ABAP Select data from SAP table VIGWSRAHI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIGWSRAHI
*  INTO TABLE @DATA(IT_VIGWSRAHI2).
*--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_VIGWSRAHI INDEX 1 INTO DATA(WA_VIGWSRAHI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIGWSRAHI>-DGUELAB = 1.
<VIGWSRAHI>-DGUELBIS = 1.
<VIGWSRAHI>-SRAUMEXT = 1.
<VIGWSRAHI>-XRBEZ = 1.
<VIGWSRAHI>-SRAART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIGWSRAHI-XRAARTK, sy-vline,
  WA_VIGWSRAHI-FLOT, sy-vline,
  WA_VIGWSRAHI-FLOTTXT, sy-vline,
  WA_VIGWSRAHI-XDOORBEZ, sy-vline,
  WA_VIGWSRAHI-DRENOV, sy-vline,
  WA_VIGWSRAHI-SGENR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIGWSRAHI 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_VIGWSRAHI 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_VIGWSRAHI INTO WA_VIGWSRAHI.


*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 SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_VIGWSRAHI-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIGWSRAHI-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_VIGWSRAHI_STR, 
DGUELAB TYPE STRING,
DGUELBIS TYPE STRING,
SRAUMEXT TYPE STRING,
XRBEZ TYPE STRING,
SRAART TYPE STRING,
XRAARTK TYPE STRING,
FLOT TYPE STRING,
FLOTTXT TYPE STRING,
XDOORBEZ TYPE STRING,
DRENOV TYPE STRING,
SGENR TYPE STRING,
XGETXT TYPE STRING,
SGEBT TYPE STRING,
XGEBM TYPE STRING,
SSTOCKW TYPE STRING,
XSTOCKL TYPE STRING,
BERGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIGWSRAHI_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_VIGWSRAHI_STR-DGUELAB sy-vline 
WA_VIGWSRAHI_STR-DGUELBIS sy-vline 
WA_VIGWSRAHI_STR-SRAUMEXT sy-vline 
WA_VIGWSRAHI_STR-XRBEZ sy-vline 
WA_VIGWSRAHI_STR-SRAART sy-vline 
WA_VIGWSRAHI_STR-XRAARTK sy-vline 
WA_VIGWSRAHI_STR-FLOT sy-vline 
WA_VIGWSRAHI_STR-FLOTTXT sy-vline 
WA_VIGWSRAHI_STR-XDOORBEZ sy-vline 
WA_VIGWSRAHI_STR-DRENOV sy-vline 
WA_VIGWSRAHI_STR-SGENR sy-vline 
WA_VIGWSRAHI_STR-XGETXT sy-vline 
WA_VIGWSRAHI_STR-SGEBT sy-vline 
WA_VIGWSRAHI_STR-XGEBM sy-vline 
WA_VIGWSRAHI_STR-SSTOCKW sy-vline 
WA_VIGWSRAHI_STR-XSTOCKL sy-vline 
WA_VIGWSRAHI_STR-BERGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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