ABAP Select data from SAP table FKK_KONV_SHORT_OUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_KONV_SHORT_OUT
*  INTO TABLE @DATA(IT_FKK_KONV_SHORT_OUT2).
*--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_FKK_KONV_SHORT_OUT INDEX 1 INTO DATA(WA_FKK_KONV_SHORT_OUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_KONV_SHORT_OUT>-BUKRS = 1.
<FKK_KONV_SHORT_OUT>-GJAHR = 1.
<FKK_KONV_SHORT_OUT>-OPBEL = 1.
<FKK_KONV_SHORT_OUT>-VBELN = 1.
<FKK_KONV_SHORT_OUT>-KNUMV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_KONV_SHORT_OUT-KPOSN, sy-vline,
  WA_FKK_KONV_SHORT_OUT-STUNR, sy-vline,
  WA_FKK_KONV_SHORT_OUT-ZAEHK, sy-vline,
  WA_FKK_KONV_SHORT_OUT-KAPPL, sy-vline,
  WA_FKK_KONV_SHORT_OUT-KSCHL, sy-vline,
  WA_FKK_KONV_SHORT_OUT-KDATU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_KONV_SHORT_OUT 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_FKK_KONV_SHORT_OUT 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_FKK_KONV_SHORT_OUT INTO WA_FKK_KONV_SHORT_OUT.


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

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

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FKK_KONV_SHORT_OUT-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_KONV_SHORT_OUT-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_KONV_SHORT_OUT-SAKN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_KONV_SHORT_OUT-SAKN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_KONV_SHORT_OUT-SAKN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_KONV_SHORT_OUT-SAKN2.
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_FKK_KONV_SHORT_OUT_STR, 
BUKRS TYPE STRING,
GJAHR TYPE STRING,
OPBEL TYPE STRING,
VBELN TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
KDATU TYPE STRING,
KRECH TYPE STRING,
KAWRT TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
KKURS TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KNTYP TYPE STRING,
KSTAT TYPE STRING,
KNUMH TYPE STRING,
KOPOS TYPE STRING,
SAKN1 TYPE STRING,
MWSK1 TYPE STRING,
SAKN2 TYPE STRING,
MWSK2 TYPE STRING,
KWERT TYPE STRING,
KINAK TYPE STRING,
KOAID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_KONV_SHORT_OUT_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_FKK_KONV_SHORT_OUT_STR-BUKRS sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-GJAHR sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-OPBEL sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-VBELN sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KNUMV sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KPOSN sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-STUNR sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-ZAEHK sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KAPPL sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KSCHL sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KDATU sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KRECH sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KAWRT sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KBETR sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-WAERS sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KKURS sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KPEIN sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KMEIN sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KNTYP sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KSTAT sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KNUMH sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KOPOS sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-SAKN1 sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-MWSK1 sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-SAKN2 sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-MWSK2 sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KWERT sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KINAK sy-vline 
WA_FKK_KONV_SHORT_OUT_STR-KOAID sy-vline      INTO ld_text SEPARATED BY SPACE.

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