ABAP Select data from SAP table FKK_DEFREV_VBUND into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_DEFREV_VBUND 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_DEFREV_VBUND. 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_DEFREV_VBUND 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_DEFREV_VBUND TYPE STANDARD TABLE OF FKK_DEFREV_VBUND,
      WA_FKK_DEFREV_VBUND TYPE FKK_DEFREV_VBUND,
      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_DEFREV_VBUND> TYPE FKK_DEFREV_VBUND.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_DEFREV_VBUND
*  INTO TABLE @DATA(IT_FKK_DEFREV_VBUND2).
*--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_DEFREV_VBUND INDEX 1 INTO DATA(WA_FKK_DEFREV_VBUND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_DEFREV_VBUND>-OPBEL = 1.
<FKK_DEFREV_VBUND>-OPUPK = 1.
<FKK_DEFREV_VBUND>-HKONT = 1.
<FKK_DEFREV_VBUND>-BETRH = 1.
<FKK_DEFREV_VBUND>-BETRW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_DEFREV_VBUND-BETR2, sy-vline,
  WA_FKK_DEFREV_VBUND-BETR3, sy-vline,
  WA_FKK_DEFREV_VBUND-OLDVBUND, sy-vline,
  WA_FKK_DEFREV_VBUND-VBUND, sy-vline,
  WA_FKK_DEFREV_VBUND-MENGE, sy-vline,
  WA_FKK_DEFREV_VBUND-NEWHKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_DEFREV_VBUND 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_DEFREV_VBUND 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_DEFREV_VBUND INTO WA_FKK_DEFREV_VBUND.


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

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

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

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

*Conversion exit ALPHA, internal->external for field NEWHKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_DEFREV_VBUND-NEWHKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_DEFREV_VBUND-NEWHKONT.
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_DEFREV_VBUND_STR, 
OPBEL TYPE STRING,
OPUPK TYPE STRING,
HKONT TYPE STRING,
BETRH TYPE STRING,
BETRW TYPE STRING,
BETR2 TYPE STRING,
BETR3 TYPE STRING,
OLDVBUND TYPE STRING,
VBUND TYPE STRING,
MENGE TYPE STRING,
NEWHKONT TYPE STRING,
TRSF_BETRW TYPE STRING,
X_DEFREV TYPE STRING,
X_FAIL TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_DEFREV_VBUND_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_DEFREV_VBUND_STR-OPBEL sy-vline 
WA_FKK_DEFREV_VBUND_STR-OPUPK sy-vline 
WA_FKK_DEFREV_VBUND_STR-HKONT sy-vline 
WA_FKK_DEFREV_VBUND_STR-BETRH sy-vline 
WA_FKK_DEFREV_VBUND_STR-BETRW sy-vline 
WA_FKK_DEFREV_VBUND_STR-BETR2 sy-vline 
WA_FKK_DEFREV_VBUND_STR-BETR3 sy-vline 
WA_FKK_DEFREV_VBUND_STR-OLDVBUND sy-vline 
WA_FKK_DEFREV_VBUND_STR-VBUND sy-vline 
WA_FKK_DEFREV_VBUND_STR-MENGE sy-vline 
WA_FKK_DEFREV_VBUND_STR-NEWHKONT sy-vline 
WA_FKK_DEFREV_VBUND_STR-TRSF_BETRW sy-vline 
WA_FKK_DEFREV_VBUND_STR-X_DEFREV sy-vline 
WA_FKK_DEFREV_VBUND_STR-X_FAIL sy-vline 
WA_FKK_DEFREV_VBUND_STR-MSGID sy-vline 
WA_FKK_DEFREV_VBUND_STR-MSGNO sy-vline 
WA_FKK_DEFREV_VBUND_STR-MSGV1 sy-vline 
WA_FKK_DEFREV_VBUND_STR-MSGV2 sy-vline 
WA_FKK_DEFREV_VBUND_STR-MSGV3 sy-vline 
WA_FKK_DEFREV_VBUND_STR-MSGV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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