ABAP Select data from SAP table VEPOD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEPOD
*  INTO TABLE @DATA(IT_VEPOD2).
*--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_VEPOD INDEX 1 INTO DATA(WA_VEPOD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEPOD>-UPDKZ = 1.
<VEPOD>-SELKZ = 1.
<VEPOD>-BRGEW = 1.
<VEPOD>-VOLUM = 1.
<VEPOD>-GEWEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEPOD-VOLEH, sy-vline,
  WA_VEPOD-VHART, sy-vline,
  WA_VEPOD-VEBEZ, sy-vline,
  WA_VEPOD-AENDB, sy-vline,
  WA_VEPOD-VBELN_VBFA, sy-vline,
  WA_VEPOD-HELP_TABIX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEPOD 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_VEPOD 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_VEPOD INTO WA_VEPOD.


*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 CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN_VBFA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-VBELN_VBFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-VBELN_VBFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-CUSTORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-CUSTORD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-PURORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-PURORD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DLVRY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-DLVRY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-DLVRY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEPOD-TKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEPOD-TKNUM.
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_VEPOD_STR, 
UPDKZ TYPE STRING,
SELKZ TYPE STRING,
BRGEW TYPE STRING,
VOLUM TYPE STRING,
GEWEI TYPE STRING,
VOLEH TYPE STRING,
VHART TYPE STRING,
VEBEZ TYPE STRING,
AENDB TYPE STRING,
VBELN_VBFA TYPE STRING,
HELP_TABIX TYPE STRING,
STATUS TYPE STRING,
SERPFL TYPE STRING,
BDMNG TYPE STRING,
UMLGO TYPE STRING,
MTPOS TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
KZPGN TYPE STRING,
ZEUGN TYPE STRING,
CUSTORD TYPE STRING,
CUSTORDIT TYPE STRING,
PURORD TYPE STRING,
PURORDIT TYPE STRING,
DLVRY TYPE STRING,
DLVRYIT TYPE STRING,
TKNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEPOD_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_VEPOD_STR-UPDKZ sy-vline 
WA_VEPOD_STR-SELKZ sy-vline 
WA_VEPOD_STR-BRGEW sy-vline 
WA_VEPOD_STR-VOLUM sy-vline 
WA_VEPOD_STR-GEWEI sy-vline 
WA_VEPOD_STR-VOLEH sy-vline 
WA_VEPOD_STR-VHART sy-vline 
WA_VEPOD_STR-VEBEZ sy-vline 
WA_VEPOD_STR-AENDB sy-vline 
WA_VEPOD_STR-VBELN_VBFA sy-vline 
WA_VEPOD_STR-HELP_TABIX sy-vline 
WA_VEPOD_STR-STATUS sy-vline 
WA_VEPOD_STR-SERPFL sy-vline 
WA_VEPOD_STR-BDMNG sy-vline 
WA_VEPOD_STR-UMLGO sy-vline 
WA_VEPOD_STR-MTPOS sy-vline 
WA_VEPOD_STR-LGNUM sy-vline 
WA_VEPOD_STR-LGTYP sy-vline 
WA_VEPOD_STR-LGPLA sy-vline 
WA_VEPOD_STR-KZPGN sy-vline 
WA_VEPOD_STR-ZEUGN sy-vline 
WA_VEPOD_STR-CUSTORD sy-vline 
WA_VEPOD_STR-CUSTORDIT sy-vline 
WA_VEPOD_STR-PURORD sy-vline 
WA_VEPOD_STR-PURORDIT sy-vline 
WA_VEPOD_STR-DLVRY sy-vline 
WA_VEPOD_STR-DLVRYIT sy-vline 
WA_VEPOD_STR-TKNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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