ABAP Select data from SAP table VTVFGCF 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 VTVFGCF 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 VTVFGCF. 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 VTVFGCF 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_VTVFGCF TYPE STANDARD TABLE OF VTVFGCF,
      WA_VTVFGCF TYPE VTVFGCF,
      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: <VTVFGCF> TYPE VTVFGCF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVFGCF
*  INTO TABLE @DATA(IT_VTVFGCF2).
*--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_VTVFGCF INDEX 1 INTO DATA(WA_VTVFGCF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVFGCF>-CFKNZ = 1.
<VTVFGCF>-RKONDGR = 1.
<VTVFGCF>-SSIGN = 1.
<VTVFGCF>-SCWHR = 1.
<VTVFGCF>-BCWHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVFGCF-DFAELL, sy-vline,
  WA_VTVFGCF-DDISPO, sy-vline,
  WA_VTVFGCF-DBERVON, sy-vline,
  WA_VTVFGCF-DBERBIS, sy-vline,
  WA_VTVFGCF-SZBMETH, sy-vline,
  WA_VTVFGCF-ABASTAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVFGCF 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_VTVFGCF 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_VTVFGCF INTO WA_VTVFGCF.


*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_VTVFGCF_STR, 
CFKNZ TYPE STRING,
RKONDGR TYPE STRING,
SSIGN TYPE STRING,
SCWHR TYPE STRING,
BCWHR TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
DBERVON TYPE STRING,
DBERBIS TYPE STRING,
SZBMETH TYPE STRING,
ABASTAGE TYPE STRING,
ATAGE TYPE STRING,
ASTUECK TYPE STRING,
SNWHR TYPE STRING,
BNWHR TYPE STRING,
PKOND TYPE STRING,
SZSREF TYPE STRING,
SZSREFVZ TYPE STRING,
SOFFSET TYPE STRING,
SFORMREF TYPE STRING,
DZFEST TYPE STRING,
JSOFVERR TYPE STRING,
OPPZINS TYPE STRING,
FIKTKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVFGCF_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_VTVFGCF_STR-CFKNZ sy-vline 
WA_VTVFGCF_STR-RKONDGR sy-vline 
WA_VTVFGCF_STR-SSIGN sy-vline 
WA_VTVFGCF_STR-SCWHR sy-vline 
WA_VTVFGCF_STR-BCWHR sy-vline 
WA_VTVFGCF_STR-DFAELL sy-vline 
WA_VTVFGCF_STR-DDISPO sy-vline 
WA_VTVFGCF_STR-DBERVON sy-vline 
WA_VTVFGCF_STR-DBERBIS sy-vline 
WA_VTVFGCF_STR-SZBMETH sy-vline 
WA_VTVFGCF_STR-ABASTAGE sy-vline 
WA_VTVFGCF_STR-ATAGE sy-vline 
WA_VTVFGCF_STR-ASTUECK sy-vline 
WA_VTVFGCF_STR-SNWHR sy-vline 
WA_VTVFGCF_STR-BNWHR sy-vline 
WA_VTVFGCF_STR-PKOND sy-vline 
WA_VTVFGCF_STR-SZSREF sy-vline 
WA_VTVFGCF_STR-SZSREFVZ sy-vline 
WA_VTVFGCF_STR-SOFFSET sy-vline 
WA_VTVFGCF_STR-SFORMREF sy-vline 
WA_VTVFGCF_STR-DZFEST sy-vline 
WA_VTVFGCF_STR-JSOFVERR sy-vline 
WA_VTVFGCF_STR-OPPZINS sy-vline 
WA_VTVFGCF_STR-FIKTKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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