ABAP Select data from SAP table VV_TVFRFQ_F1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VV_TVFRFQ_F1 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 VV_TVFRFQ_F1. 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 VV_TVFRFQ_F1 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_VV_TVFRFQ_F1 TYPE STANDARD TABLE OF VV_TVFRFQ_F1,
      WA_VV_TVFRFQ_F1 TYPE VV_TVFRFQ_F1,
      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: <VV_TVFRFQ_F1> TYPE VV_TVFRFQ_F1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VV_TVFRFQ_F1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VV_TVFRFQ_F1
  INTO TABLE IT_VV_TVFRFQ_F1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VV_TVFRFQ_F1
*  INTO TABLE @DATA(IT_VV_TVFRFQ_F12).
*--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_VV_TVFRFQ_F1 INDEX 1 INTO DATA(WA_VV_TVFRFQ_F12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VV_TVFRFQ_F1 ASSIGNING <VV_TVFRFQ_F1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VV_TVFRFQ_F1>-KAPPL = 1.
<VV_TVFRFQ_F1>-REFQUAN = 1.
<VV_TVFRFQ_F1>-BEZEI = 1.
<VV_TVFRFQ_F1>-TABNAME = 1.
<VV_TVFRFQ_F1>-ASS_FIELD = 1.

ENDLOOP.

LOOP AT IT_VV_TVFRFQ_F1 INTO WA_VV_TVFRFQ_F1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VV_TVFRFQ_F1-REF_FIELD, sy-vline,
  WA_VV_TVFRFQ_F1-REF_TAB, sy-vline,
  WA_VV_TVFRFQ_F1-COMMSTR, sy-vline,
  WA_VV_TVFRFQ_F1-FLDNAME1, sy-vline,
  WA_VV_TVFRFQ_F1-UNITNAME1, sy-vline,
  WA_VV_TVFRFQ_F1-FLDNAME2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VV_TVFRFQ_F1 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_VV_TVFRFQ_F1 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_VV_TVFRFQ_F1 INTO WA_VV_TVFRFQ_F1.


*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_VV_TVFRFQ_F1_STR, 
KAPPL TYPE STRING,
REFQUAN TYPE STRING,
BEZEI TYPE STRING,
TABNAME TYPE STRING,
ASS_FIELD TYPE STRING,
REF_FIELD TYPE STRING,
REF_TAB TYPE STRING,
COMMSTR TYPE STRING,
FLDNAME1 TYPE STRING,
UNITNAME1 TYPE STRING,
FLDNAME2 TYPE STRING,
UNITNAME2 TYPE STRING,
FLDNAME3 TYPE STRING,
UNITNAME3 TYPE STRING,
VARLEN TYPE STRING,
BEZGR TYPE STRING,
UEXFLG TYPE STRING,
VFSCBF TYPE STRING,
VFCTYF TYPE STRING,
USE_FLAG TYPE STRING,
UNIT_CHECK TYPE STRING,
DIMID TYPE STRING,
TAB_CONTROL TYPE STRING,
SCR_PROG TYPE STRING,
SCR_NR TYPE STRING,
SCTEXT TYPE STRING,
SCSORT TYPE STRING,
RNDRL_CHECK TYPE STRING,
INTGEN TYPE STRING,
CATYP_0 TYPE STRING,
CATYP_1 TYPE STRING,
CATYP_2 TYPE STRING,
CATYP_3 TYPE STRING,
CATYP_4 TYPE STRING,
SCATYP_0 TYPE STRING,
SCATYP_1 TYPE STRING,
SCATYP_2 TYPE STRING,
SCATYP_3 TYPE STRING,
SCATYP_4 TYPE STRING,
SCATYP_5 TYPE STRING,
SCATYP_6 TYPE STRING,
SCATYP_7 TYPE STRING,
SCATYP_8 TYPE STRING,
SCATYP_9 TYPE STRING,
BERGL_0 TYPE STRING,
BERGL_1 TYPE STRING,
BERGL_2 TYPE STRING,
BERGL_3 TYPE STRING,
BERGL_4 TYPE STRING,
BERGL_5 TYPE STRING,
BERGL_6 TYPE STRING,
BERGL_7 TYPE STRING,
BERGL_8 TYPE STRING,
BERGL_9 TYPE STRING,
PROG_MAINT TYPE STRING,
FORM_MAINT TYPE STRING,
PROG_COND TYPE STRING,
FORM_COND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VV_TVFRFQ_F1_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_VV_TVFRFQ_F1_STR-KAPPL sy-vline 
WA_VV_TVFRFQ_F1_STR-REFQUAN sy-vline 
WA_VV_TVFRFQ_F1_STR-BEZEI sy-vline 
WA_VV_TVFRFQ_F1_STR-TABNAME sy-vline 
WA_VV_TVFRFQ_F1_STR-ASS_FIELD sy-vline 
WA_VV_TVFRFQ_F1_STR-REF_FIELD sy-vline 
WA_VV_TVFRFQ_F1_STR-REF_TAB sy-vline 
WA_VV_TVFRFQ_F1_STR-COMMSTR sy-vline 
WA_VV_TVFRFQ_F1_STR-FLDNAME1 sy-vline 
WA_VV_TVFRFQ_F1_STR-UNITNAME1 sy-vline 
WA_VV_TVFRFQ_F1_STR-FLDNAME2 sy-vline 
WA_VV_TVFRFQ_F1_STR-UNITNAME2 sy-vline 
WA_VV_TVFRFQ_F1_STR-FLDNAME3 sy-vline 
WA_VV_TVFRFQ_F1_STR-UNITNAME3 sy-vline 
WA_VV_TVFRFQ_F1_STR-VARLEN sy-vline 
WA_VV_TVFRFQ_F1_STR-BEZGR sy-vline 
WA_VV_TVFRFQ_F1_STR-UEXFLG sy-vline 
WA_VV_TVFRFQ_F1_STR-VFSCBF sy-vline 
WA_VV_TVFRFQ_F1_STR-VFCTYF sy-vline 
WA_VV_TVFRFQ_F1_STR-USE_FLAG sy-vline 
WA_VV_TVFRFQ_F1_STR-UNIT_CHECK sy-vline 
WA_VV_TVFRFQ_F1_STR-DIMID sy-vline 
WA_VV_TVFRFQ_F1_STR-TAB_CONTROL sy-vline 
WA_VV_TVFRFQ_F1_STR-SCR_PROG sy-vline 
WA_VV_TVFRFQ_F1_STR-SCR_NR sy-vline 
WA_VV_TVFRFQ_F1_STR-SCTEXT sy-vline 
WA_VV_TVFRFQ_F1_STR-SCSORT sy-vline 
WA_VV_TVFRFQ_F1_STR-RNDRL_CHECK sy-vline 
WA_VV_TVFRFQ_F1_STR-INTGEN sy-vline 
WA_VV_TVFRFQ_F1_STR-CATYP_0 sy-vline 
WA_VV_TVFRFQ_F1_STR-CATYP_1 sy-vline 
WA_VV_TVFRFQ_F1_STR-CATYP_2 sy-vline 
WA_VV_TVFRFQ_F1_STR-CATYP_3 sy-vline 
WA_VV_TVFRFQ_F1_STR-CATYP_4 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_0 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_1 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_2 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_3 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_4 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_5 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_6 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_7 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_8 sy-vline 
WA_VV_TVFRFQ_F1_STR-SCATYP_9 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_0 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_1 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_2 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_3 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_4 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_5 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_6 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_7 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_8 sy-vline 
WA_VV_TVFRFQ_F1_STR-BERGL_9 sy-vline 
WA_VV_TVFRFQ_F1_STR-PROG_MAINT sy-vline 
WA_VV_TVFRFQ_F1_STR-FORM_MAINT sy-vline 
WA_VV_TVFRFQ_F1_STR-PROG_COND sy-vline 
WA_VV_TVFRFQ_F1_STR-FORM_COND sy-vline      INTO ld_text SEPARATED BY SPACE.

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