ABAP Select data from SAP table VDSDV4 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 VDSDV4 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 VDSDV4. 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 VDSDV4 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_VDSDV4 TYPE STANDARD TABLE OF VDSDV4,
      WA_VDSDV4 TYPE VDSDV4,
      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: <VDSDV4> TYPE VDSDV4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VDSDV4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VDSDV4
  INTO TABLE IT_VDSDV4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDSDV4
*  INTO TABLE @DATA(IT_VDSDV42).
*--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_VDSDV4 INDEX 1 INTO DATA(WA_VDSDV42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VDSDV4 ASSIGNING <VDSDV4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDSDV4>-MANDT = 1.
<VDSDV4>-RSICHER = 1.
<VDSDV4>-RERF = 1.
<VDSDV4>-DERF = 1.
<VDSDV4>-TERF = 1.

ENDLOOP.

LOOP AT IT_VDSDV4 INTO WA_VDSDV4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDSDV4-REHER, sy-vline,
  WA_VDSDV4-RBEAR, sy-vline,
  WA_VDSDV4-DBEAR, sy-vline,
  WA_VDSDV4-TBEAR, sy-vline,
  WA_VDSDV4-RBHER, sy-vline,
  WA_VDSDV4-SSICH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDSDV4 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_VDSDV4 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_VDSDV4 INTO WA_VDSDV4.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDSDV4-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDSDV4-RANL.
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_VDSDV4_STR, 
MANDT TYPE STRING,
RSICHER TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
SSICH TYPE STRING,
SSICHART TYPE STRING,
BVALHYP TYPE STRING,
SWHRVAL TYPE STRING,
XADRDV4 TYPE STRING,
XGBAMT TYPE STRING,
XGVON TYPE STRING,
NBANDNR TYPE STRING,
NBLATTNR TYPE STRING,
XNRABT3 TYPE STRING,
DEINTRAG TYPE STRING,
XPARTNER TYPE STRING,
XAKT TYPE STRING,
KOMM1 TYPE STRING,
KOMM2 TYPE STRING,
RANL TYPE STRING,
SLAENDER TYPE STRING,
UEBERGABE_DAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDSDV4_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_VDSDV4_STR-MANDT sy-vline 
WA_VDSDV4_STR-RSICHER sy-vline 
WA_VDSDV4_STR-RERF sy-vline 
WA_VDSDV4_STR-DERF sy-vline 
WA_VDSDV4_STR-TERF sy-vline 
WA_VDSDV4_STR-REHER sy-vline 
WA_VDSDV4_STR-RBEAR sy-vline 
WA_VDSDV4_STR-DBEAR sy-vline 
WA_VDSDV4_STR-TBEAR sy-vline 
WA_VDSDV4_STR-RBHER sy-vline 
WA_VDSDV4_STR-SSICH sy-vline 
WA_VDSDV4_STR-SSICHART sy-vline 
WA_VDSDV4_STR-BVALHYP sy-vline 
WA_VDSDV4_STR-SWHRVAL sy-vline 
WA_VDSDV4_STR-XADRDV4 sy-vline 
WA_VDSDV4_STR-XGBAMT sy-vline 
WA_VDSDV4_STR-XGVON sy-vline 
WA_VDSDV4_STR-NBANDNR sy-vline 
WA_VDSDV4_STR-NBLATTNR sy-vline 
WA_VDSDV4_STR-XNRABT3 sy-vline 
WA_VDSDV4_STR-DEINTRAG sy-vline 
WA_VDSDV4_STR-XPARTNER sy-vline 
WA_VDSDV4_STR-XAKT sy-vline 
WA_VDSDV4_STR-KOMM1 sy-vline 
WA_VDSDV4_STR-KOMM2 sy-vline 
WA_VDSDV4_STR-RANL sy-vline 
WA_VDSDV4_STR-SLAENDER sy-vline 
WA_VDSDV4_STR-UEBERGABE_DAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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