ABAP Select data from SAP table DFKKZP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKZP
*  INTO TABLE @DATA(IT_DFKKZP2).
*--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_DFKKZP INDEX 1 INTO DATA(WA_DFKKZP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKZP>-MANDT = 1.
<DFKKZP>-KEYZ1 = 1.
<DFKKZP>-POSZA = 1.
<DFKKZP>-SELT1 = 1.
<DFKKZP>-SELT2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKZP-SELT3, sy-vline,
  WA_DFKKZP-SELW1, sy-vline,
  WA_DFKKZP-SELW2, sy-vline,
  WA_DFKKZP-SELW3, sy-vline,
  WA_DFKKZP-BETRZ, sy-vline,
  WA_DFKKZP-BETRH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKZP 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_DFKKZP 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_DFKKZP INTO WA_DFKKZP.


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

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

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_DFKKZP-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKZP-KURSF.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field RUEBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKZP-RUEBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKZP-RUEBL.
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_DFKKZP_STR, 
MANDT TYPE STRING,
KEYZ1 TYPE STRING,
POSZA TYPE STRING,
SELT1 TYPE STRING,
SELT2 TYPE STRING,
SELT3 TYPE STRING,
SELW1 TYPE STRING,
SELW2 TYPE STRING,
SELW3 TYPE STRING,
BETRZ TYPE STRING,
BETRH TYPE STRING,
BETRK TYPE STRING,
BETRL TYPE STRING,
XTKLA TYPE STRING,
TBETR TYPE STRING,
FIKEY TYPE STRING,
BVRKO TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
BLART TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
VALUT TYPE STRING,
XEIPH TYPE STRING,
AUGRD TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
XRUES TYPE STRING,
XAKON TYPE STRING,
XKLAE TYPE STRING,
KLAEB TYPE STRING,
KLAEH TYPE STRING,
KLAED TYPE STRING,
KLAEC TYPE STRING,
OPBEL TYPE STRING,
UPOSZ TYPE STRING,
UPOSV TYPE STRING,
TXTVW TYPE STRING,
CHCKN TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
KOINH TYPE STRING,
XPGRO TYPE STRING,
XDAUB TYPE STRING,
NRZAA TYPE STRING,
REPYM TYPE STRING,
XCLAR TYPE STRING,
INFOF TYPE STRING,
KUKON TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
MERCH TYPE STRING,
RUEBL TYPE STRING,
RUEAR TYPE STRING,
BKREF TYPE STRING,
TXTRZ TYPE STRING,
HZUON TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
AUNUM TYPE STRING,
AUDAT TYPE STRING,
AUTIM TYPE STRING,
XATTS TYPE STRING,
CGUID TYPE STRING,
ENCTP TYPE STRING,
BEGRU TYPE STRING,
IBAN TYPE STRING,
SWIFT TYPE STRING,
PGUID TYPE STRING,
ISDAT TYPE STRING,
ESNUM TYPE STRING,
LNKID TYPE STRING,
ML_STATUS TYPE STRING,
XML_CLEARED TYPE STRING,
KEYPP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKZP_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_DFKKZP_STR-MANDT sy-vline 
WA_DFKKZP_STR-KEYZ1 sy-vline 
WA_DFKKZP_STR-POSZA sy-vline 
WA_DFKKZP_STR-SELT1 sy-vline 
WA_DFKKZP_STR-SELT2 sy-vline 
WA_DFKKZP_STR-SELT3 sy-vline 
WA_DFKKZP_STR-SELW1 sy-vline 
WA_DFKKZP_STR-SELW2 sy-vline 
WA_DFKKZP_STR-SELW3 sy-vline 
WA_DFKKZP_STR-BETRZ sy-vline 
WA_DFKKZP_STR-BETRH sy-vline 
WA_DFKKZP_STR-BETRK sy-vline 
WA_DFKKZP_STR-BETRL sy-vline 
WA_DFKKZP_STR-XTKLA sy-vline 
WA_DFKKZP_STR-TBETR sy-vline 
WA_DFKKZP_STR-FIKEY sy-vline 
WA_DFKKZP_STR-BVRKO sy-vline 
WA_DFKKZP_STR-BUKRS sy-vline 
WA_DFKKZP_STR-GSBER sy-vline 
WA_DFKKZP_STR-PRCTR sy-vline 
WA_DFKKZP_STR-BLART sy-vline 
WA_DFKKZP_STR-WAERS sy-vline 
WA_DFKKZP_STR-KURSF sy-vline 
WA_DFKKZP_STR-BUDAT sy-vline 
WA_DFKKZP_STR-BLDAT sy-vline 
WA_DFKKZP_STR-VALUT sy-vline 
WA_DFKKZP_STR-XEIPH sy-vline 
WA_DFKKZP_STR-AUGRD sy-vline 
WA_DFKKZP_STR-AENAM sy-vline 
WA_DFKKZP_STR-AEDAT sy-vline 
WA_DFKKZP_STR-AETIM sy-vline 
WA_DFKKZP_STR-XRUES sy-vline 
WA_DFKKZP_STR-XAKON sy-vline 
WA_DFKKZP_STR-XKLAE sy-vline 
WA_DFKKZP_STR-KLAEB sy-vline 
WA_DFKKZP_STR-KLAEH sy-vline 
WA_DFKKZP_STR-KLAED sy-vline 
WA_DFKKZP_STR-KLAEC sy-vline 
WA_DFKKZP_STR-OPBEL sy-vline 
WA_DFKKZP_STR-UPOSZ sy-vline 
WA_DFKKZP_STR-UPOSV sy-vline 
WA_DFKKZP_STR-TXTVW sy-vline 
WA_DFKKZP_STR-CHCKN sy-vline 
WA_DFKKZP_STR-BANKS sy-vline 
WA_DFKKZP_STR-BANKL sy-vline 
WA_DFKKZP_STR-BANKN sy-vline 
WA_DFKKZP_STR-BKONT sy-vline 
WA_DFKKZP_STR-KOINH sy-vline 
WA_DFKKZP_STR-XPGRO sy-vline 
WA_DFKKZP_STR-XDAUB sy-vline 
WA_DFKKZP_STR-NRZAA sy-vline 
WA_DFKKZP_STR-REPYM sy-vline 
WA_DFKKZP_STR-XCLAR sy-vline 
WA_DFKKZP_STR-INFOF sy-vline 
WA_DFKKZP_STR-KUKON sy-vline 
WA_DFKKZP_STR-CCINS sy-vline 
WA_DFKKZP_STR-CCNUM sy-vline 
WA_DFKKZP_STR-MERCH sy-vline 
WA_DFKKZP_STR-RUEBL sy-vline 
WA_DFKKZP_STR-RUEAR sy-vline 
WA_DFKKZP_STR-BKREF sy-vline 
WA_DFKKZP_STR-TXTRZ sy-vline 
WA_DFKKZP_STR-HZUON sy-vline 
WA_DFKKZP_STR-DATAB sy-vline 
WA_DFKKZP_STR-DATBI sy-vline 
WA_DFKKZP_STR-AUNUM sy-vline 
WA_DFKKZP_STR-AUDAT sy-vline 
WA_DFKKZP_STR-AUTIM sy-vline 
WA_DFKKZP_STR-XATTS sy-vline 
WA_DFKKZP_STR-CGUID sy-vline 
WA_DFKKZP_STR-ENCTP sy-vline 
WA_DFKKZP_STR-BEGRU sy-vline 
WA_DFKKZP_STR-IBAN sy-vline 
WA_DFKKZP_STR-SWIFT sy-vline 
WA_DFKKZP_STR-PGUID sy-vline 
WA_DFKKZP_STR-ISDAT sy-vline 
WA_DFKKZP_STR-ESNUM sy-vline 
WA_DFKKZP_STR-LNKID sy-vline 
WA_DFKKZP_STR-ML_STATUS sy-vline 
WA_DFKKZP_STR-XML_CLEARED sy-vline 
WA_DFKKZP_STR-KEYPP sy-vline      INTO ld_text SEPARATED BY SPACE.

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