ABAP Select data from SAP table SI_VVKKMHIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SI_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 SI_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 SI_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_SI_VVKKMHIST TYPE STANDARD TABLE OF SI_VVKKMHIST,
      WA_SI_VVKKMHIST TYPE SI_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: <SI_VVKKMHIST> TYPE SI_VVKKMHIST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SI_VVKKMHIST
*  INTO TABLE @DATA(IT_SI_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_SI_VVKKMHIST INDEX 1 INTO DATA(WA_SI_VVKKMHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SI_VVKKMHIST>-BEARS = 1.
<SI_VVKKMHIST>-SLNR = 1.
<SI_VVKKMHIST>-MVTYP = 1.
<SI_VVKKMHIST>-MVART = 1.
<SI_VVKKMHIST>-MSNEU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SI_VVKKMHIST-AEDAT, sy-vline,
  WA_SI_VVKKMHIST-AENAM, sy-vline,
  WA_SI_VVKKMHIST-MVSTA, sy-vline,
  WA_SI_VVKKMHIST-MSDAT, sy-vline,
  WA_SI_VVKKMHIST-MNDAT, sy-vline,
  WA_SI_VVKKMHIST-MVVON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SI_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_SI_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_SI_VVKKMHIST INTO WA_SI_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 VSARK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_VVKKMHIST-VSARK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_VVKKMHIST-VSARK.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ROPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_VVKKMHIST-ROPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_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_SI_VVKKMHIST_STR, 
BEARS TYPE STRING,
SLNR TYPE STRING,
MVTYP TYPE STRING,
MVART 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,
ASALM TYPE STRING,
ASALH TYPE STRING,
AUSBL TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
OPUPW TYPE STRING,
FAEDN TYPE STRING,
FAEVON TYPE STRING,
FAEBIS TYPE STRING,
ROPBEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SI_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_SI_VVKKMHIST_STR-BEARS sy-vline 
WA_SI_VVKKMHIST_STR-SLNR sy-vline 
WA_SI_VVKKMHIST_STR-MVTYP sy-vline 
WA_SI_VVKKMHIST_STR-MVART sy-vline 
WA_SI_VVKKMHIST_STR-MSNEU sy-vline 
WA_SI_VVKKMHIST_STR-AEDAT sy-vline 
WA_SI_VVKKMHIST_STR-AENAM sy-vline 
WA_SI_VVKKMHIST_STR-MVSTA sy-vline 
WA_SI_VVKKMHIST_STR-MSDAT sy-vline 
WA_SI_VVKKMHIST_STR-MNDAT sy-vline 
WA_SI_VVKKMHIST_STR-MVVON sy-vline 
WA_SI_VVKKMHIST_STR-MVBIS sy-vline 
WA_SI_VVKKMHIST_STR-PRGRP sy-vline 
WA_SI_VVKKMHIST_STR-VSARK sy-vline 
WA_SI_VVKKMHIST_STR-ASALM sy-vline 
WA_SI_VVKKMHIST_STR-ASALH sy-vline 
WA_SI_VVKKMHIST_STR-AUSBL sy-vline 
WA_SI_VVKKMHIST_STR-OPUPK sy-vline 
WA_SI_VVKKMHIST_STR-OPUPZ sy-vline 
WA_SI_VVKKMHIST_STR-OPUPW sy-vline 
WA_SI_VVKKMHIST_STR-FAEDN sy-vline 
WA_SI_VVKKMHIST_STR-FAEVON sy-vline 
WA_SI_VVKKMHIST_STR-FAEBIS sy-vline 
WA_SI_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.