ABAP Select data from SAP table VTVFGSSEG 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 VTVFGSSEG 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 VTVFGSSEG. 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 VTVFGSSEG 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_VTVFGSSEG TYPE STANDARD TABLE OF VTVFGSSEG,
      WA_VTVFGSSEG TYPE VTVFGSSEG,
      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: <VTVFGSSEG> TYPE VTVFGSSEG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVFGSSEG
*  INTO TABLE @DATA(IT_VTVFGSSEG2).
*--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_VTVFGSSEG INDEX 1 INTO DATA(WA_VTVFGSSEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVFGSSEG>-KURSTG = 1.
<VTVFGSSEG>-KURSTB = 1.
<VTVFGSSEG>-BCURVE = 1.
<VTVFGSSEG>-BCURVEB = 1.
<VTVFGSSEG>-WPKURSART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVFGSSEG-IDXART, sy-vline,
  WA_VTVFGSSEG-DVOLARTG, sy-vline,
  WA_VTVFGSSEG-DVOLARTB, sy-vline,
  WA_VTVFGSSEG-ZVOLARTG, sy-vline,
  WA_VTVFGSSEG-ZVOLARTB, sy-vline,
  WA_VTVFGSSEG-WVOLARTG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVFGSSEG 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_VTVFGSSEG 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_VTVFGSSEG INTO WA_VTVFGSSEG.


*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_VTVFGSSEG_STR, 
KURSTG TYPE STRING,
KURSTB TYPE STRING,
BCURVE TYPE STRING,
BCURVEB TYPE STRING,
WPKURSART TYPE STRING,
IDXART TYPE STRING,
DVOLARTG TYPE STRING,
DVOLARTB TYPE STRING,
ZVOLARTG TYPE STRING,
ZVOLARTB TYPE STRING,
WVOLARTG TYPE STRING,
WVOLARTB TYPE STRING,
IXVOLARTG TYPE STRING,
IXVOLARTB TYPE STRING,
HWVOLARTG TYPE STRING,
HWVOLARTB TYPE STRING,
KORRARTG TYPE STRING,
KORRARTB TYPE STRING,
VNAME TYPE STRING,
COVOLTYPB TYPE STRING,
COVOLTYPA TYPE STRING,
COPRTYPE TYPE STRING,
BCURVE_RF TYPE STRING,
BCURVEB_RF TYPE STRING,
BSP_CURVE_B TYPE STRING,
BSP_CURVE_A TYPE STRING,
XREAL_CASHF TYPE STRING,
CALCVERF TYPE STRING,
WPPVART TYPE STRING,
WKTAGE TYPE STRING,
SVOLART TYPE STRING,
XHOR_CASHF TYPE STRING,
XINTOPT TYPE STRING,
XIMPLOPT TYPE STRING,
NAMEAUS TYPE STRING,
SET_NAME TYPE STRING,
STUECKZINS TYPE STRING,
FLG_ACCR_INT TYPE STRING,
DISB_START TYPE STRING,
DISB_CAL TYPE STRING,
VALUATION_MODEL TYPE STRING,
NUMBER_OF_STEPS TYPE STRING,
MAX_STEPLENGTH TYPE STRING,
PREPAYMENT TYPE STRING,
X_PREPAYMENT TYPE STRING,
FLG_WITH_COMPENS TYPE STRING,
FLG_TERMINATED_D TYPE STRING,
COMAXAGEPR TYPE STRING,
X_INTVAL TYPE STRING,
COEXPVALTYP TYPE STRING,
XCREDITSPREAD TYPE STRING,
CSPREAD_TYPE TYPE STRING,
CTY_CURVE_B TYPE STRING,
CTY_CURVE_M TYPE STRING,
CTY_CURVE_A TYPE STRING,
XDDELIVERY TYPE STRING,
DD_DAYS TYPE STRING,
XCSP_USE_VAR_RT TYPE STRING,
CSP_FWD_RT_TYPE TYPE STRING,
DISPUOM TYPE STRING,
QTYCALMETH TYPE STRING,
FUTCALMETH TYPE STRING,
BSP_DERI_EVAL TYPE STRING,
BSP_DERI_FWD TYPE STRING,
CSP_DERIVE_BP TYPE STRING,
CSP_DERIVE_OWN TYPE STRING,
BP_RELTYP TYPE STRING,
OWN_BUKRS TYPE STRING,
MAX_AGE_CS_REDEF TYPE STRING,
MAX_AGE_CS TYPE STRING,
XYTMMP TYPE STRING,
FX_VAL_METH TYPE STRING,
VOLA_SMILE_CON_METH TYPE STRING,
FX_FIXING_METH TYPE STRING,
CONSIDER_OPT_SETTLEMENT TYPE STRING,
XEXTBW TYPE STRING,
XDEST_T1 TYPE STRING,
XFUNC_T1 TYPE STRING,
XDEST_T2 TYPE STRING,
XFUNC_T2 TYPE STRING,
IDX TYPE STRING,
BFART TYPE STRING,
XSTDINDEX TYPE STRING,
STDBETAF TYPE STRING,
XCONVADJ TYPE STRING,
XKOMPRESS TYPE STRING,
DIFFBAR TYPE STRING,
DELTA_KNZ TYPE STRING,
STAT_KNZ TYPE STRING,
OZ_FROM TYPE STRING,
SOPPZINS TYPE STRING,
SEFFZINS TYPE STRING,
SDATUM TYPE STRING,
SEXTGAP TYPE STRING,
EXDEST TYPE STRING,
EXFUNC TYPE STRING,
BILVOLKNZ TYPE STRING,
LFZENDE TYPE STRING,
DEVTERM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVFGSSEG_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_VTVFGSSEG_STR-KURSTG sy-vline 
WA_VTVFGSSEG_STR-KURSTB sy-vline 
WA_VTVFGSSEG_STR-BCURVE sy-vline 
WA_VTVFGSSEG_STR-BCURVEB sy-vline 
WA_VTVFGSSEG_STR-WPKURSART sy-vline 
WA_VTVFGSSEG_STR-IDXART sy-vline 
WA_VTVFGSSEG_STR-DVOLARTG sy-vline 
WA_VTVFGSSEG_STR-DVOLARTB sy-vline 
WA_VTVFGSSEG_STR-ZVOLARTG sy-vline 
WA_VTVFGSSEG_STR-ZVOLARTB sy-vline 
WA_VTVFGSSEG_STR-WVOLARTG sy-vline 
WA_VTVFGSSEG_STR-WVOLARTB sy-vline 
WA_VTVFGSSEG_STR-IXVOLARTG sy-vline 
WA_VTVFGSSEG_STR-IXVOLARTB sy-vline 
WA_VTVFGSSEG_STR-HWVOLARTG sy-vline 
WA_VTVFGSSEG_STR-HWVOLARTB sy-vline 
WA_VTVFGSSEG_STR-KORRARTG sy-vline 
WA_VTVFGSSEG_STR-KORRARTB sy-vline 
WA_VTVFGSSEG_STR-VNAME sy-vline 
WA_VTVFGSSEG_STR-COVOLTYPB sy-vline 
WA_VTVFGSSEG_STR-COVOLTYPA sy-vline 
WA_VTVFGSSEG_STR-COPRTYPE sy-vline 
WA_VTVFGSSEG_STR-BCURVE_RF sy-vline 
WA_VTVFGSSEG_STR-BCURVEB_RF sy-vline 
WA_VTVFGSSEG_STR-BSP_CURVE_B sy-vline 
WA_VTVFGSSEG_STR-BSP_CURVE_A sy-vline 
WA_VTVFGSSEG_STR-XREAL_CASHF sy-vline 
WA_VTVFGSSEG_STR-CALCVERF sy-vline 
WA_VTVFGSSEG_STR-WPPVART sy-vline 
WA_VTVFGSSEG_STR-WKTAGE sy-vline 
WA_VTVFGSSEG_STR-SVOLART sy-vline 
WA_VTVFGSSEG_STR-XHOR_CASHF sy-vline 
WA_VTVFGSSEG_STR-XINTOPT sy-vline 
WA_VTVFGSSEG_STR-XIMPLOPT sy-vline 
WA_VTVFGSSEG_STR-NAMEAUS sy-vline 
WA_VTVFGSSEG_STR-SET_NAME sy-vline 
WA_VTVFGSSEG_STR-STUECKZINS sy-vline 
WA_VTVFGSSEG_STR-FLG_ACCR_INT sy-vline 
WA_VTVFGSSEG_STR-DISB_START sy-vline 
WA_VTVFGSSEG_STR-DISB_CAL sy-vline 
WA_VTVFGSSEG_STR-VALUATION_MODEL sy-vline 
WA_VTVFGSSEG_STR-NUMBER_OF_STEPS sy-vline 
WA_VTVFGSSEG_STR-MAX_STEPLENGTH sy-vline 
WA_VTVFGSSEG_STR-PREPAYMENT sy-vline 
WA_VTVFGSSEG_STR-X_PREPAYMENT sy-vline 
WA_VTVFGSSEG_STR-FLG_WITH_COMPENS sy-vline 
WA_VTVFGSSEG_STR-FLG_TERMINATED_D sy-vline 
WA_VTVFGSSEG_STR-COMAXAGEPR sy-vline 
WA_VTVFGSSEG_STR-X_INTVAL sy-vline 
WA_VTVFGSSEG_STR-COEXPVALTYP sy-vline 
WA_VTVFGSSEG_STR-XCREDITSPREAD sy-vline 
WA_VTVFGSSEG_STR-CSPREAD_TYPE sy-vline 
WA_VTVFGSSEG_STR-CTY_CURVE_B sy-vline 
WA_VTVFGSSEG_STR-CTY_CURVE_M sy-vline 
WA_VTVFGSSEG_STR-CTY_CURVE_A sy-vline 
WA_VTVFGSSEG_STR-XDDELIVERY sy-vline 
WA_VTVFGSSEG_STR-DD_DAYS sy-vline 
WA_VTVFGSSEG_STR-XCSP_USE_VAR_RT sy-vline 
WA_VTVFGSSEG_STR-CSP_FWD_RT_TYPE sy-vline 
WA_VTVFGSSEG_STR-DISPUOM sy-vline 
WA_VTVFGSSEG_STR-QTYCALMETH sy-vline 
WA_VTVFGSSEG_STR-FUTCALMETH sy-vline 
WA_VTVFGSSEG_STR-BSP_DERI_EVAL sy-vline 
WA_VTVFGSSEG_STR-BSP_DERI_FWD sy-vline 
WA_VTVFGSSEG_STR-CSP_DERIVE_BP sy-vline 
WA_VTVFGSSEG_STR-CSP_DERIVE_OWN sy-vline 
WA_VTVFGSSEG_STR-BP_RELTYP sy-vline 
WA_VTVFGSSEG_STR-OWN_BUKRS sy-vline 
WA_VTVFGSSEG_STR-MAX_AGE_CS_REDEF sy-vline 
WA_VTVFGSSEG_STR-MAX_AGE_CS sy-vline 
WA_VTVFGSSEG_STR-XYTMMP sy-vline 
WA_VTVFGSSEG_STR-FX_VAL_METH sy-vline 
WA_VTVFGSSEG_STR-VOLA_SMILE_CON_METH sy-vline 
WA_VTVFGSSEG_STR-FX_FIXING_METH sy-vline 
WA_VTVFGSSEG_STR-CONSIDER_OPT_SETTLEMENT sy-vline 
WA_VTVFGSSEG_STR-XEXTBW sy-vline 
WA_VTVFGSSEG_STR-XDEST_T1 sy-vline 
WA_VTVFGSSEG_STR-XFUNC_T1 sy-vline 
WA_VTVFGSSEG_STR-XDEST_T2 sy-vline 
WA_VTVFGSSEG_STR-XFUNC_T2 sy-vline 
WA_VTVFGSSEG_STR-IDX sy-vline 
WA_VTVFGSSEG_STR-BFART sy-vline 
WA_VTVFGSSEG_STR-XSTDINDEX sy-vline 
WA_VTVFGSSEG_STR-STDBETAF sy-vline 
WA_VTVFGSSEG_STR-XCONVADJ sy-vline 
WA_VTVFGSSEG_STR-XKOMPRESS sy-vline 
WA_VTVFGSSEG_STR-DIFFBAR sy-vline 
WA_VTVFGSSEG_STR-DELTA_KNZ sy-vline 
WA_VTVFGSSEG_STR-STAT_KNZ sy-vline 
WA_VTVFGSSEG_STR-OZ_FROM sy-vline 
WA_VTVFGSSEG_STR-SOPPZINS sy-vline 
WA_VTVFGSSEG_STR-SEFFZINS sy-vline 
WA_VTVFGSSEG_STR-SDATUM sy-vline 
WA_VTVFGSSEG_STR-SEXTGAP sy-vline 
WA_VTVFGSSEG_STR-EXDEST sy-vline 
WA_VTVFGSSEG_STR-EXFUNC sy-vline 
WA_VTVFGSSEG_STR-BILVOLKNZ sy-vline 
WA_VTVFGSSEG_STR-LFZENDE sy-vline 
WA_VTVFGSSEG_STR-DEVTERM sy-vline      INTO ld_text SEPARATED BY SPACE.

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