ABAP Select data from SAP table VIAR03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VIAR03 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 VIAR03. 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 VIAR03 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_VIAR03 TYPE STANDARD TABLE OF VIAR03,
      WA_VIAR03 TYPE VIAR03,
      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: <VIAR03> TYPE VIAR03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VIAR03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VIAR03
  INTO TABLE IT_VIAR03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIAR03
*  INTO TABLE @DATA(IT_VIAR032).
*--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_VIAR03 INDEX 1 INTO DATA(WA_VIAR032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VIAR03 ASSIGNING <VIAR03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIAR03>-MANDT = 1.
<VIAR03>-SPARTID = 1.
<VIAR03>-RERF = 1.
<VIAR03>-DERF = 1.
<VIAR03>-TERF = 1.

ENDLOOP.

LOOP AT IT_VIAR03 INTO WA_VIAR03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIAR03-REHER, sy-vline,
  WA_VIAR03-RBEAR, sy-vline,
  WA_VIAR03-DBEAR, sy-vline,
  WA_VIAR03-TBEAR, sy-vline,
  WA_VIAR03-RBHER, sy-vline,
  WA_VIAR03-ACCNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIAR03 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_VIAR03 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_VIAR03 INTO WA_VIAR03.


*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 CUNIT, internal->external for field AREAKEY
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VIAR03-AREAKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAR03-AREAKEY.
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_VIAR03_STR, 
MANDT TYPE STRING,
SPARTID TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
ACCNAME TYPE STRING,
ACCDATE TYPE STRING,
ACCTIME TYPE STRING,
ACCTCOD TYPE STRING,
SUSRTYPE TYPE STRING,
JHIDDEN TYPE STRING,
XPASSWORD TYPE STRING,
STITLE TYPE STRING,
XNAMELAST TYPE STRING,
XNAMEFRST TYPE STRING,
XPOSTFACH TYPE STRING,
SCOUNTRY TYPE STRING,
SREGIO TYPE STRING,
SCOUNC TYPE STRING,
SCITYC TYPE STRING,
ZIPCODE TYPE STRING,
LOCATION TYPE STRING,
SUBLOCAT TYPE STRING,
STREET TYPE STRING,
XEMAIL TYPE STRING,
XHOMEPAGE TYPE STRING,
XTELNRDAY TYPE STRING,
XTELNREVG TYPE STRING,
XFAXNR TYPE STRING,
CURRKEY TYPE STRING,
AREAKEY TYPE STRING,
JWEBSAFE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIAR03_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_VIAR03_STR-MANDT sy-vline 
WA_VIAR03_STR-SPARTID sy-vline 
WA_VIAR03_STR-RERF sy-vline 
WA_VIAR03_STR-DERF sy-vline 
WA_VIAR03_STR-TERF sy-vline 
WA_VIAR03_STR-REHER sy-vline 
WA_VIAR03_STR-RBEAR sy-vline 
WA_VIAR03_STR-DBEAR sy-vline 
WA_VIAR03_STR-TBEAR sy-vline 
WA_VIAR03_STR-RBHER sy-vline 
WA_VIAR03_STR-ACCNAME sy-vline 
WA_VIAR03_STR-ACCDATE sy-vline 
WA_VIAR03_STR-ACCTIME sy-vline 
WA_VIAR03_STR-ACCTCOD sy-vline 
WA_VIAR03_STR-SUSRTYPE sy-vline 
WA_VIAR03_STR-JHIDDEN sy-vline 
WA_VIAR03_STR-XPASSWORD sy-vline 
WA_VIAR03_STR-STITLE sy-vline 
WA_VIAR03_STR-XNAMELAST sy-vline 
WA_VIAR03_STR-XNAMEFRST sy-vline 
WA_VIAR03_STR-XPOSTFACH sy-vline 
WA_VIAR03_STR-SCOUNTRY sy-vline 
WA_VIAR03_STR-SREGIO sy-vline 
WA_VIAR03_STR-SCOUNC sy-vline 
WA_VIAR03_STR-SCITYC sy-vline 
WA_VIAR03_STR-ZIPCODE sy-vline 
WA_VIAR03_STR-LOCATION sy-vline 
WA_VIAR03_STR-SUBLOCAT sy-vline 
WA_VIAR03_STR-STREET sy-vline 
WA_VIAR03_STR-XEMAIL sy-vline 
WA_VIAR03_STR-XHOMEPAGE sy-vline 
WA_VIAR03_STR-XTELNRDAY sy-vline 
WA_VIAR03_STR-XTELNREVG sy-vline 
WA_VIAR03_STR-XFAXNR sy-vline 
WA_VIAR03_STR-CURRKEY sy-vline 
WA_VIAR03_STR-AREAKEY sy-vline 
WA_VIAR03_STR-JWEBSAFE sy-vline      INTO ld_text SEPARATED BY SPACE.

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