ABAP Select data from SAP table VSDD250002 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VSDD250002 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 VSDD250002. 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 VSDD250002 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_VSDD250002 TYPE STANDARD TABLE OF VSDD250002,
      WA_VSDD250002 TYPE VSDD250002,
      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: <VSDD250002> TYPE VSDD250002.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VSDD250002.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VSDD250002
  INTO TABLE IT_VSDD250002.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VSDD250002
*  INTO TABLE @DATA(IT_VSDD2500022).
*--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_VSDD250002 INDEX 1 INTO DATA(WA_VSDD2500022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VSDD250002 ASSIGNING <VSDD250002>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VSDD250002>-VIEWNAME = 1.
<VSDD250002>-AS4LOCAL = 1.
<VSDD250002>-AS4VERS = 1.
<VSDD250002>-DDLANGUAGE = 1.
<VSDD250002>-AGGTYPE = 1.

ENDLOOP.

LOOP AT IT_VSDD250002 INTO WA_VSDD250002.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VSDD250002-APPLCLASS, sy-vline,
  WA_VSDD250002-AUTHCLASS, sy-vline,
  WA_VSDD250002-READONLY, sy-vline,
  WA_VSDD250002-ROOTTAB, sy-vline,
  WA_VSDD250002-AS4USER, sy-vline,
  WA_VSDD250002-AS4DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VSDD250002 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_VSDD250002 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_VSDD250002 INTO WA_VSDD250002.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VSDD250002_STR, 
VIEWNAME TYPE STRING,
AS4LOCAL TYPE STRING,
AS4VERS TYPE STRING,
DDLANGUAGE TYPE STRING,
AGGTYPE TYPE STRING,
APPLCLASS TYPE STRING,
AUTHCLASS TYPE STRING,
READONLY TYPE STRING,
ROOTTAB TYPE STRING,
AS4USER TYPE STRING,
AS4DATE TYPE STRING,
AS4TIME TYPE STRING,
DDTEXT TYPE STRING,
VIEWCLASS TYPE STRING,
ACTFLAG TYPE STRING,
MASTERLANG TYPE STRING,
CUSTOMAUTH TYPE STRING,
VIEWGRANT TYPE STRING,
GLOBALFLAG TYPE STRING,
MANKEY TYPE STRING,
DBREFNAME TYPE STRING,
ALLDATAINCL TYPE STRING,
WITH_PARAMETERS TYPE STRING,
EXVIEW_INCLUDED TYPE STRING,
EXPR_IS_USED TYPE STRING,
KEYMAX_FEATURE TYPE STRING,
KEYLEN_FEATURE TYPE STRING,
TABLEN_FEATURE TYPE STRING,
NONTRP_INCLUDED TYPE STRING,
VIEWREF TYPE STRING,
VIEWREF_ERR TYPE STRING,
VIEWREF_POS_CHG TYPE STRING,
TBFUNC_INCLUDED TYPE STRING,
SESSION_VAR_EX TYPE STRING,
COMPRFLAG TYPE STRING,
USED_SESSION_VARS TYPE STRING,
SHLPEXI TYPE STRING,
HDB_ONLY_ENTITY_INCLUDED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VSDD250002_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_VSDD250002_STR-VIEWNAME sy-vline 
WA_VSDD250002_STR-AS4LOCAL sy-vline 
WA_VSDD250002_STR-AS4VERS sy-vline 
WA_VSDD250002_STR-DDLANGUAGE sy-vline 
WA_VSDD250002_STR-AGGTYPE sy-vline 
WA_VSDD250002_STR-APPLCLASS sy-vline 
WA_VSDD250002_STR-AUTHCLASS sy-vline 
WA_VSDD250002_STR-READONLY sy-vline 
WA_VSDD250002_STR-ROOTTAB sy-vline 
WA_VSDD250002_STR-AS4USER sy-vline 
WA_VSDD250002_STR-AS4DATE sy-vline 
WA_VSDD250002_STR-AS4TIME sy-vline 
WA_VSDD250002_STR-DDTEXT sy-vline 
WA_VSDD250002_STR-VIEWCLASS sy-vline 
WA_VSDD250002_STR-ACTFLAG sy-vline 
WA_VSDD250002_STR-MASTERLANG sy-vline 
WA_VSDD250002_STR-CUSTOMAUTH sy-vline 
WA_VSDD250002_STR-VIEWGRANT sy-vline 
WA_VSDD250002_STR-GLOBALFLAG sy-vline 
WA_VSDD250002_STR-MANKEY sy-vline 
WA_VSDD250002_STR-DBREFNAME sy-vline 
WA_VSDD250002_STR-ALLDATAINCL sy-vline 
WA_VSDD250002_STR-WITH_PARAMETERS sy-vline 
WA_VSDD250002_STR-EXVIEW_INCLUDED sy-vline 
WA_VSDD250002_STR-EXPR_IS_USED sy-vline 
WA_VSDD250002_STR-KEYMAX_FEATURE sy-vline 
WA_VSDD250002_STR-KEYLEN_FEATURE sy-vline 
WA_VSDD250002_STR-TABLEN_FEATURE sy-vline 
WA_VSDD250002_STR-NONTRP_INCLUDED sy-vline 
WA_VSDD250002_STR-VIEWREF sy-vline 
WA_VSDD250002_STR-VIEWREF_ERR sy-vline 
WA_VSDD250002_STR-VIEWREF_POS_CHG sy-vline 
WA_VSDD250002_STR-TBFUNC_INCLUDED sy-vline 
WA_VSDD250002_STR-SESSION_VAR_EX sy-vline 
WA_VSDD250002_STR-COMPRFLAG sy-vline 
WA_VSDD250002_STR-USED_SESSION_VARS sy-vline 
WA_VSDD250002_STR-SHLPEXI sy-vline 
WA_VSDD250002_STR-HDB_ONLY_ENTITY_INCLUDED sy-vline      INTO ld_text SEPARATED BY SPACE.

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