ABAP Select data from SAP table VETTAF into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VETTAF
*  INTO TABLE @DATA(IT_VETTAF2).
*--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_VETTAF INDEX 1 INTO DATA(WA_VETTAF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VETTAF>-MANDT = 1.
<VETTAF>-TARIFTYP = 1.
<VETTAF>-OPERAND = 1.
<VETTAF>-SAISON = 1.
<VETTAF>-BIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VETTAF-AB, sy-vline,
  WA_VETTAF-TARIFART, sy-vline,
  WA_VETTAF-KONDIGR, sy-vline,
  WA_VETTAF-WERT1, sy-vline,
  WA_VETTAF-WERT2, sy-vline,
  WA_VETTAF-STRING1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VETTAF 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_VETTAF 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_VETTAF INTO WA_VETTAF.


*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_VETTAF_STR, 
MANDT TYPE STRING,
TARIFTYP TYPE STRING,
OPERAND TYPE STRING,
SAISON TYPE STRING,
BIS TYPE STRING,
AB TYPE STRING,
TARIFART TYPE STRING,
KONDIGR TYPE STRING,
WERT1 TYPE STRING,
WERT2 TYPE STRING,
STRING1 TYPE STRING,
STRING2 TYPE STRING,
STRING3 TYPE STRING,
STRING4 TYPE STRING,
ERSATZWERT TYPE STRING,
BETRAG TYPE STRING,
WAERS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VETTAF_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_VETTAF_STR-MANDT sy-vline 
WA_VETTAF_STR-TARIFTYP sy-vline 
WA_VETTAF_STR-OPERAND sy-vline 
WA_VETTAF_STR-SAISON sy-vline 
WA_VETTAF_STR-BIS sy-vline 
WA_VETTAF_STR-AB sy-vline 
WA_VETTAF_STR-TARIFART sy-vline 
WA_VETTAF_STR-KONDIGR sy-vline 
WA_VETTAF_STR-WERT1 sy-vline 
WA_VETTAF_STR-WERT2 sy-vline 
WA_VETTAF_STR-STRING1 sy-vline 
WA_VETTAF_STR-STRING2 sy-vline 
WA_VETTAF_STR-STRING3 sy-vline 
WA_VETTAF_STR-STRING4 sy-vline 
WA_VETTAF_STR-ERSATZWERT sy-vline 
WA_VETTAF_STR-BETRAG sy-vline 
WA_VETTAF_STR-WAERS sy-vline 
WA_VETTAF_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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