ABAP Select data from SAP table VTVGATT_TR_F into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVGATT_TR_F
*  INTO TABLE @DATA(IT_VTVGATT_TR_F2).
*--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_VTVGATT_TR_F INDEX 1 INTO DATA(WA_VTVGATT_TR_F2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVGATT_TR_F>-SANLF = 1.
<VTVGATT_TR_F>-SWERTTYP = 1.
<VTVGATT_TR_F>-SWPKLASS = 1.
<VTVGATT_TR_F>-ALWPKL = 1.
<VTVGATT_TR_F>-SARTBET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVGATT_TR_F-SAKAR, sy-vline,
  WA_VTVGATT_TR_F-DBLFZ, sy-vline,
  WA_VTVGATT_TR_F-DELFZ, sy-vline,
  WA_VTVGATT_TR_F-SNOTI, sy-vline,
  WA_VTVGATT_TR_F-SBOERNOT, sy-vline,
  WA_VTVGATT_TR_F-SFOTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVGATT_TR_F 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_VTVGATT_TR_F 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_VTVGATT_TR_F INTO WA_VTVGATT_TR_F.


*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_VTVGATT_TR_F_STR, 
SANLF TYPE STRING,
SWERTTYP TYPE STRING,
SWPKLASS TYPE STRING,
ALWPKL TYPE STRING,
SARTBET TYPE STRING,
SAKAR TYPE STRING,
DBLFZ TYPE STRING,
DELFZ TYPE STRING,
SNOTI TYPE STRING,
SBOERNOT TYPE STRING,
SFOTY TYPE STRING,
SOL_INS_RANL TYPE STRING,
RATING_RANL TYPE STRING,
KBNEWE_E TYPE STRING,
KZAHLAKT_E TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVGATT_TR_F_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_VTVGATT_TR_F_STR-SANLF sy-vline 
WA_VTVGATT_TR_F_STR-SWERTTYP sy-vline 
WA_VTVGATT_TR_F_STR-SWPKLASS sy-vline 
WA_VTVGATT_TR_F_STR-ALWPKL sy-vline 
WA_VTVGATT_TR_F_STR-SARTBET sy-vline 
WA_VTVGATT_TR_F_STR-SAKAR sy-vline 
WA_VTVGATT_TR_F_STR-DBLFZ sy-vline 
WA_VTVGATT_TR_F_STR-DELFZ sy-vline 
WA_VTVGATT_TR_F_STR-SNOTI sy-vline 
WA_VTVGATT_TR_F_STR-SBOERNOT sy-vline 
WA_VTVGATT_TR_F_STR-SFOTY sy-vline 
WA_VTVGATT_TR_F_STR-SOL_INS_RANL sy-vline 
WA_VTVGATT_TR_F_STR-RATING_RANL sy-vline 
WA_VTVGATT_TR_F_STR-KBNEWE_E sy-vline 
WA_VTVGATT_TR_F_STR-KZAHLAKT_E sy-vline      INTO ld_text SEPARATED BY SPACE.

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