ABAP Select data from SAP table FKKPREPACCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKPREPACCD
*  INTO TABLE @DATA(IT_FKKPREPACCD2).
*--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_FKKPREPACCD INDEX 1 INTO DATA(WA_FKKPREPACCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKPREPACCD>-PPACC = 1.
<FKKPREPACCD>-GPARTT = 1.
<FKKPREPACCD>-VKONTT = 1.
<FKKPREPACCD>-STDBK = 1.
<FKKPREPACCD>-STDBKT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKPREPACCD-BEGRU, sy-vline,
  WA_FKKPREPACCD-WAERST, sy-vline,
  WA_FKKPREPACCD-ABWRET, sy-vline,
  WA_FKKPREPACCD-PPPTBT, sy-vline,
  WA_FKKPREPACCD-XNOPAY, sy-vline,
  WA_FKKPREPACCD-XNOPAYT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKPREPACCD 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_FKKPREPACCD 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_FKKPREPACCD INTO WA_FKKPREPACCD.


*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 PPACC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKPREPACCD-PPACC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKPREPACCD-PPACC.
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_FKKPREPACCD_STR, 
PPACC TYPE STRING,
GPARTT TYPE STRING,
VKONTT TYPE STRING,
STDBK TYPE STRING,
STDBKT TYPE STRING,
BEGRU TYPE STRING,
WAERST TYPE STRING,
ABWRET TYPE STRING,
PPPTBT TYPE STRING,
XNOPAY TYPE STRING,
XNOPAYT TYPE STRING,
XBNKID TYPE STRING,
XBNKIDT TYPE STRING,
BNKIDT TYPE STRING,
XCRDID TYPE STRING,
XCRDIDT TYPE STRING,
CRDIDT TYPE STRING,
XPCARD TYPE STRING,
XPCARDT TYPE STRING,
CCINST TYPE STRING,
XPAYCA TYPE STRING,
XPAYCAT TYPE STRING,
MNDIDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKPREPACCD_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_FKKPREPACCD_STR-PPACC sy-vline 
WA_FKKPREPACCD_STR-GPARTT sy-vline 
WA_FKKPREPACCD_STR-VKONTT sy-vline 
WA_FKKPREPACCD_STR-STDBK sy-vline 
WA_FKKPREPACCD_STR-STDBKT sy-vline 
WA_FKKPREPACCD_STR-BEGRU sy-vline 
WA_FKKPREPACCD_STR-WAERST sy-vline 
WA_FKKPREPACCD_STR-ABWRET sy-vline 
WA_FKKPREPACCD_STR-PPPTBT sy-vline 
WA_FKKPREPACCD_STR-XNOPAY sy-vline 
WA_FKKPREPACCD_STR-XNOPAYT sy-vline 
WA_FKKPREPACCD_STR-XBNKID sy-vline 
WA_FKKPREPACCD_STR-XBNKIDT sy-vline 
WA_FKKPREPACCD_STR-BNKIDT sy-vline 
WA_FKKPREPACCD_STR-XCRDID sy-vline 
WA_FKKPREPACCD_STR-XCRDIDT sy-vline 
WA_FKKPREPACCD_STR-CRDIDT sy-vline 
WA_FKKPREPACCD_STR-XPCARD sy-vline 
WA_FKKPREPACCD_STR-XPCARDT sy-vline 
WA_FKKPREPACCD_STR-CCINST sy-vline 
WA_FKKPREPACCD_STR-XPAYCA sy-vline 
WA_FKKPREPACCD_STR-XPAYCAT sy-vline 
WA_FKKPREPACCD_STR-MNDIDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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