ABAP Select data from SAP table FKKPNBK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKPNBK
*  INTO TABLE @DATA(IT_FKKPNBK2).
*--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_FKKPNBK INDEX 1 INTO DATA(WA_FKKPNBK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKPNBK>-MANDT = 1.
<FKKPNBK>-SRTF1 = 1.
<FKKPNBK>-GPART = 1.
<FKKPNBK>-MASTY = 1.
<FKKPNBK>-MASRF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKPNBK-BKVID, sy-vline,
  WA_FKKPNBK-AEDAT, sy-vline,
  WA_FKKPNBK-AETIM, sy-vline,
  WA_FKKPNBK-PNREF, sy-vline,
  WA_FKKPNBK-ZBNKS, sy-vline,
  WA_FKKPNBK-ZBNKL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKPNBK 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_FKKPNBK 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_FKKPNBK INTO WA_FKKPNBK.


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

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

*Conversion exit ALPHA, internal->external for field ABWRA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKPNBK-ABWRA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKPNBK-ABWRA.
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_FKKPNBK_STR, 
MANDT TYPE STRING,
SRTF1 TYPE STRING,
GPART TYPE STRING,
MASTY TYPE STRING,
MASRF TYPE STRING,
BKVID TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
PNREF TYPE STRING,
ZBNKS TYPE STRING,
ZBNKL TYPE STRING,
ZBNKN TYPE STRING,
BKONT TYPE STRING,
BKREF TYPE STRING,
ZNME1 TYPE STRING,
STAPN TYPE STRING,
STAPR TYPE STRING,
OPBUK TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
BNKID TYPE STRING,
FDATE TYPE STRING,
NOBLK TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
XVORL TYPE STRING,
AENAM TYPE STRING,
TCODE TYPE STRING,
XUPDH TYPE STRING,
XEINZ TYPE STRING,
ABWRE TYPE STRING,
ABWRA TYPE STRING,
PNORI TYPE STRING,
RTDAT TYPE STRING,
RTCOD TYPE STRING,
RTTXT TYPE STRING,
VKONA_BR TYPE STRING,
PYMET_BR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKPNBK_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_FKKPNBK_STR-MANDT sy-vline 
WA_FKKPNBK_STR-SRTF1 sy-vline 
WA_FKKPNBK_STR-GPART sy-vline 
WA_FKKPNBK_STR-MASTY sy-vline 
WA_FKKPNBK_STR-MASRF sy-vline 
WA_FKKPNBK_STR-BKVID sy-vline 
WA_FKKPNBK_STR-AEDAT sy-vline 
WA_FKKPNBK_STR-AETIM sy-vline 
WA_FKKPNBK_STR-PNREF sy-vline 
WA_FKKPNBK_STR-ZBNKS sy-vline 
WA_FKKPNBK_STR-ZBNKL sy-vline 
WA_FKKPNBK_STR-ZBNKN sy-vline 
WA_FKKPNBK_STR-BKONT sy-vline 
WA_FKKPNBK_STR-BKREF sy-vline 
WA_FKKPNBK_STR-ZNME1 sy-vline 
WA_FKKPNBK_STR-STAPN sy-vline 
WA_FKKPNBK_STR-STAPR sy-vline 
WA_FKKPNBK_STR-OPBUK sy-vline 
WA_FKKPNBK_STR-HBKID sy-vline 
WA_FKKPNBK_STR-HKTID sy-vline 
WA_FKKPNBK_STR-BNKID sy-vline 
WA_FKKPNBK_STR-FDATE sy-vline 
WA_FKKPNBK_STR-NOBLK sy-vline 
WA_FKKPNBK_STR-LAUFD sy-vline 
WA_FKKPNBK_STR-LAUFI sy-vline 
WA_FKKPNBK_STR-XVORL sy-vline 
WA_FKKPNBK_STR-AENAM sy-vline 
WA_FKKPNBK_STR-TCODE sy-vline 
WA_FKKPNBK_STR-XUPDH sy-vline 
WA_FKKPNBK_STR-XEINZ sy-vline 
WA_FKKPNBK_STR-ABWRE sy-vline 
WA_FKKPNBK_STR-ABWRA sy-vline 
WA_FKKPNBK_STR-PNORI sy-vline 
WA_FKKPNBK_STR-RTDAT sy-vline 
WA_FKKPNBK_STR-RTCOD sy-vline 
WA_FKKPNBK_STR-RTTXT sy-vline 
WA_FKKPNBK_STR-VKONA_BR sy-vline 
WA_FKKPNBK_STR-PYMET_BR sy-vline      INTO ld_text SEPARATED BY SPACE.

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