ABAP Select data from SAP table VVKKMHIST into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVKKMHIST
*  INTO TABLE @DATA(IT_VVKKMHIST2).
*--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_VVKKMHIST INDEX 1 INTO DATA(WA_VVKKMHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVKKMHIST>-MANDT = 1.
<VVKKMHIST>-VTREF = 1.
<VVKKMHIST>-MVLNR = 1.
<VVKKMHIST>-BEARS = 1.
<VVKKMHIST>-SLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVKKMHIST-GPART, sy-vline,
  WA_VVKKMHIST-VKONT, sy-vline,
  WA_VVKKMHIST-MAHNV, sy-vline,
  WA_VVKKMHIST-MVTYP, sy-vline,
  WA_VVKKMHIST-MVART, sy-vline,
  WA_VVKKMHIST-MAHNS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVKKMHIST 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_VVKKMHIST 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_VVKKMHIST INTO WA_VVKKMHIST.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ROPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVKKMHIST-ROPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVKKMHIST-ROPBEL.
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_VVKKMHIST_STR, 
MANDT TYPE STRING,
VTREF TYPE STRING,
MVLNR TYPE STRING,
BEARS TYPE STRING,
SLNR TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
MAHNV TYPE STRING,
MVTYP TYPE STRING,
MVART TYPE STRING,
MAHNS TYPE STRING,
MSTYP TYPE STRING,
MSNEU TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
MVSTA TYPE STRING,
MSDAT TYPE STRING,
MNDAT TYPE STRING,
MVVON TYPE STRING,
MVBIS TYPE STRING,
PRGRP TYPE STRING,
VSARK TYPE STRING,
WAERS TYPE STRING,
MSALM TYPE STRING,
MSALH TYPE STRING,
ASALM TYPE STRING,
ASALH TYPE STRING,
RGEBM TYPE STRING,
RGEBH TYPE STRING,
GGEBM TYPE STRING,
GGEBH TYPE STRING,
AUSBL TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
OPUPW TYPE STRING,
FAEDN TYPE STRING,
FAEVON TYPE STRING,
FAEBIS TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
MAZAE TYPE STRING,
ROPBEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVKKMHIST_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_VVKKMHIST_STR-MANDT sy-vline 
WA_VVKKMHIST_STR-VTREF sy-vline 
WA_VVKKMHIST_STR-MVLNR sy-vline 
WA_VVKKMHIST_STR-BEARS sy-vline 
WA_VVKKMHIST_STR-SLNR sy-vline 
WA_VVKKMHIST_STR-GPART sy-vline 
WA_VVKKMHIST_STR-VKONT sy-vline 
WA_VVKKMHIST_STR-MAHNV sy-vline 
WA_VVKKMHIST_STR-MVTYP sy-vline 
WA_VVKKMHIST_STR-MVART sy-vline 
WA_VVKKMHIST_STR-MAHNS sy-vline 
WA_VVKKMHIST_STR-MSTYP sy-vline 
WA_VVKKMHIST_STR-MSNEU sy-vline 
WA_VVKKMHIST_STR-AEDAT sy-vline 
WA_VVKKMHIST_STR-AENAM sy-vline 
WA_VVKKMHIST_STR-MVSTA sy-vline 
WA_VVKKMHIST_STR-MSDAT sy-vline 
WA_VVKKMHIST_STR-MNDAT sy-vline 
WA_VVKKMHIST_STR-MVVON sy-vline 
WA_VVKKMHIST_STR-MVBIS sy-vline 
WA_VVKKMHIST_STR-PRGRP sy-vline 
WA_VVKKMHIST_STR-VSARK sy-vline 
WA_VVKKMHIST_STR-WAERS sy-vline 
WA_VVKKMHIST_STR-MSALM sy-vline 
WA_VVKKMHIST_STR-MSALH sy-vline 
WA_VVKKMHIST_STR-ASALM sy-vline 
WA_VVKKMHIST_STR-ASALH sy-vline 
WA_VVKKMHIST_STR-RGEBM sy-vline 
WA_VVKKMHIST_STR-RGEBH sy-vline 
WA_VVKKMHIST_STR-GGEBM sy-vline 
WA_VVKKMHIST_STR-GGEBH sy-vline 
WA_VVKKMHIST_STR-AUSBL sy-vline 
WA_VVKKMHIST_STR-OPUPK sy-vline 
WA_VVKKMHIST_STR-OPUPZ sy-vline 
WA_VVKKMHIST_STR-OPUPW sy-vline 
WA_VVKKMHIST_STR-FAEDN sy-vline 
WA_VVKKMHIST_STR-FAEVON sy-vline 
WA_VVKKMHIST_STR-FAEBIS sy-vline 
WA_VVKKMHIST_STR-LAUFD sy-vline 
WA_VVKKMHIST_STR-LAUFI sy-vline 
WA_VVKKMHIST_STR-MAZAE sy-vline 
WA_VVKKMHIST_STR-ROPBEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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