ABAP Select data from SAP table VRSD_OLD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VRSD_OLD
*  INTO TABLE @DATA(IT_VRSD_OLD2).
*--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_VRSD_OLD INDEX 1 INTO DATA(WA_VRSD_OLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VRSD_OLD>-OBJTYPE = 1.
<VRSD_OLD>-OBJNAME = 1.
<VRSD_OLD>-VERSNO = 1.
<VRSD_OLD>-KORRNUM = 1.
<VRSD_OLD>-AUTHOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VRSD_OLD-DATUM, sy-vline,
  WA_VRSD_OLD-ZEIT, sy-vline,
  WA_VRSD_OLD-LOEKZ, sy-vline,
  WA_VRSD_OLD-ORIGIN, sy-vline,
  WA_VRSD_OLD-VERSMODE, sy-vline,
  WA_VRSD_OLD-LASTVERSNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VRSD_OLD 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_VRSD_OLD 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_VRSD_OLD INTO WA_VRSD_OLD.


*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_VRSD_OLD_STR, 
OBJTYPE TYPE STRING,
OBJNAME TYPE STRING,
VERSNO TYPE STRING,
KORRNUM TYPE STRING,
AUTHOR TYPE STRING,
DATUM TYPE STRING,
ZEIT TYPE STRING,
LOEKZ TYPE STRING,
ORIGIN TYPE STRING,
VERSMODE TYPE STRING,
LASTVERSNO TYPE STRING,
FIRSTVERSN TYPE STRING,
RELS TYPE STRING,
MANDT TYPE STRING,
KEYLEN TYPE STRING,
TABLEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VRSD_OLD_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_VRSD_OLD_STR-OBJTYPE sy-vline 
WA_VRSD_OLD_STR-OBJNAME sy-vline 
WA_VRSD_OLD_STR-VERSNO sy-vline 
WA_VRSD_OLD_STR-KORRNUM sy-vline 
WA_VRSD_OLD_STR-AUTHOR sy-vline 
WA_VRSD_OLD_STR-DATUM sy-vline 
WA_VRSD_OLD_STR-ZEIT sy-vline 
WA_VRSD_OLD_STR-LOEKZ sy-vline 
WA_VRSD_OLD_STR-ORIGIN sy-vline 
WA_VRSD_OLD_STR-VERSMODE sy-vline 
WA_VRSD_OLD_STR-LASTVERSNO sy-vline 
WA_VRSD_OLD_STR-FIRSTVERSN sy-vline 
WA_VRSD_OLD_STR-RELS sy-vline 
WA_VRSD_OLD_STR-MANDT sy-vline 
WA_VRSD_OLD_STR-KEYLEN sy-vline 
WA_VRSD_OLD_STR-TABLEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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