ABAP Select data from SAP table FKK_VT_CYC_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_VT_CYC_DATA 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_VT_CYC_DATA. 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_VT_CYC_DATA 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_VT_CYC_DATA TYPE STANDARD TABLE OF FKK_VT_CYC_DATA,
      WA_FKK_VT_CYC_DATA TYPE FKK_VT_CYC_DATA,
      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_VT_CYC_DATA> TYPE FKK_VT_CYC_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_VT_CYC_DATA
*  INTO TABLE @DATA(IT_FKK_VT_CYC_DATA2).
*--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_VT_CYC_DATA INDEX 1 INTO DATA(WA_FKK_VT_CYC_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_VT_CYC_DATA>-RATREQ_CAT = 1.
<FKK_VT_CYC_DATA>-CYCREQ_LAST = 1.
<FKK_VT_CYC_DATA>-CYCREQ_NEXT = 1.
<FKK_VT_CYC_DATA>-VKONT = 1.
<FKK_VT_CYC_DATA>-ACCOMPLISHED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_VT_CYC_DATA-VKORG, sy-vline,
  WA_FKK_VT_CYC_DATA-VTWEG, sy-vline,
  WA_FKK_VT_CYC_DATA-SPART, sy-vline,
  WA_FKK_VT_CYC_DATA-BUKRS, sy-vline,
  WA_FKK_VT_CYC_DATA-GSBER, sy-vline,
  WA_FKK_VT_CYC_DATA-MAKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_VT_CYC_DATA 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_VT_CYC_DATA 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_VT_CYC_DATA INTO WA_FKK_VT_CYC_DATA.


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

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

*Conversion exit ALPHA, internal->external for field VTKRF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_VT_CYC_DATA-VTKRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_VT_CYC_DATA-VTKRF.
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_VT_CYC_DATA_STR, 
RATREQ_CAT TYPE STRING,
CYCREQ_LAST TYPE STRING,
CYCREQ_NEXT TYPE STRING,
VKONT TYPE STRING,
ACCOMPLISHED TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
MAKEY TYPE STRING,
VTKRF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_VT_CYC_DATA_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_VT_CYC_DATA_STR-RATREQ_CAT sy-vline 
WA_FKK_VT_CYC_DATA_STR-CYCREQ_LAST sy-vline 
WA_FKK_VT_CYC_DATA_STR-CYCREQ_NEXT sy-vline 
WA_FKK_VT_CYC_DATA_STR-VKONT sy-vline 
WA_FKK_VT_CYC_DATA_STR-ACCOMPLISHED sy-vline 
WA_FKK_VT_CYC_DATA_STR-VKORG sy-vline 
WA_FKK_VT_CYC_DATA_STR-VTWEG sy-vline 
WA_FKK_VT_CYC_DATA_STR-SPART sy-vline 
WA_FKK_VT_CYC_DATA_STR-BUKRS sy-vline 
WA_FKK_VT_CYC_DATA_STR-GSBER sy-vline 
WA_FKK_VT_CYC_DATA_STR-MAKEY sy-vline 
WA_FKK_VT_CYC_DATA_STR-VTKRF sy-vline      INTO ld_text SEPARATED BY SPACE.

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