ABAP Select data from SAP table VVDSONSI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVDSONSI
*  INTO TABLE @DATA(IT_VVDSONSI2).
*--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_VVDSONSI INDEX 1 INTO DATA(WA_VVDSONSI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVDSONSI>-MANDT = 1.
<VVDSONSI>-SNUMOBJ = 1.
<VVDSONSI>-SOBJEKT = 1.
<VVDSONSI>-RSICHER = 1.
<VVDSONSI>-PARTNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVDSONSI-SSOND, sy-vline,
  WA_VVDSONSI-SRANG, sy-vline,
  WA_VVDSONSI-BSOND, sy-vline,
  WA_VVDSONSI-BTREU, sy-vline,
  WA_VVDSONSI-SWHR, sy-vline,
  WA_VVDSONSI-DSOND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVDSONSI 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_VVDSONSI 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_VVDSONSI INTO WA_VVDSONSI.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VVDSONSI-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVDSONSI-PARTNR.
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_VVDSONSI_STR, 
MANDT TYPE STRING,
SNUMOBJ TYPE STRING,
SOBJEKT TYPE STRING,
RSICHER TYPE STRING,
PARTNR TYPE STRING,
SSOND TYPE STRING,
SRANG TYPE STRING,
BSOND TYPE STRING,
BTREU TYPE STRING,
SWHR TYPE STRING,
DSOND TYPE STRING,
KOMM1 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,
STREUKZ TYPE STRING,
ADD_DATA TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVDSONSI_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_VVDSONSI_STR-MANDT sy-vline 
WA_VVDSONSI_STR-SNUMOBJ sy-vline 
WA_VVDSONSI_STR-SOBJEKT sy-vline 
WA_VVDSONSI_STR-RSICHER sy-vline 
WA_VVDSONSI_STR-PARTNR sy-vline 
WA_VVDSONSI_STR-SSOND sy-vline 
WA_VVDSONSI_STR-SRANG sy-vline 
WA_VVDSONSI_STR-BSOND sy-vline 
WA_VVDSONSI_STR-BTREU sy-vline 
WA_VVDSONSI_STR-SWHR sy-vline 
WA_VVDSONSI_STR-DSOND sy-vline 
WA_VVDSONSI_STR-KOMM1 sy-vline 
WA_VVDSONSI_STR-RERF sy-vline 
WA_VVDSONSI_STR-DERF sy-vline 
WA_VVDSONSI_STR-TERF sy-vline 
WA_VVDSONSI_STR-REHER sy-vline 
WA_VVDSONSI_STR-RBEAR sy-vline 
WA_VVDSONSI_STR-DBEAR sy-vline 
WA_VVDSONSI_STR-TBEAR sy-vline 
WA_VVDSONSI_STR-RBHER sy-vline 
WA_VVDSONSI_STR-STREUKZ sy-vline 
WA_VVDSONSI_STR-ADD_DATA sy-vline 
WA_VVDSONSI_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.