ABAP Select data from SAP table V_WBEW into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_WBEW
*  INTO TABLE @DATA(IT_V_WBEW2).
*--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_V_WBEW INDEX 1 INTO DATA(WA_V_WBEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_WBEW>-MANDT = 1.
<V_WBEW>-MATNR = 1.
<V_WBEW>-BWKEY = 1.
<V_WBEW>-BWTAR = 1.
<V_WBEW>-MEINH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_WBEW-WSPRE, sy-vline,
  WA_V_WBEW-WSPEI, sy-vline,
  WA_V_WBEW-VMWPR, sy-vline,
  WA_V_WBEW-VMWPE, sy-vline,
  WA_V_WBEW-VJWPR, sy-vline,
  WA_V_WBEW-VJWPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_WBEW 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_V_WBEW 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_V_WBEW INTO WA_V_WBEW.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_V_WBEW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_WBEW-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_WBEW-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_WBEW-LFGJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_V_WBEW-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_WBEW-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_WBEW-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_WBEW-MEINS.
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_V_WBEW_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
MEINH TYPE STRING,
WSPRE TYPE STRING,
WSPEI TYPE STRING,
VMWPR TYPE STRING,
VMWPE TYPE STRING,
VJWPR TYPE STRING,
VJWPE TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
STPRV TYPE STRING,
LAEPR TYPE STRING,
ZKPRS TYPE STRING,
ZKDAT TYPE STRING,
ATINN TYPE STRING,
LBKUM TYPE STRING,
SALK3 TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
PEINH TYPE STRING,
BKLAS TYPE STRING,
BWTTY TYPE STRING,
MAKTX TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
MEINS TYPE STRING,
MSEHT TYPE STRING,
MSEHL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_WBEW_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_V_WBEW_STR-MANDT sy-vline 
WA_V_WBEW_STR-MATNR sy-vline 
WA_V_WBEW_STR-BWKEY sy-vline 
WA_V_WBEW_STR-BWTAR sy-vline 
WA_V_WBEW_STR-MEINH sy-vline 
WA_V_WBEW_STR-WSPRE sy-vline 
WA_V_WBEW_STR-WSPEI sy-vline 
WA_V_WBEW_STR-VMWPR sy-vline 
WA_V_WBEW_STR-VMWPE sy-vline 
WA_V_WBEW_STR-VJWPR sy-vline 
WA_V_WBEW_STR-VJWPE sy-vline 
WA_V_WBEW_STR-LFGJA sy-vline 
WA_V_WBEW_STR-LFMON sy-vline 
WA_V_WBEW_STR-STPRV sy-vline 
WA_V_WBEW_STR-LAEPR sy-vline 
WA_V_WBEW_STR-ZKPRS sy-vline 
WA_V_WBEW_STR-ZKDAT sy-vline 
WA_V_WBEW_STR-ATINN sy-vline 
WA_V_WBEW_STR-LBKUM sy-vline 
WA_V_WBEW_STR-SALK3 sy-vline 
WA_V_WBEW_STR-VPRSV sy-vline 
WA_V_WBEW_STR-VERPR sy-vline 
WA_V_WBEW_STR-STPRS sy-vline 
WA_V_WBEW_STR-PEINH sy-vline 
WA_V_WBEW_STR-BKLAS sy-vline 
WA_V_WBEW_STR-BWTTY sy-vline 
WA_V_WBEW_STR-MAKTX sy-vline 
WA_V_WBEW_STR-WAERS sy-vline 
WA_V_WBEW_STR-BUKRS sy-vline 
WA_V_WBEW_STR-MEINS sy-vline 
WA_V_WBEW_STR-MSEHT sy-vline 
WA_V_WBEW_STR-MSEHL sy-vline      INTO ld_text SEPARATED BY SPACE.

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