ABAP Select data from SAP table VIGWSARGGZU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIGWSARGGZU
*  INTO TABLE @DATA(IT_VIGWSARGGZU2).
*--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_VIGWSARGGZU INDEX 1 INTO DATA(WA_VIGWSARGGZU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIGWSARGGZU>-INTRENOAR = 1.
<VIGWSARGGZU>-VERSION = 1.
<VIGWSARGGZU>-BUKRS = 1.
<VIGWSARGGZU>-SWENR = 1.
<VIGWSARGGZU>-SGRNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIGWSARGGZU-SGENR, sy-vline,
  WA_VIGWSARGGZU-SGEBT, sy-vline,
  WA_VIGWSARGGZU-SRAUMEXT, sy-vline,
  WA_VIGWSARGGZU-SSTOCKW, sy-vline,
  WA_VIGWSARGGZU-FLID, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_VIGWSARGGZU 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_VIGWSARGGZU 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_VIGWSARGGZU INTO WA_VIGWSARGGZU.


*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_VIGWSARGGZU-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIGWSARGGZU-SWENR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_VIGWSARGGZU-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIGWSARGGZU-SGENR.
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_VIGWSARGGZU_STR, 
INTRENOAR TYPE STRING,
VERSION TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
SGEBT TYPE STRING,
SRAUMEXT TYPE STRING,
SSTOCKW TYPE STRING,
FLID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIGWSARGGZU_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_VIGWSARGGZU_STR-INTRENOAR sy-vline 
WA_VIGWSARGGZU_STR-VERSION sy-vline 
WA_VIGWSARGGZU_STR-BUKRS sy-vline 
WA_VIGWSARGGZU_STR-SWENR sy-vline 
WA_VIGWSARGGZU_STR-SGRNR sy-vline 
WA_VIGWSARGGZU_STR-SGENR sy-vline 
WA_VIGWSARGGZU_STR-SGEBT sy-vline 
WA_VIGWSARGGZU_STR-SRAUMEXT sy-vline 
WA_VIGWSARGGZU_STR-SSTOCKW sy-vline 
WA_VIGWSARGGZU_STR-FLID sy-vline      INTO ld_text SEPARATED BY SPACE.

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