ABAP Select data from SAP table VDFKKINVBILL_I into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDFKKINVBILL_I
*  INTO TABLE @DATA(IT_VDFKKINVBILL_I2).
*--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_VDFKKINVBILL_I INDEX 1 INTO DATA(WA_VDFKKINVBILL_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDFKKINVBILL_I>-MANDT = 1.
<VDFKKINVBILL_I>-BILLDOCNO = 1.
<VDFKKINVBILL_I>-BILLDOCITEM = 1.
<VDFKKINVBILL_I>-REFITEM = 1.
<VDFKKINVBILL_I>-ITEMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDFKKINVBILL_I-BILL_AMOUNT, sy-vline,
  WA_VDFKKINVBILL_I-BILL_CURR, sy-vline,
  WA_VDFKKINVBILL_I-ITEM_SIMULATED, sy-vline,
  WA_VDFKKINVBILL_I-REVERSALITEM, sy-vline,
  WA_VDFKKINVBILL_I-CORRCAT, sy-vline,
  WA_VDFKKINVBILL_I-POSTREL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDFKKINVBILL_I 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_VDFKKINVBILL_I 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_VDFKKINVBILL_I INTO WA_VDFKKINVBILL_I.


*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 SEGMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDFKKINVBILL_I-SEGMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDFKKINVBILL_I-SEGMT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDFKKINVBILL_I-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDFKKINVBILL_I-VTREF.
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_VDFKKINVBILL_I_STR, 
MANDT TYPE STRING,
BILLDOCNO TYPE STRING,
BILLDOCITEM TYPE STRING,
REFITEM TYPE STRING,
ITEMTYPE TYPE STRING,
BILL_AMOUNT TYPE STRING,
BILL_CURR TYPE STRING,
ITEM_SIMULATED TYPE STRING,
REVERSALITEM TYPE STRING,
CORRCAT TYPE STRING,
POSTREL TYPE STRING,
NOT_BPREL TYPE STRING,
PRINTREL TYPE STRING,
PRINT_SUBSTITUTE TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
FAEDN TYPE STRING,
SPART TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
BUPLA TYPE STRING,
SEGMT TYPE STRING,
PRCTR TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
KOFIZ TYPE STRING,
TAX_DET_TYPE TYPE STRING,
TAX_COUNTRY TYPE STRING,
TAX_DATE_TYPE TYPE STRING,
TAX_INCLUDED TYPE STRING,
TAX_GROUP TYPE STRING,
EXT_TAX_DATE TYPE STRING,
ERMWSKZ TYPE STRING,
MWSKZ TYPE STRING,
ERMWSKZ_B2B TYPE STRING,
MWSKZ_B2B TYPE STRING,
STRKZ TYPE STRING,
TXJCD TYPE STRING,
QSSKZ TYPE STRING,
XANZA TYPE STRING,
STAKZ TYPE STRING,
DEFREV_CAT TYPE STRING,
DEFREV_PDATE TYPE STRING,
DEFREV_STAT TYPE STRING,
RAREL TYPE STRING,
BILLAC_TYPE TYPE STRING,
SERVICE_TYPE TYPE STRING,
QTY_UNIT TYPE STRING,
QTY_BW_REL TYPE STRING,
QTY_FI_CO_REL TYPE STRING,
ALTMD_ORIG TYPE STRING,
VTREF TYPE STRING,
VTPOS TYPE STRING,
SUBAP TYPE STRING,
PREPAID TYPE STRING,
PPREFILL TYPE STRING,
PSCAT TYPE STRING,
DITTYPE TYPE STRING,
ITEM_CRMET TYPE STRING,
BILL_FUNCTION TYPE STRING,
ADD_GROUP TYPE STRING,
PY_GROUP TYPE STRING,
SRC_GROUP TYPE STRING,
DISC_GROUP TYPE STRING,
SEC_REASON TYPE STRING,
BILLREQRSN TYPE STRING,
DISCKEY TYPE STRING,
DISCKEY_VERSNO TYPE STRING,
CONDITION_TYPE TYPE STRING,
QUANTITY_PDP TYPE STRING,
QUANTITY_ADP TYPE STRING,
DUMMY_INVBILL_I_INCL_EEW_PS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDFKKINVBILL_I_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_VDFKKINVBILL_I_STR-MANDT sy-vline 
WA_VDFKKINVBILL_I_STR-BILLDOCNO sy-vline 
WA_VDFKKINVBILL_I_STR-BILLDOCITEM sy-vline 
WA_VDFKKINVBILL_I_STR-REFITEM sy-vline 
WA_VDFKKINVBILL_I_STR-ITEMTYPE sy-vline 
WA_VDFKKINVBILL_I_STR-BILL_AMOUNT sy-vline 
WA_VDFKKINVBILL_I_STR-BILL_CURR sy-vline 
WA_VDFKKINVBILL_I_STR-ITEM_SIMULATED sy-vline 
WA_VDFKKINVBILL_I_STR-REVERSALITEM sy-vline 
WA_VDFKKINVBILL_I_STR-CORRCAT sy-vline 
WA_VDFKKINVBILL_I_STR-POSTREL sy-vline 
WA_VDFKKINVBILL_I_STR-NOT_BPREL sy-vline 
WA_VDFKKINVBILL_I_STR-PRINTREL sy-vline 
WA_VDFKKINVBILL_I_STR-PRINT_SUBSTITUTE sy-vline 
WA_VDFKKINVBILL_I_STR-DATE_FROM sy-vline 
WA_VDFKKINVBILL_I_STR-DATE_TO sy-vline 
WA_VDFKKINVBILL_I_STR-FAEDN sy-vline 
WA_VDFKKINVBILL_I_STR-SPART sy-vline 
WA_VDFKKINVBILL_I_STR-BUKRS sy-vline 
WA_VDFKKINVBILL_I_STR-GSBER sy-vline 
WA_VDFKKINVBILL_I_STR-BUPLA sy-vline 
WA_VDFKKINVBILL_I_STR-SEGMT sy-vline 
WA_VDFKKINVBILL_I_STR-PRCTR sy-vline 
WA_VDFKKINVBILL_I_STR-HVORG sy-vline 
WA_VDFKKINVBILL_I_STR-TVORG sy-vline 
WA_VDFKKINVBILL_I_STR-KOFIZ sy-vline 
WA_VDFKKINVBILL_I_STR-TAX_DET_TYPE sy-vline 
WA_VDFKKINVBILL_I_STR-TAX_COUNTRY sy-vline 
WA_VDFKKINVBILL_I_STR-TAX_DATE_TYPE sy-vline 
WA_VDFKKINVBILL_I_STR-TAX_INCLUDED sy-vline 
WA_VDFKKINVBILL_I_STR-TAX_GROUP sy-vline 
WA_VDFKKINVBILL_I_STR-EXT_TAX_DATE sy-vline 
WA_VDFKKINVBILL_I_STR-ERMWSKZ sy-vline 
WA_VDFKKINVBILL_I_STR-MWSKZ sy-vline 
WA_VDFKKINVBILL_I_STR-ERMWSKZ_B2B sy-vline 
WA_VDFKKINVBILL_I_STR-MWSKZ_B2B sy-vline 
WA_VDFKKINVBILL_I_STR-STRKZ sy-vline 
WA_VDFKKINVBILL_I_STR-TXJCD sy-vline 
WA_VDFKKINVBILL_I_STR-QSSKZ sy-vline 
WA_VDFKKINVBILL_I_STR-XANZA sy-vline 
WA_VDFKKINVBILL_I_STR-STAKZ sy-vline 
WA_VDFKKINVBILL_I_STR-DEFREV_CAT sy-vline 
WA_VDFKKINVBILL_I_STR-DEFREV_PDATE sy-vline 
WA_VDFKKINVBILL_I_STR-DEFREV_STAT sy-vline 
WA_VDFKKINVBILL_I_STR-RAREL sy-vline 
WA_VDFKKINVBILL_I_STR-BILLAC_TYPE sy-vline 
WA_VDFKKINVBILL_I_STR-SERVICE_TYPE sy-vline 
WA_VDFKKINVBILL_I_STR-QTY_UNIT sy-vline 
WA_VDFKKINVBILL_I_STR-QTY_BW_REL sy-vline 
WA_VDFKKINVBILL_I_STR-QTY_FI_CO_REL sy-vline 
WA_VDFKKINVBILL_I_STR-ALTMD_ORIG sy-vline 
WA_VDFKKINVBILL_I_STR-VTREF sy-vline 
WA_VDFKKINVBILL_I_STR-VTPOS sy-vline 
WA_VDFKKINVBILL_I_STR-SUBAP sy-vline 
WA_VDFKKINVBILL_I_STR-PREPAID sy-vline 
WA_VDFKKINVBILL_I_STR-PPREFILL sy-vline 
WA_VDFKKINVBILL_I_STR-PSCAT sy-vline 
WA_VDFKKINVBILL_I_STR-DITTYPE sy-vline 
WA_VDFKKINVBILL_I_STR-ITEM_CRMET sy-vline 
WA_VDFKKINVBILL_I_STR-BILL_FUNCTION sy-vline 
WA_VDFKKINVBILL_I_STR-ADD_GROUP sy-vline 
WA_VDFKKINVBILL_I_STR-PY_GROUP sy-vline 
WA_VDFKKINVBILL_I_STR-SRC_GROUP sy-vline 
WA_VDFKKINVBILL_I_STR-DISC_GROUP sy-vline 
WA_VDFKKINVBILL_I_STR-SEC_REASON sy-vline 
WA_VDFKKINVBILL_I_STR-BILLREQRSN sy-vline 
WA_VDFKKINVBILL_I_STR-DISCKEY sy-vline 
WA_VDFKKINVBILL_I_STR-DISCKEY_VERSNO sy-vline 
WA_VDFKKINVBILL_I_STR-CONDITION_TYPE sy-vline 
WA_VDFKKINVBILL_I_STR-QUANTITY_PDP sy-vline 
WA_VDFKKINVBILL_I_STR-QUANTITY_ADP sy-vline 
WA_VDFKKINVBILL_I_STR-DUMMY_INVBILL_I_INCL_EEW_PS sy-vline 
WA_VDFKKINVBILL_I_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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