ABAP Select data from SAP table VRS_DISP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VRS_DISP
*  INTO TABLE @DATA(IT_VRS_DISP2).
*--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_VRS_DISP INDEX 1 INTO DATA(WA_VRS_DISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VRS_DISP>-SID = 1.
<VRS_DISP>-RFCDEST = 1.
<VRS_DISP>-SAPSYS = 1.
<VRS_DISP>-STATUS = 1.
<VRS_DISP>-VERSNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VRS_DISP-VERSNUM, sy-vline,
  WA_VRS_DISP-COMPARE, sy-vline,
  WA_VRS_DISP-CATEGORY, sy-vline,
  WA_VRS_DISP-FLAG, sy-vline,
  WA_VRS_DISP-SAP, sy-vline,
  WA_VRS_DISP-REL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VRS_DISP 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_VRS_DISP 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_VRS_DISP INTO WA_VRS_DISP.


*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_VRS_DISP_STR, 
SID TYPE STRING,
RFCDEST TYPE STRING,
SAPSYS TYPE STRING,
STATUS TYPE STRING,
VERSNO TYPE STRING,
VERSNUM TYPE STRING,
COMPARE TYPE STRING,
CATEGORY TYPE STRING,
FLAG TYPE STRING,
SAP TYPE STRING,
REL TYPE STRING,
ARCHIVED TYPE STRING,
KORRNO TYPE STRING,
KORRTEXT TYPE STRING,
PROJECT TYPE STRING,
DATE TYPE STRING,
TIME TYPE STRING,
USR TYPE STRING,
NOTE_NUMM TYPE STRING,
CM TYPE STRING,
CI TYPE STRING,
TCI TYPE STRING,
SP TYPE STRING,
CELLSTYLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VRS_DISP_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_VRS_DISP_STR-SID sy-vline 
WA_VRS_DISP_STR-RFCDEST sy-vline 
WA_VRS_DISP_STR-SAPSYS sy-vline 
WA_VRS_DISP_STR-STATUS sy-vline 
WA_VRS_DISP_STR-VERSNO sy-vline 
WA_VRS_DISP_STR-VERSNUM sy-vline 
WA_VRS_DISP_STR-COMPARE sy-vline 
WA_VRS_DISP_STR-CATEGORY sy-vline 
WA_VRS_DISP_STR-FLAG sy-vline 
WA_VRS_DISP_STR-SAP sy-vline 
WA_VRS_DISP_STR-REL sy-vline 
WA_VRS_DISP_STR-ARCHIVED sy-vline 
WA_VRS_DISP_STR-KORRNO sy-vline 
WA_VRS_DISP_STR-KORRTEXT sy-vline 
WA_VRS_DISP_STR-PROJECT sy-vline 
WA_VRS_DISP_STR-DATE sy-vline 
WA_VRS_DISP_STR-TIME sy-vline 
WA_VRS_DISP_STR-USR sy-vline 
WA_VRS_DISP_STR-NOTE_NUMM sy-vline 
WA_VRS_DISP_STR-CM sy-vline 
WA_VRS_DISP_STR-CI sy-vline 
WA_VRS_DISP_STR-TCI sy-vline 
WA_VRS_DISP_STR-SP sy-vline 
WA_VRS_DISP_STR-CELLSTYLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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