ABAP Select data from SAP table VVKKCFREC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVKKCFREC
*  INTO TABLE @DATA(IT_VVKKCFREC2).
*--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_VVKKCFREC INDEX 1 INTO DATA(WA_VVKKCFREC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVKKCFREC>-MANDT = 1.
<VVKKCFREC>-OPBEL = 1.
<VVKKCFREC>-OPUPW = 1.
<VVKKCFREC>-OPUPK = 1.
<VVKKCFREC>-OPUPZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVKKCFREC-CREATETIME, sy-vline,
  WA_VVKKCFREC-BUKRS, sy-vline,
  WA_VVKKCFREC-AUGST, sy-vline,
  WA_VVKKCFREC-GPART, sy-vline,
  WA_VVKKCFREC-VTREF, sy-vline,
  WA_VVKKCFREC-REFCLAIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVKKCFREC 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_VVKKCFREC 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_VVKKCFREC INTO WA_VVKKCFREC.


*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_VVKKCFREC-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKKCFREC-OPBEL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUG_VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKKCFREC-AUG_VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKKCFREC-AUG_VTREF.
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_VVKKCFREC_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
CREATETIME TYPE STRING,
BUKRS TYPE STRING,
AUGST TYPE STRING,
GPART TYPE STRING,
VTREF TYPE STRING,
REFCLAIM TYPE STRING,
VKONT TYPE STRING,
APPLK TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
SPART TYPE STRING,
XANZA TYPE STRING,
OPTXT TYPE STRING,
WAERS TYPE STRING,
FAEDN TYPE STRING,
KURSF TYPE STRING,
BETRW TYPE STRING,
AUGDT TYPE STRING,
AUGBL TYPE STRING,
AUGRD TYPE STRING,
AUGWA TYPE STRING,
AUGBT TYPE STRING,
XTAUS TYPE STRING,
BLART TYPE STRING,
AUGBW TYPE STRING,
AUGBH TYPE STRING,
AUGBO TYPE STRING,
ORIWA TYPE STRING,
AUG_VTREF TYPE STRING,
AUG_REFCLAIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVKKCFREC_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_VVKKCFREC_STR-MANDT sy-vline 
WA_VVKKCFREC_STR-OPBEL sy-vline 
WA_VVKKCFREC_STR-OPUPW sy-vline 
WA_VVKKCFREC_STR-OPUPK sy-vline 
WA_VVKKCFREC_STR-OPUPZ sy-vline 
WA_VVKKCFREC_STR-CREATETIME sy-vline 
WA_VVKKCFREC_STR-BUKRS sy-vline 
WA_VVKKCFREC_STR-AUGST sy-vline 
WA_VVKKCFREC_STR-GPART sy-vline 
WA_VVKKCFREC_STR-VTREF sy-vline 
WA_VVKKCFREC_STR-REFCLAIM sy-vline 
WA_VVKKCFREC_STR-VKONT sy-vline 
WA_VVKKCFREC_STR-APPLK sy-vline 
WA_VVKKCFREC_STR-HVORG sy-vline 
WA_VVKKCFREC_STR-TVORG sy-vline 
WA_VVKKCFREC_STR-SPART sy-vline 
WA_VVKKCFREC_STR-XANZA sy-vline 
WA_VVKKCFREC_STR-OPTXT sy-vline 
WA_VVKKCFREC_STR-WAERS sy-vline 
WA_VVKKCFREC_STR-FAEDN sy-vline 
WA_VVKKCFREC_STR-KURSF sy-vline 
WA_VVKKCFREC_STR-BETRW sy-vline 
WA_VVKKCFREC_STR-AUGDT sy-vline 
WA_VVKKCFREC_STR-AUGBL sy-vline 
WA_VVKKCFREC_STR-AUGRD sy-vline 
WA_VVKKCFREC_STR-AUGWA sy-vline 
WA_VVKKCFREC_STR-AUGBT sy-vline 
WA_VVKKCFREC_STR-XTAUS sy-vline 
WA_VVKKCFREC_STR-BLART sy-vline 
WA_VVKKCFREC_STR-AUGBW sy-vline 
WA_VVKKCFREC_STR-AUGBH sy-vline 
WA_VVKKCFREC_STR-AUGBO sy-vline 
WA_VVKKCFREC_STR-ORIWA sy-vline 
WA_VVKKCFREC_STR-AUG_VTREF sy-vline 
WA_VVKKCFREC_STR-AUG_REFCLAIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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