ABAP Select data from SAP table VEPSOUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEPSOUT
*  INTO TABLE @DATA(IT_VEPSOUT2).
*--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_VEPSOUT INDEX 1 INTO DATA(WA_VEPSOUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEPSOUT>-EPSPCLORI = 1.
<VEPSOUT>-EPSPCLNUM = 1.
<VEPSOUT>-EPSRECADR = 1.
<VEPSOUT>-EPSPCLEXT = 1.
<VEPSOUT>-EPSSUBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEPSOUT-EPSCOMMENT, sy-vline,
  WA_VEPSOUT-EPSFILSIZ, sy-vline,
  WA_VEPSOUT-EPSCREDAT, sy-vline,
  WA_VEPSOUT-EPSCRETIM, sy-vline,
  WA_VEPSOUT-EPSMODDAT, sy-vline,
  WA_VEPSOUT-EPSMODTIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEPSOUT 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_VEPSOUT 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_VEPSOUT INTO WA_VEPSOUT.


*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_VEPSOUT_STR, 
EPSPCLORI TYPE STRING,
EPSPCLNUM TYPE STRING,
EPSRECADR TYPE STRING,
EPSPCLEXT TYPE STRING,
EPSSUBJECT TYPE STRING,
EPSCOMMENT TYPE STRING,
EPSFILSIZ TYPE STRING,
EPSCREDAT TYPE STRING,
EPSCRETIM TYPE STRING,
EPSMODDAT TYPE STRING,
EPSMODTIM TYPE STRING,
EPSEXPDAT TYPE STRING,
EPSPCLOWN TYPE STRING,
EPSRELFLG TYPE STRING,
EPSDELDAT TYPE STRING,
EPSDELTIM TYPE STRING,
EPSDELRC TYPE STRING,
EPSORDDAT TYPE STRING,
EPSORDTIM TYPE STRING,
EPSRSPUSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEPSOUT_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_VEPSOUT_STR-EPSPCLORI sy-vline 
WA_VEPSOUT_STR-EPSPCLNUM sy-vline 
WA_VEPSOUT_STR-EPSRECADR sy-vline 
WA_VEPSOUT_STR-EPSPCLEXT sy-vline 
WA_VEPSOUT_STR-EPSSUBJECT sy-vline 
WA_VEPSOUT_STR-EPSCOMMENT sy-vline 
WA_VEPSOUT_STR-EPSFILSIZ sy-vline 
WA_VEPSOUT_STR-EPSCREDAT sy-vline 
WA_VEPSOUT_STR-EPSCRETIM sy-vline 
WA_VEPSOUT_STR-EPSMODDAT sy-vline 
WA_VEPSOUT_STR-EPSMODTIM sy-vline 
WA_VEPSOUT_STR-EPSEXPDAT sy-vline 
WA_VEPSOUT_STR-EPSPCLOWN sy-vline 
WA_VEPSOUT_STR-EPSRELFLG sy-vline 
WA_VEPSOUT_STR-EPSDELDAT sy-vline 
WA_VEPSOUT_STR-EPSDELTIM sy-vline 
WA_VEPSOUT_STR-EPSDELRC sy-vline 
WA_VEPSOUT_STR-EPSORDDAT sy-vline 
WA_VEPSOUT_STR-EPSORDTIM sy-vline 
WA_VEPSOUT_STR-EPSRSPUSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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