA_DKOKP_STR-BLART sy-vline 
WA_DKOKP_STR-BLDAT sy-vline 
WA_DKOKP_STR-AUGCP sy-vline 
WA_DKOKP_STR-WAERS sy-vline 
WA_DKOKP_STR-XBLNR sy-vline 
WA_DKOKP_STR-ALTKZ sy-vline 
WA_DKOKP_STR-ALTKT sy-vline 
WA_DKOKP_STR-USNAM sy-vline 
WA_DKOKP_STR-STAKZ sy-vline 
WA_DKOKP_STR-DBBLG sy-vline 
WA_DKOKP_STR-AEDAT sy-vline 
WA_DKOKP_STR-UPDDT sy-vline 
WA_DKOKP_STR-BKTXT sy-vline 
WA_DKOKP_STR-XKRES sy-vline 
WA_DKOKP_STR-XOPVW sy-vline 
WA_DKOKP_STR-BSCHL sy-vline 
WA_DKOKP_STR-UMSKZ sy-vline 
WA_DKOKP_STR-XUMSW sy-vline 
WA_DKOKP_STR-SHKZG sy-vline 
WA_DKOKP_STR-MWSKZ sy-vline 
WA_DKOKP_STR-DMBTR sy-vline 
WA_DKOKP_STR-WRBTR sy-vline 
WA_DKOKP_STR-MWSTS sy-vline 
WA_DKOKP_STR-WMWST sy-vline 
WA_DKOKP_STR-MWSHB sy-vline 
WA_DKOKP_STR-XZAHL sy-vline 
WA_DKOKP_STR-ZINKZ sy-vline 
WA_DKOKP_STR-GSBER sy-vline 
WA_DKOKP_STR-SAKNR sy-vline 
WA_DKOKP_STR-FILKD sy-vline 
WA_DKOKP_STR-SKNTO sy-vline 
WA_DKOKP_STR-WSKTO sy-vline 
WA_DKOKP_STR-ZUONR sy-vline 
WA_DKOKP_STR-NETDT sy-vline 
WA_DKOKP_STR-ZFBDT sy-vline 
WA_DKOKP_STR-SKFBT sy-vline 
WA_DKOKP_STR-MDSHB sy-vline 
WA_DKOKP_STR-HWBAS sy-vline 
WA_DKOKP_STR-VALUT sy-vline 
WA_DKOKP_STR-FWBAS sy-vline 
WA_DKOKP_STR-BSTNR sy-vline 
WA_DKOKP_STR-SGTXT sy-vline 
WA_DKOKP_STR-GKART sy-vline 
WA_DKOKP_STR-GKONT sy-vline 
WA_DKOKP_STR-ZLSCH sy-vline 
WA_DKOKP_STR-MSCHL sy-vline 
WA_DKOKP_STR-ZTERM sy-vline 
WA_DKOKP_STR-ZBD1T sy-vline 
WA_DKOKP_STR-ZBD1P sy-vline 
WA_DKOKP_STR-ZBD2T sy-vline 
WA_DKOKP_STR-ZBD2P sy-vline 
WA_DKOKP_STR-ZBD3T sy-vline 
WA_DKOKP_STR-NEBTR sy-vline 
WA_DKOKP_STR-QSSKZ sy-vline 
WA_DKOKP_STR-REBZG sy-vline 
WA_DKOKP_STR-REBZZ sy-vline 
WA_DKOKP_STR-XCPDK sy-vline 
WA_DKOKP_STR-BVORG sy-vline 
WA_DKOKP_STR-XNEGP sy-vline      INTO ld_text SEPARATED BY SPACE.

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