ABAP Select data from SAP table VIGW_VOBW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIGW_VOBW
*  INTO TABLE @DATA(IT_VIGW_VOBW2).
*--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_VIGW_VOBW INDEX 1 INTO DATA(WA_VIGW_VOBW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIGW_VOBW>-MANDT = 1.
<VIGW_VOBW>-BUKRS = 1.
<VIGW_VOBW>-SWENR = 1.
<VIGW_VOBW>-SGENR = 1.
<VIGW_VOBW>-SGRNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIGW_VOBW-FLAG, sy-vline,
  WA_VIGW_VOBW-SKOART, sy-vline,
  WA_VIGW_VOBW-SFLAAIND, sy-vline,
  WA_VIGW_VOBW-SFLAA, sy-vline,
  WA_VIGW_VOBW-SDGUELBIS, sy-vline,
  WA_VIGW_VOBW-SVERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIGW_VOBW 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_VIGW_VOBW 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_VIGW_VOBW INTO WA_VIGW_VOBW.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_VIGW_VOBW-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIGW_VOBW-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_VIGW_VOBW-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIGW_VOBW-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_VIGW_VOBW-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIGW_VOBW-SGRNR.
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_VIGW_VOBW_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGENR TYPE STRING,
SGRNR TYPE STRING,
FLAG TYPE STRING,
SKOART TYPE STRING,
SFLAAIND TYPE STRING,
SFLAA TYPE STRING,
SDGUELBIS TYPE STRING,
SVERSION TYPE STRING,
DGUELAB TYPE STRING,
MWMARKT TYPE STRING,
MWKOSTN TYPE STRING,
MWLEERS TYPE STRING,
WHRMKLBW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIGW_VOBW_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_VIGW_VOBW_STR-MANDT sy-vline 
WA_VIGW_VOBW_STR-BUKRS sy-vline 
WA_VIGW_VOBW_STR-SWENR sy-vline 
WA_VIGW_VOBW_STR-SGENR sy-vline 
WA_VIGW_VOBW_STR-SGRNR sy-vline 
WA_VIGW_VOBW_STR-FLAG sy-vline 
WA_VIGW_VOBW_STR-SKOART sy-vline 
WA_VIGW_VOBW_STR-SFLAAIND sy-vline 
WA_VIGW_VOBW_STR-SFLAA sy-vline 
WA_VIGW_VOBW_STR-SDGUELBIS sy-vline 
WA_VIGW_VOBW_STR-SVERSION sy-vline 
WA_VIGW_VOBW_STR-DGUELAB sy-vline 
WA_VIGW_VOBW_STR-MWMARKT sy-vline 
WA_VIGW_VOBW_STR-MWKOSTN sy-vline 
WA_VIGW_VOBW_STR-MWLEERS sy-vline 
WA_VIGW_VOBW_STR-WHRMKLBW sy-vline      INTO ld_text SEPARATED BY SPACE.

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