ABAP Select data from SAP table VVKK_KF_V010 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VVKK_KF_V010 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 VVKK_KF_V010. 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 VVKK_KF_V010 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_VVKK_KF_V010 TYPE STANDARD TABLE OF VVKK_KF_V010,
      WA_VVKK_KF_V010 TYPE VVKK_KF_V010,
      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: <VVKK_KF_V010> TYPE VVKK_KF_V010.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VVKK_KF_V010.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VVKK_KF_V010
  INTO TABLE IT_VVKK_KF_V010.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVKK_KF_V010
*  INTO TABLE @DATA(IT_VVKK_KF_V0102).
*--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_VVKK_KF_V010 INDEX 1 INTO DATA(WA_VVKK_KF_V0102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VVKK_KF_V010 ASSIGNING <VVKK_KF_V010>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVKK_KF_V010>-BUKRS = 1.
<VVKK_KF_V010>-GSBER = 1.
<VVKK_KF_V010>-HVORG = 1.
<VVKK_KF_V010>-TVORG = 1.
<VVKK_KF_V010>-KOFIZ = 1.

ENDLOOP.

LOOP AT IT_VVKK_KF_V010 INTO WA_VVKK_KF_V010.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVKK_KF_V010-MWSKZ, sy-vline,
  WA_VVKK_KF_V010-STAKZ, sy-vline,
  WA_VVKK_KF_V010-WAERS, sy-vline,
  WA_VVKK_KF_V010-GRKEY, sy-vline,
  WA_VVKK_KF_V010-FDGRP, sy-vline,
  WA_VVKK_KF_V010-FDLEV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVKK_KF_V010 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_VVKK_KF_V010 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_VVKK_KF_V010 INTO WA_VVKK_KF_V010.


*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 FDGRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKK_KF_V010-FDGRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKK_KF_V010-FDGRP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKK_KF_V010-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKK_KF_V010-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VSARL_VX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKK_KF_V010-VSARL_VX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKK_KF_V010-VSARL_VX.
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_VVKK_KF_V010_STR, 
BUKRS TYPE STRING,
GSBER TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
KOFIZ TYPE STRING,
MWSKZ TYPE STRING,
STAKZ TYPE STRING,
WAERS TYPE STRING,
GRKEY TYPE STRING,
FDGRP TYPE STRING,
FDLEV TYPE STRING,
TXJCD TYPE STRING,
VBUND TYPE STRING,
BLART TYPE STRING,
IKEY TYPE STRING,
PRGRP TYPE STRING,
VSARL_VX TYPE STRING,
BUGRD TYPE STRING,
VKTYP TYPE STRING,
DUMMY_FKKOP_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVKK_KF_V010_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_VVKK_KF_V010_STR-BUKRS sy-vline 
WA_VVKK_KF_V010_STR-GSBER sy-vline 
WA_VVKK_KF_V010_STR-HVORG sy-vline 
WA_VVKK_KF_V010_STR-TVORG sy-vline 
WA_VVKK_KF_V010_STR-KOFIZ sy-vline 
WA_VVKK_KF_V010_STR-MWSKZ sy-vline 
WA_VVKK_KF_V010_STR-STAKZ sy-vline 
WA_VVKK_KF_V010_STR-WAERS sy-vline 
WA_VVKK_KF_V010_STR-GRKEY sy-vline 
WA_VVKK_KF_V010_STR-FDGRP sy-vline 
WA_VVKK_KF_V010_STR-FDLEV sy-vline 
WA_VVKK_KF_V010_STR-TXJCD sy-vline 
WA_VVKK_KF_V010_STR-VBUND sy-vline 
WA_VVKK_KF_V010_STR-BLART sy-vline 
WA_VVKK_KF_V010_STR-IKEY sy-vline 
WA_VVKK_KF_V010_STR-PRGRP sy-vline 
WA_VVKK_KF_V010_STR-VSARL_VX sy-vline 
WA_VVKK_KF_V010_STR-BUGRD sy-vline 
WA_VVKK_KF_V010_STR-VKTYP sy-vline 
WA_VVKK_KF_V010_STR-DUMMY_FKKOP_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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