ABAP Select data from SAP table FKKSKT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKSKT
*  INTO TABLE @DATA(IT_FKKSKT2).
*--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_FKKSKT INDEX 1 INTO DATA(WA_FKKSKT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKSKT>-XZZUS = 1.
<FKKSKT>-HKONT = 1.
<FKKSKT>-BUKRS = 1.
<FKKSKT>-BUPLA = 1.
<FKKSKT>-VBUND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKSKT-GSBER, sy-vline,
  WA_FKKSKT-SEGMENT, sy-vline,
  WA_FKKSKT-KOSTL, sy-vline,
  WA_FKKSKT-AUFNR, sy-vline,
  WA_FKKSKT-PRCTR, sy-vline,
  WA_FKKSKT-PS_PSP_PNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKSKT 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_FKKSKT 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_FKKSKT INTO WA_FKKSKT.


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

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

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

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

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

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

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FKKSKT-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSKT-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKKSKT-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSKT-BUDGETYEAR.
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_FKKSKT_STR, 
XZZUS TYPE STRING,
HKONT TYPE STRING,
BUKRS TYPE STRING,
BUPLA TYPE STRING,
VBUND TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PRCTR TYPE STRING,
PS_PSP_PNR TYPE STRING,
MWSKZ TYPE STRING,
TXJCD TYPE STRING,
TXDAT TYPE STRING,
TAX_COUNTRY TYPE STRING,
ORIGFIKRS TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGETYEAR TYPE STRING,
BUDGET_PD TYPE STRING,
BETRW TYPE STRING,
BETRH TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
DIFFH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKSKT_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_FKKSKT_STR-XZZUS sy-vline 
WA_FKKSKT_STR-HKONT sy-vline 
WA_FKKSKT_STR-BUKRS sy-vline 
WA_FKKSKT_STR-BUPLA sy-vline 
WA_FKKSKT_STR-VBUND sy-vline 
WA_FKKSKT_STR-GSBER sy-vline 
WA_FKKSKT_STR-SEGMENT sy-vline 
WA_FKKSKT_STR-KOSTL sy-vline 
WA_FKKSKT_STR-AUFNR sy-vline 
WA_FKKSKT_STR-PRCTR sy-vline 
WA_FKKSKT_STR-PS_PSP_PNR sy-vline 
WA_FKKSKT_STR-MWSKZ sy-vline 
WA_FKKSKT_STR-TXJCD sy-vline 
WA_FKKSKT_STR-TXDAT sy-vline 
WA_FKKSKT_STR-TAX_COUNTRY sy-vline 
WA_FKKSKT_STR-ORIGFIKRS sy-vline 
WA_FKKSKT_STR-FIPEX sy-vline 
WA_FKKSKT_STR-FISTL sy-vline 
WA_FKKSKT_STR-FONDS sy-vline 
WA_FKKSKT_STR-FKBER sy-vline 
WA_FKKSKT_STR-MEASURE sy-vline 
WA_FKKSKT_STR-GRANT_NBR sy-vline 
WA_FKKSKT_STR-BUDGETYEAR sy-vline 
WA_FKKSKT_STR-BUDGET_PD sy-vline 
WA_FKKSKT_STR-BETRW sy-vline 
WA_FKKSKT_STR-BETRH sy-vline 
WA_FKKSKT_STR-BETR2 sy-vline 
WA_FKKSKT_STR-BETR3 sy-vline 
WA_FKKSKT_STR-DIFFH sy-vline      INTO ld_text SEPARATED BY SPACE.

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