ABAP Select data from SAP table DFKKDEFREV_POS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKDEFREV_POS
*  INTO TABLE @DATA(IT_DFKKDEFREV_POS2).
*--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_DFKKDEFREV_POS INDEX 1 INTO DATA(WA_DFKKDEFREV_POS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKDEFREV_POS>-MANDT = 1.
<DFKKDEFREV_POS>-OPBEL = 1.
<DFKKDEFREV_POS>-CTYPE = 1.
<DFKKDEFREV_POS>-XGUID = 1.
<DFKKDEFREV_POS>-OPUPZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKDEFREV_POS-OPUPK, sy-vline,
  WA_DFKKDEFREV_POS-PDATE, sy-vline,
  WA_DFKKDEFREV_POS-PDATR, sy-vline,
  WA_DFKKDEFREV_POS-BUKRS, sy-vline,
  WA_DFKKDEFREV_POS-BETRH, sy-vline,
  WA_DFKKDEFREV_POS-BETRW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKDEFREV_POS 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_DFKKDEFREV_POS 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_DFKKDEFREV_POS INTO WA_DFKKDEFREV_POS.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field QTY_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DFKKDEFREV_POS-QTY_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKDEFREV_POS-QTY_UNIT.
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_DFKKDEFREV_POS_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
CTYPE TYPE STRING,
XGUID TYPE STRING,
OPUPZ TYPE STRING,
OPUPK TYPE STRING,
PDATE TYPE STRING,
PDATR TYPE STRING,
BUKRS TYPE STRING,
BETRH TYPE STRING,
BETRW TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
BETRW_TRIG TYPE STRING,
BETRHA TYPE STRING,
BETRA TYPE STRING,
BETR2A TYPE STRING,
BETR3A TYPE STRING,
WAERS TYPE STRING,
MENGE TYPE STRING,
MENGE_TRIG TYPE STRING,
MEINS TYPE STRING,
MWSKZ TYPE STRING,
VBUND TYPE STRING,
HKONT_DR TYPE STRING,
GSBER_DR TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
KOSTL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
PS_PSP_PNR TYPE STRING,
PAOBJNR TYPE STRING,
AUFNR TYPE STRING,
KONTL TYPE STRING,
KONTT TYPE STRING,
BUPLA TYPE STRING,
NEGBU TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
FIKEY TYPE STRING,
STFLG TYPE STRING,
POSTED TYPE STRING,
SATYP TYPE STRING,
ACCHG TYPE STRING,
INVDOCNO TYPE STRING,
BILLDOCNO TYPE STRING,
REF03 TYPE STRING,
ORIGN TYPE STRING,
EVDAT TYPE STRING,
OPBEL_WOFF TYPE STRING,
ASSKY TYPE STRING,
VKONT TYPE STRING,
HKONT_DR_FSTAT TYPE STRING,
TXJCD TYPE STRING,
QTY_UNIT TYPE STRING,
QUANTITY TYPE STRING,
QUANTITY_REM TYPE STRING,
QUANTITY_TRIG TYPE STRING,
ACCDET_BY_EVENT TYPE STRING,
LC1RT TYPE STRING,
LC2RT TYPE STRING,
LC3RT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKDEFREV_POS_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_DFKKDEFREV_POS_STR-MANDT sy-vline 
WA_DFKKDEFREV_POS_STR-OPBEL sy-vline 
WA_DFKKDEFREV_POS_STR-CTYPE sy-vline 
WA_DFKKDEFREV_POS_STR-XGUID sy-vline 
WA_DFKKDEFREV_POS_STR-OPUPZ sy-vline 
WA_DFKKDEFREV_POS_STR-OPUPK sy-vline 
WA_DFKKDEFREV_POS_STR-PDATE sy-vline 
WA_DFKKDEFREV_POS_STR-PDATR sy-vline 
WA_DFKKDEFREV_POS_STR-BUKRS sy-vline 
WA_DFKKDEFREV_POS_STR-BETRH sy-vline 
WA_DFKKDEFREV_POS_STR-BETRW sy-vline 
WA_DFKKDEFREV_POS_STR-BETR2 sy-vline 
WA_DFKKDEFREV_POS_STR-BETR3 sy-vline 
WA_DFKKDEFREV_POS_STR-BETRW_TRIG sy-vline 
WA_DFKKDEFREV_POS_STR-BETRHA sy-vline 
WA_DFKKDEFREV_POS_STR-BETRA sy-vline 
WA_DFKKDEFREV_POS_STR-BETR2A sy-vline 
WA_DFKKDEFREV_POS_STR-BETR3A sy-vline 
WA_DFKKDEFREV_POS_STR-WAERS sy-vline 
WA_DFKKDEFREV_POS_STR-MENGE sy-vline 
WA_DFKKDEFREV_POS_STR-MENGE_TRIG sy-vline 
WA_DFKKDEFREV_POS_STR-MEINS sy-vline 
WA_DFKKDEFREV_POS_STR-MWSKZ sy-vline 
WA_DFKKDEFREV_POS_STR-VBUND sy-vline 
WA_DFKKDEFREV_POS_STR-HKONT_DR sy-vline 
WA_DFKKDEFREV_POS_STR-GSBER_DR sy-vline 
WA_DFKKDEFREV_POS_STR-HKONT sy-vline 
WA_DFKKDEFREV_POS_STR-GSBER sy-vline 
WA_DFKKDEFREV_POS_STR-SEGMENT sy-vline 
WA_DFKKDEFREV_POS_STR-PRCTR sy-vline 
WA_DFKKDEFREV_POS_STR-KOSTL sy-vline 
WA_DFKKDEFREV_POS_STR-KDAUF sy-vline 
WA_DFKKDEFREV_POS_STR-KDPOS sy-vline 
WA_DFKKDEFREV_POS_STR-KDEIN sy-vline 
WA_DFKKDEFREV_POS_STR-PS_PSP_PNR sy-vline 
WA_DFKKDEFREV_POS_STR-PAOBJNR sy-vline 
WA_DFKKDEFREV_POS_STR-AUFNR sy-vline 
WA_DFKKDEFREV_POS_STR-KONTL sy-vline 
WA_DFKKDEFREV_POS_STR-KONTT sy-vline 
WA_DFKKDEFREV_POS_STR-BUPLA sy-vline 
WA_DFKKDEFREV_POS_STR-NEGBU sy-vline 
WA_DFKKDEFREV_POS_STR-LAUFD sy-vline 
WA_DFKKDEFREV_POS_STR-LAUFI sy-vline 
WA_DFKKDEFREV_POS_STR-FIKEY sy-vline 
WA_DFKKDEFREV_POS_STR-STFLG sy-vline 
WA_DFKKDEFREV_POS_STR-POSTED sy-vline 
WA_DFKKDEFREV_POS_STR-SATYP sy-vline 
WA_DFKKDEFREV_POS_STR-ACCHG sy-vline 
WA_DFKKDEFREV_POS_STR-INVDOCNO sy-vline 
WA_DFKKDEFREV_POS_STR-BILLDOCNO sy-vline 
WA_DFKKDEFREV_POS_STR-REF03 sy-vline 
WA_DFKKDEFREV_POS_STR-ORIGN sy-vline 
WA_DFKKDEFREV_POS_STR-EVDAT sy-vline 
WA_DFKKDEFREV_POS_STR-OPBEL_WOFF sy-vline 
WA_DFKKDEFREV_POS_STR-ASSKY sy-vline 
WA_DFKKDEFREV_POS_STR-VKONT sy-vline 
WA_DFKKDEFREV_POS_STR-HKONT_DR_FSTAT sy-vline 
WA_DFKKDEFREV_POS_STR-TXJCD sy-vline 
WA_DFKKDEFREV_POS_STR-QTY_UNIT sy-vline 
WA_DFKKDEFREV_POS_STR-QUANTITY sy-vline 
WA_DFKKDEFREV_POS_STR-QUANTITY_REM sy-vline 
WA_DFKKDEFREV_POS_STR-QUANTITY_TRIG sy-vline 
WA_DFKKDEFREV_POS_STR-ACCDET_BY_EVENT sy-vline 
WA_DFKKDEFREV_POS_STR-LC1RT sy-vline 
WA_DFKKDEFREV_POS_STR-LC2RT sy-vline 
WA_DFKKDEFREV_POS_STR-LC3RT sy-vline      INTO ld_text SEPARATED BY SPACE.

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