ABAP Select data from SAP table FKKHKONT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKHKONT
*  INTO TABLE @DATA(IT_FKKHKONT2).
*--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_FKKHKONT INDEX 1 INTO DATA(WA_FKKHKONT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKHKONT>-BUKRS = 1.
<FKKHKONT>-SAKNR = 1.
<FKKHKONT>-XLOEV = 1.
<FKKHKONT>-XLOEB = 1.
<FKKHKONT>-XSPEB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKHKONT-XSALH, sy-vline,
  WA_FKKHKONT-XBILK, sy-vline,
  WA_FKKHKONT-XGKON, sy-vline,
  WA_FKKHKONT-MITKZ, sy-vline,
  WA_FKKHKONT-XINTB, sy-vline,
  WA_FKKHKONT-MWSKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKHKONT 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_FKKHKONT 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_FKKHKONT INTO WA_FKKHKONT.


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

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

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKHKONT-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKHKONT-VBUND.
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_FKKHKONT_STR, 
BUKRS TYPE STRING,
SAKNR TYPE STRING,
XLOEV TYPE STRING,
XLOEB TYPE STRING,
XSPEB TYPE STRING,
XSALH TYPE STRING,
XBILK TYPE STRING,
XGKON TYPE STRING,
MITKZ TYPE STRING,
XINTB TYPE STRING,
MWSKZ TYPE STRING,
WAERS TYPE STRING,
XMWNO TYPE STRING,
BEGRU TYPE STRING,
FDGRV TYPE STRING,
FDLEV TYPE STRING,
FSTAG TYPE STRING,
XOPVW TYPE STRING,
VBUND TYPE STRING,
GLACCOUNT_TYPE TYPE STRING,
GLACCOUNT_SUBTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKHKONT_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_FKKHKONT_STR-BUKRS sy-vline 
WA_FKKHKONT_STR-SAKNR sy-vline 
WA_FKKHKONT_STR-XLOEV sy-vline 
WA_FKKHKONT_STR-XLOEB sy-vline 
WA_FKKHKONT_STR-XSPEB sy-vline 
WA_FKKHKONT_STR-XSALH sy-vline 
WA_FKKHKONT_STR-XBILK sy-vline 
WA_FKKHKONT_STR-XGKON sy-vline 
WA_FKKHKONT_STR-MITKZ sy-vline 
WA_FKKHKONT_STR-XINTB sy-vline 
WA_FKKHKONT_STR-MWSKZ sy-vline 
WA_FKKHKONT_STR-WAERS sy-vline 
WA_FKKHKONT_STR-XMWNO sy-vline 
WA_FKKHKONT_STR-BEGRU sy-vline 
WA_FKKHKONT_STR-FDGRV sy-vline 
WA_FKKHKONT_STR-FDLEV sy-vline 
WA_FKKHKONT_STR-FSTAG sy-vline 
WA_FKKHKONT_STR-XOPVW sy-vline 
WA_FKKHKONT_STR-VBUND sy-vline 
WA_FKKHKONT_STR-GLACCOUNT_TYPE sy-vline 
WA_FKKHKONT_STR-GLACCOUNT_SUBTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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