ABAP Select data from SAP table TOBJVT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TOBJVT
*  INTO TABLE @DATA(IT_TOBJVT2).
*--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_TOBJVT INDEX 1 INTO DATA(WA_TOBJVT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TOBJVT>-OBJCT = 1.
<TOBJVT>-FIEL1 = 1.
<TOBJVT>-FIEL2 = 1.
<TOBJVT>-FIEL3 = 1.
<TOBJVT>-FIEL4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TOBJVT-FIEL5, sy-vline,
  WA_TOBJVT-FIEL6, sy-vline,
  WA_TOBJVT-FIEL7, sy-vline,
  WA_TOBJVT-FIEL8, sy-vline,
  WA_TOBJVT-FIEL9, sy-vline,
  WA_TOBJVT-FIEL0, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TOBJVT 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_TOBJVT 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_TOBJVT INTO WA_TOBJVT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TOBJVT_STR, 
OBJCT TYPE STRING,
FIEL1 TYPE STRING,
FIEL2 TYPE STRING,
FIEL3 TYPE STRING,
FIEL4 TYPE STRING,
FIEL5 TYPE STRING,
FIEL6 TYPE STRING,
FIEL7 TYPE STRING,
FIEL8 TYPE STRING,
FIEL9 TYPE STRING,
FIEL0 TYPE STRING,
OCLSS TYPE STRING,
BNAME TYPE STRING,
FBLOCK TYPE STRING,
TTEXT TYPE STRING,
CTEXT TYPE STRING,
FUN_ID TYPE STRING,
SUB_FUN TYPE STRING,
OBL TYPE STRING,
OPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TOBJVT_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_TOBJVT_STR-OBJCT sy-vline 
WA_TOBJVT_STR-FIEL1 sy-vline 
WA_TOBJVT_STR-FIEL2 sy-vline 
WA_TOBJVT_STR-FIEL3 sy-vline 
WA_TOBJVT_STR-FIEL4 sy-vline 
WA_TOBJVT_STR-FIEL5 sy-vline 
WA_TOBJVT_STR-FIEL6 sy-vline 
WA_TOBJVT_STR-FIEL7 sy-vline 
WA_TOBJVT_STR-FIEL8 sy-vline 
WA_TOBJVT_STR-FIEL9 sy-vline 
WA_TOBJVT_STR-FIEL0 sy-vline 
WA_TOBJVT_STR-OCLSS sy-vline 
WA_TOBJVT_STR-BNAME sy-vline 
WA_TOBJVT_STR-FBLOCK sy-vline 
WA_TOBJVT_STR-TTEXT sy-vline 
WA_TOBJVT_STR-CTEXT sy-vline 
WA_TOBJVT_STR-FUN_ID sy-vline 
WA_TOBJVT_STR-SUB_FUN sy-vline 
WA_TOBJVT_STR-OBL sy-vline 
WA_TOBJVT_STR-OPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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