ABAP Select data from SAP table VVNVSTBE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVNVSTBE
*  INTO TABLE @DATA(IT_VVNVSTBE2).
*--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_VVNVSTBE INDEX 1 INTO DATA(WA_VVNVSTBE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVNVSTBE>-MANDT = 1.
<VVNVSTBE>-BUKRS = 1.
<VVNVSTBE>-SBERI = 1.
<VVNVSTBE>-MWSKZ = 1.
<VVNVSTBE>-BAKHK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVNVSTBE-BMWST, sy-vline,
  WA_VVNVSTBE-BABVS, sy-vline,
  WA_VVNVSTBE-BNAVS, sy-vline,
  WA_VVNVSTBE-JUSED, sy-vline,
  WA_VVNVSTBE-JSRCH, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_VVNVSTBE 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_VVNVSTBE 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_VVNVSTBE INTO WA_VVNVSTBE.


*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 SBERI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVNVSTBE-SBERI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVNVSTBE-SBERI.
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_VVNVSTBE_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SBERI TYPE STRING,
MWSKZ TYPE STRING,
BAKHK TYPE STRING,
BMWST TYPE STRING,
BABVS TYPE STRING,
BNAVS TYPE STRING,
JUSED TYPE STRING,
JSRCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVNVSTBE_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_VVNVSTBE_STR-MANDT sy-vline 
WA_VVNVSTBE_STR-BUKRS sy-vline 
WA_VVNVSTBE_STR-SBERI sy-vline 
WA_VVNVSTBE_STR-MWSKZ sy-vline 
WA_VVNVSTBE_STR-BAKHK sy-vline 
WA_VVNVSTBE_STR-BMWST sy-vline 
WA_VVNVSTBE_STR-BABVS sy-vline 
WA_VVNVSTBE_STR-BNAVS sy-vline 
WA_VVNVSTBE_STR-JUSED sy-vline 
WA_VVNVSTBE_STR-JSRCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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