ABAP Select data from SAP table V_TVFRFQ 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 V_TVFRFQ 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 V_TVFRFQ. 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 V_TVFRFQ 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_V_TVFRFQ TYPE STANDARD TABLE OF V_TVFRFQ,
      WA_V_TVFRFQ TYPE V_TVFRFQ,
      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: <V_TVFRFQ> TYPE V_TVFRFQ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TVFRFQ
*  INTO TABLE @DATA(IT_V_TVFRFQ2).
*--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_V_TVFRFQ INDEX 1 INTO DATA(WA_V_TVFRFQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TVFRFQ>-KAPPL = 1.
<V_TVFRFQ>-REFQUAN = 1.
<V_TVFRFQ>-BEZEI = 1.
<V_TVFRFQ>-USE_FLAG = 1.
<V_TVFRFQ>-UNIT_CHECK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TVFRFQ-DIMID, sy-vline,
  WA_V_TVFRFQ-VARLEN, sy-vline,
  WA_V_TVFRFQ-TAB_CONTROL, sy-vline,
  WA_V_TVFRFQ-SCR_PROG, sy-vline,
  WA_V_TVFRFQ-SCR_NR, sy-vline,
  WA_V_TVFRFQ-TABNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TVFRFQ 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_V_TVFRFQ 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_V_TVFRFQ INTO WA_V_TVFRFQ.


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

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