ABAP Select data from SAP table VIAROBJ into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VIAROBJ 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 VIAROBJ. 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 VIAROBJ 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_VIAROBJ TYPE STANDARD TABLE OF VIAROBJ,
      WA_VIAROBJ TYPE VIAROBJ,
      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: <VIAROBJ> TYPE VIAROBJ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIAROBJ
*  INTO TABLE @DATA(IT_VIAROBJ2).
*--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_VIAROBJ INDEX 1 INTO DATA(WA_VIAROBJ2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIAROBJ-REHER, sy-vline,
  WA_VIAROBJ-OBJNR, sy-vline,
  WA_VIAROBJ-IMKEY, sy-vline,
  WA_VIAROBJ-BUKRS, sy-vline,
  WA_VIAROBJ-SWENR, sy-vline,
  WA_VIAROBJ-SGRNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIAROBJ 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_VIAROBJ 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_VIAROBJ INTO WA_VIAROBJ.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SMIVE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIAROBJ-SMIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAROBJ-SMIVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field E_SMIVE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIAROBJ-E_SMIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAROBJ-E_SMIVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SVWNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIAROBJ-SVWNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAROBJ-SVWNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNKSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIAROBJ-SNKSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAROBJ-SNKSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEMPSL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIAROBJ-SEMPSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAROBJ-SEMPSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SBERI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VIAROBJ-SBERI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIAROBJ-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_VIAROBJ_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
RERF TYPE STRING,
REHER TYPE STRING,
OBJNR TYPE STRING,
IMKEY TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
SMENR TYPE STRING,
SMIVE TYPE STRING,
E_SMIVE TYPE STRING,
SVWNR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
SBERI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIAROBJ_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_VIAROBJ_STR-MANDT sy-vline 
WA_VIAROBJ_STR-INTRENO sy-vline 
WA_VIAROBJ_STR-DERF sy-vline 
WA_VIAROBJ_STR-TERF sy-vline 
WA_VIAROBJ_STR-RERF sy-vline 
WA_VIAROBJ_STR-REHER sy-vline 
WA_VIAROBJ_STR-OBJNR sy-vline 
WA_VIAROBJ_STR-IMKEY sy-vline 
WA_VIAROBJ_STR-BUKRS sy-vline 
WA_VIAROBJ_STR-SWENR sy-vline 
WA_VIAROBJ_STR-SGRNR sy-vline 
WA_VIAROBJ_STR-SGENR sy-vline 
WA_VIAROBJ_STR-SMENR sy-vline 
WA_VIAROBJ_STR-SMIVE sy-vline 
WA_VIAROBJ_STR-E_SMIVE sy-vline 
WA_VIAROBJ_STR-SVWNR sy-vline 
WA_VIAROBJ_STR-SNKSL sy-vline 
WA_VIAROBJ_STR-SEMPSL sy-vline 
WA_VIAROBJ_STR-SBERI sy-vline      INTO ld_text SEPARATED BY SPACE.

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