ABAP Select data from SAP table VDVDZV 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 VDVDZV 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 VDVDZV. 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 VDVDZV 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_VDVDZV TYPE STANDARD TABLE OF VDVDZV,
      WA_VDVDZV TYPE VDVDZV,
      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: <VDVDZV> TYPE VDVDZV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDVDZV
*  INTO TABLE @DATA(IT_VDVDZV2).
*--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_VDVDZV INDEX 1 INTO DATA(WA_VDVDZV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDVDZV>-MANDT = 1.
<VDVDZV>-BUKRS = 1.
<VDVDZV>-RFHA = 1.
<VDVDZV>-SSIGN = 1.
<VDVDZV>-WAERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDVDZV-DZVERB, sy-vline,
  WA_VDVDZV-SBEWART, sy-vline,
  WA_VDVDZV-CRUSER, sy-vline,
  WA_VDVDZV-DCRDAT, sy-vline,
  WA_VDVDZV-TCRTIM, sy-vline,
  WA_VDVDZV-UPUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDVDZV 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_VDVDZV 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_VDVDZV INTO WA_VDVDZV.


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

*Conversion exit ALPHA, internal->external for field RPZAHL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDVDZV-RPZAHL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDVDZV-RPZAHL.
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_VDVDZV_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RFHA TYPE STRING,
SSIGN TYPE STRING,
WAERS TYPE STRING,
DZVERB TYPE STRING,
SBEWART TYPE STRING,
CRUSER TYPE STRING,
DCRDAT TYPE STRING,
TCRTIM TYPE STRING,
UPUSER TYPE STRING,
DUPDAT TYPE STRING,
TUPTIM TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
RPZAHL TYPE STRING,
RPBANK TYPE STRING,
SZART TYPE STRING,
ZLSCH TYPE STRING,
UZAWE TYPE STRING,
SPAYRQ TYPE STRING,
SPRSNG TYPE STRING,
SPRGRD TYPE STRING,
SCSPAY TYPE STRING,
ZWELS TYPE STRING,
MNDID TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDVDZV_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_VDVDZV_STR-MANDT sy-vline 
WA_VDVDZV_STR-BUKRS sy-vline 
WA_VDVDZV_STR-RFHA sy-vline 
WA_VDVDZV_STR-SSIGN sy-vline 
WA_VDVDZV_STR-WAERS sy-vline 
WA_VDVDZV_STR-DZVERB sy-vline 
WA_VDVDZV_STR-SBEWART sy-vline 
WA_VDVDZV_STR-CRUSER sy-vline 
WA_VDVDZV_STR-DCRDAT sy-vline 
WA_VDVDZV_STR-TCRTIM sy-vline 
WA_VDVDZV_STR-UPUSER sy-vline 
WA_VDVDZV_STR-DUPDAT sy-vline 
WA_VDVDZV_STR-TUPTIM sy-vline 
WA_VDVDZV_STR-HBKID sy-vline 
WA_VDVDZV_STR-HKTID sy-vline 
WA_VDVDZV_STR-RPZAHL sy-vline 
WA_VDVDZV_STR-RPBANK sy-vline 
WA_VDVDZV_STR-SZART sy-vline 
WA_VDVDZV_STR-ZLSCH sy-vline 
WA_VDVDZV_STR-UZAWE sy-vline 
WA_VDVDZV_STR-SPAYRQ sy-vline 
WA_VDVDZV_STR-SPRSNG sy-vline 
WA_VDVDZV_STR-SPRGRD sy-vline 
WA_VDVDZV_STR-SCSPAY sy-vline 
WA_VDVDZV_STR-ZWELS sy-vline 
WA_VDVDZV_STR-MNDID sy-vline 
WA_VDVDZV_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.