ABAP Select data from SAP table VFSID into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFSID
*  INTO TABLE @DATA(IT_VFSID2).
*--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_VFSID INDEX 1 INTO DATA(WA_VFSID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFSID>-VEGR1 = 1.
<VFSID>-VEGR2 = 1.
<VFSID>-VEGR3 = 1.
<VFSID>-VEGR4 = 1.
<VFSID>-VEGR5 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFSID-VHILM, sy-vline,
  WA_VFSID-VELTP, sy-vline,
  WA_VFSID-LANDT, sy-vline,
  WA_VFSID-ANZVSE, sy-vline,
  WA_VFSID-BRGEW, sy-vline,
  WA_VFSID-NTGEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFSID 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_VFSID 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_VFSID INTO WA_VFSID.


*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 MATN1, internal->external for field VHILM
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VFSID-VHILM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFSID-VHILM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VFSID-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFSID-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VFSID-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFSID-VOLEH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field LADEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VFSID-LADEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFSID-LADEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXIDV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFSID-EXIDV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFSID-EXIDV.
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_VFSID_STR, 
VEGR1 TYPE STRING,
VEGR2 TYPE STRING,
VEGR3 TYPE STRING,
VEGR4 TYPE STRING,
VEGR5 TYPE STRING,
VHILM TYPE STRING,
VELTP TYPE STRING,
LANDT TYPE STRING,
ANZVSE TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
VENUM TYPE STRING,
LADLG TYPE STRING,
LADEH TYPE STRING,
EXIDV TYPE STRING,
VIM_MARKED TYPE STRING,
UPDKZ TYPE STRING,
INCON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFSID_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_VFSID_STR-VEGR1 sy-vline 
WA_VFSID_STR-VEGR2 sy-vline 
WA_VFSID_STR-VEGR3 sy-vline 
WA_VFSID_STR-VEGR4 sy-vline 
WA_VFSID_STR-VEGR5 sy-vline 
WA_VFSID_STR-VHILM sy-vline 
WA_VFSID_STR-VELTP sy-vline 
WA_VFSID_STR-LANDT sy-vline 
WA_VFSID_STR-ANZVSE sy-vline 
WA_VFSID_STR-BRGEW sy-vline 
WA_VFSID_STR-NTGEW sy-vline 
WA_VFSID_STR-GEWEI sy-vline 
WA_VFSID_STR-VOLUM sy-vline 
WA_VFSID_STR-VOLEH sy-vline 
WA_VFSID_STR-VENUM sy-vline 
WA_VFSID_STR-LADLG sy-vline 
WA_VFSID_STR-LADEH sy-vline 
WA_VFSID_STR-EXIDV sy-vline 
WA_VFSID_STR-VIM_MARKED sy-vline 
WA_VFSID_STR-UPDKZ sy-vline 
WA_VFSID_STR-INCON sy-vline      INTO ld_text SEPARATED BY SPACE.

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