ABAP Select data from SAP table VDZNBPI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDZNBPI
*  INTO TABLE @DATA(IT_VDZNBPI2).
*--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_VDZNBPI INDEX 1 INTO DATA(WA_VDZNBPI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDZNBPI>-BSEGKEY = 1.
<VDZNBPI>-BUKRS = 1.
<VDZNBPI>-BELNR = 1.
<VDZNBPI>-GJAHR = 1.
<VDZNBPI>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDZNBPI-TCODE, sy-vline,
  WA_VDZNBPI-VALUT, sy-vline,
  WA_VDZNBPI-AZIDT, sy-vline,
  WA_VDZNBPI-KUKEY, sy-vline,
  WA_VDZNBPI-ESNUM, sy-vline,
  WA_VDZNBPI-LAUFI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDZNBPI 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_VDZNBPI 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_VDZNBPI INTO WA_VDZNBPI.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VDZNBPI-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDZNBPI-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field VERTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDZNBPI-VERTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDZNBPI-VERTN.
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_VDZNBPI_STR, 
BSEGKEY TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
TCODE TYPE STRING,
VALUT TYPE STRING,
AZIDT TYPE STRING,
KUKEY TYPE STRING,
ESNUM TYPE STRING,
LAUFI TYPE STRING,
LAUFD TYPE STRING,
KUNNR TYPE STRING,
PARTN TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
DMBTR TYPE STRING,
HWAER TYPE STRING,
HBBLZ TYPE STRING,
HBLD1 TYPE STRING,
KTONR TYPE STRING,
KTOIH TYPE STRING,
AZDAT TYPE STRING,
AZNUM TYPE STRING,
EFART TYPE STRING,
BUDAT TYPE STRING,
VGINT TYPE STRING,
BUTXT TYPE STRING,
PABKS TYPE STRING,
PABLZ TYPE STRING,
PAKTO TYPE STRING,
RZAWE TYPE STRING,
TXTVV TYPE STRING,
INFO1 TYPE STRING,
INFO2 TYPE STRING,
VERTT TYPE STRING,
VERTN TYPE STRING,
FEBREIDX TYPE STRING,
VWEZW1 TYPE STRING,
VWEZW2 TYPE STRING,
PIBAN TYPE STRING,
PASWI TYPE STRING,
KKREF TYPE STRING,
TRNID TYPE STRING,
DIP_KUKEY TYPE STRING,
DIP_ESNUM TYPE STRING,
DIP_ID TYPE STRING,
DIP_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDZNBPI_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_VDZNBPI_STR-BSEGKEY sy-vline 
WA_VDZNBPI_STR-BUKRS sy-vline 
WA_VDZNBPI_STR-BELNR sy-vline 
WA_VDZNBPI_STR-GJAHR sy-vline 
WA_VDZNBPI_STR-BUZEI sy-vline 
WA_VDZNBPI_STR-TCODE sy-vline 
WA_VDZNBPI_STR-VALUT sy-vline 
WA_VDZNBPI_STR-AZIDT sy-vline 
WA_VDZNBPI_STR-KUKEY sy-vline 
WA_VDZNBPI_STR-ESNUM sy-vline 
WA_VDZNBPI_STR-LAUFI sy-vline 
WA_VDZNBPI_STR-LAUFD sy-vline 
WA_VDZNBPI_STR-KUNNR sy-vline 
WA_VDZNBPI_STR-PARTN sy-vline 
WA_VDZNBPI_STR-WRBTR sy-vline 
WA_VDZNBPI_STR-WAERS sy-vline 
WA_VDZNBPI_STR-DMBTR sy-vline 
WA_VDZNBPI_STR-HWAER sy-vline 
WA_VDZNBPI_STR-HBBLZ sy-vline 
WA_VDZNBPI_STR-HBLD1 sy-vline 
WA_VDZNBPI_STR-KTONR sy-vline 
WA_VDZNBPI_STR-KTOIH sy-vline 
WA_VDZNBPI_STR-AZDAT sy-vline 
WA_VDZNBPI_STR-AZNUM sy-vline 
WA_VDZNBPI_STR-EFART sy-vline 
WA_VDZNBPI_STR-BUDAT sy-vline 
WA_VDZNBPI_STR-VGINT sy-vline 
WA_VDZNBPI_STR-BUTXT sy-vline 
WA_VDZNBPI_STR-PABKS sy-vline 
WA_VDZNBPI_STR-PABLZ sy-vline 
WA_VDZNBPI_STR-PAKTO sy-vline 
WA_VDZNBPI_STR-RZAWE sy-vline 
WA_VDZNBPI_STR-TXTVV sy-vline 
WA_VDZNBPI_STR-INFO1 sy-vline 
WA_VDZNBPI_STR-INFO2 sy-vline 
WA_VDZNBPI_STR-VERTT sy-vline 
WA_VDZNBPI_STR-VERTN sy-vline 
WA_VDZNBPI_STR-FEBREIDX sy-vline 
WA_VDZNBPI_STR-VWEZW1 sy-vline 
WA_VDZNBPI_STR-VWEZW2 sy-vline 
WA_VDZNBPI_STR-PIBAN sy-vline 
WA_VDZNBPI_STR-PASWI sy-vline 
WA_VDZNBPI_STR-KKREF sy-vline 
WA_VDZNBPI_STR-TRNID sy-vline 
WA_VDZNBPI_STR-DIP_KUKEY sy-vline 
WA_VDZNBPI_STR-DIP_ESNUM sy-vline 
WA_VDZNBPI_STR-DIP_ID sy-vline 
WA_VDZNBPI_STR-DIP_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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