ABAP Select data from SAP table VTVFGICOMF 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 VTVFGICOMF 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 VTVFGICOMF. 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 VTVFGICOMF 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_VTVFGICOMF TYPE STANDARD TABLE OF VTVFGICOMF,
      WA_VTVFGICOMF TYPE VTVFGICOMF,
      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: <VTVFGICOMF> TYPE VTVFGICOMF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVFGICOMF
*  INTO TABLE @DATA(IT_VTVFGICOMF2).
*--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_VTVFGICOMF INDEX 1 INTO DATA(WA_VTVFGICOMF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVFGICOMF>-XMARK = 1.
<VTVFGICOMF>-MANDT = 1.
<VTVFGICOMF>-RIDXRT = 1.
<VTVFGICOMF>-NGIDNR = 1.
<VTVFGICOMF>-NCFNR_COM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVFGICOMF-FLOW_GROUP_ID, sy-vline,
  WA_VTVFGICOMF-CTY_FLOW_CAT, sy-vline,
  WA_VTVFGICOMF-COMMODITY_ID, sy-vline,
  WA_VTVFGICOMF-QUANTITY, sy-vline,
  WA_VTVFGICOMF-UNIT_OF_MEASURE, sy-vline,
  WA_VTVFGICOMF-WEIGHTAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVFGICOMF 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_VTVFGICOMF 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_VTVFGICOMF INTO WA_VTVFGICOMF.


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

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

*Conversion exit CUNIT, internal->external for field PRICE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VTVFGICOMF-PRICE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVFGICOMF-PRICE_UOM.
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_VTVFGICOMF_STR, 
XMARK TYPE STRING,
MANDT TYPE STRING,
RIDXRT TYPE STRING,
NGIDNR TYPE STRING,
NCFNR_COM TYPE STRING,
FLOW_GROUP_ID TYPE STRING,
CTY_FLOW_CAT TYPE STRING,
COMMODITY_ID TYPE STRING,
QUANTITY TYPE STRING,
UNIT_OF_MEASURE TYPE STRING,
WEIGHTAGE TYPE STRING,
PAYMENT_DATE TYPE STRING,
PRICING_DATE TYPE STRING,
DELIVERY_DATE TYPE STRING,
CTY_PRICE TYPE STRING,
PRICE_CURR TYPE STRING,
PRICE_UOQ TYPE STRING,
PRICE_UOM TYPE STRING,
SPREAD TYPE STRING,
QUOT_SRC TYPE STRING,
QUOT_TYPE TYPE STRING,
QUOT_TIME TYPE STRING,
DCSID TYPE STRING,
MIC TYPE STRING,
PRICETYPE TYPE STRING,
TENOR TYPE STRING,
TIMING TYPE STRING,
KEYDATE TYPE STRING,
AVG_PERIOD_START TYPE STRING,
AVG_PERIOD_END TYPE STRING,
REGI_STATE TYPE STRING,
RKONDGR TYPE STRING,
SSIGN TYPE STRING,
FIKTKZ TYPE STRING,
SCWHR TYPE STRING,
BCWHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVFGICOMF_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_VTVFGICOMF_STR-XMARK sy-vline 
WA_VTVFGICOMF_STR-MANDT sy-vline 
WA_VTVFGICOMF_STR-RIDXRT sy-vline 
WA_VTVFGICOMF_STR-NGIDNR sy-vline 
WA_VTVFGICOMF_STR-NCFNR_COM sy-vline 
WA_VTVFGICOMF_STR-FLOW_GROUP_ID sy-vline 
WA_VTVFGICOMF_STR-CTY_FLOW_CAT sy-vline 
WA_VTVFGICOMF_STR-COMMODITY_ID sy-vline 
WA_VTVFGICOMF_STR-QUANTITY sy-vline 
WA_VTVFGICOMF_STR-UNIT_OF_MEASURE sy-vline 
WA_VTVFGICOMF_STR-WEIGHTAGE sy-vline 
WA_VTVFGICOMF_STR-PAYMENT_DATE sy-vline 
WA_VTVFGICOMF_STR-PRICING_DATE sy-vline 
WA_VTVFGICOMF_STR-DELIVERY_DATE sy-vline 
WA_VTVFGICOMF_STR-CTY_PRICE sy-vline 
WA_VTVFGICOMF_STR-PRICE_CURR sy-vline 
WA_VTVFGICOMF_STR-PRICE_UOQ sy-vline 
WA_VTVFGICOMF_STR-PRICE_UOM sy-vline 
WA_VTVFGICOMF_STR-SPREAD sy-vline 
WA_VTVFGICOMF_STR-QUOT_SRC sy-vline 
WA_VTVFGICOMF_STR-QUOT_TYPE sy-vline 
WA_VTVFGICOMF_STR-QUOT_TIME sy-vline 
WA_VTVFGICOMF_STR-DCSID sy-vline 
WA_VTVFGICOMF_STR-MIC sy-vline 
WA_VTVFGICOMF_STR-PRICETYPE sy-vline 
WA_VTVFGICOMF_STR-TENOR sy-vline 
WA_VTVFGICOMF_STR-TIMING sy-vline 
WA_VTVFGICOMF_STR-KEYDATE sy-vline 
WA_VTVFGICOMF_STR-AVG_PERIOD_START sy-vline 
WA_VTVFGICOMF_STR-AVG_PERIOD_END sy-vline 
WA_VTVFGICOMF_STR-REGI_STATE sy-vline 
WA_VTVFGICOMF_STR-RKONDGR sy-vline 
WA_VTVFGICOMF_STR-SSIGN sy-vline 
WA_VTVFGICOMF_STR-FIKTKZ sy-vline 
WA_VTVFGICOMF_STR-SCWHR sy-vline 
WA_VTVFGICOMF_STR-BCWHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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