ABAP Select data from SAP table FKKCFKWL_END into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKCFKWL_END
*  INTO TABLE @DATA(IT_FKKCFKWL_END2).
*--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_FKKCFKWL_END INDEX 1 INTO DATA(WA_FKKCFKWL_END2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKCFKWL_END>-MANDT = 1.
<FKKCFKWL_END>-IGUID = 1.
<FKKCFKWL_END>-HIGUID = 1.
<FKKCFKWL_END>-WLHID = 1.
<FKKCFKWL_END>-GPART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKCFKWL_END-VKONT, sy-vline,
  WA_FKKCFKWL_END-VTREF, sy-vline,
  WA_FKKCFKWL_END-SUBAP, sy-vline,
  WA_FKKCFKWL_END-OPBEL, sy-vline,
  WA_FKKCFKWL_END-OPUPW, sy-vline,
  WA_FKKCFKWL_END-OPUPK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKCFKWL_END 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_FKKCFKWL_END 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_FKKCFKWL_END INTO WA_FKKCFKWL_END.


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

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

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

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

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKCFKWL_END-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKCFKWL_END-OPBEL.
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_FKKCFKWL_END_STR, 
MANDT TYPE STRING,
IGUID TYPE STRING,
HIGUID TYPE STRING,
WLHID TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
PRIOY TYPE STRING,
DUEDT TYPE STRING,
ACTON TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
XREF3 TYPE STRING,
STATE TYPE STRING,
LOCK_USER TYPE STRING,
LOCK_LIMIT TYPE STRING,
WORKSTATE TYPE STRING,
RESUBMIT_DATE TYPE STRING,
WF_COUNT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
TILE_ID TYPE STRING,
ENDFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKCFKWL_END_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_FKKCFKWL_END_STR-MANDT sy-vline 
WA_FKKCFKWL_END_STR-IGUID sy-vline 
WA_FKKCFKWL_END_STR-HIGUID sy-vline 
WA_FKKCFKWL_END_STR-WLHID sy-vline 
WA_FKKCFKWL_END_STR-GPART sy-vline 
WA_FKKCFKWL_END_STR-VKONT sy-vline 
WA_FKKCFKWL_END_STR-VTREF sy-vline 
WA_FKKCFKWL_END_STR-SUBAP sy-vline 
WA_FKKCFKWL_END_STR-OPBEL sy-vline 
WA_FKKCFKWL_END_STR-OPUPW sy-vline 
WA_FKKCFKWL_END_STR-OPUPK sy-vline 
WA_FKKCFKWL_END_STR-OPUPZ sy-vline 
WA_FKKCFKWL_END_STR-WAERS sy-vline 
WA_FKKCFKWL_END_STR-BETRW sy-vline 
WA_FKKCFKWL_END_STR-PRIOY sy-vline 
WA_FKKCFKWL_END_STR-DUEDT sy-vline 
WA_FKKCFKWL_END_STR-ACTON sy-vline 
WA_FKKCFKWL_END_STR-XREF1 sy-vline 
WA_FKKCFKWL_END_STR-XREF2 sy-vline 
WA_FKKCFKWL_END_STR-XREF3 sy-vline 
WA_FKKCFKWL_END_STR-STATE sy-vline 
WA_FKKCFKWL_END_STR-LOCK_USER sy-vline 
WA_FKKCFKWL_END_STR-LOCK_LIMIT sy-vline 
WA_FKKCFKWL_END_STR-WORKSTATE sy-vline 
WA_FKKCFKWL_END_STR-RESUBMIT_DATE sy-vline 
WA_FKKCFKWL_END_STR-WF_COUNT sy-vline 
WA_FKKCFKWL_END_STR-ERNAM sy-vline 
WA_FKKCFKWL_END_STR-ERDAT sy-vline 
WA_FKKCFKWL_END_STR-ERTIM sy-vline 
WA_FKKCFKWL_END_STR-TILE_ID sy-vline 
WA_FKKCFKWL_END_STR-ENDFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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