ABAP Select data from SAP table V_QBEWH_MD 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_QBEWH_MD 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_QBEWH_MD. 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_QBEWH_MD 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_QBEWH_MD TYPE STANDARD TABLE OF V_QBEWH_MD,
      WA_V_QBEWH_MD TYPE V_QBEWH_MD,
      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_QBEWH_MD> TYPE V_QBEWH_MD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_QBEWH_MD
*  INTO TABLE @DATA(IT_V_QBEWH_MD2).
*--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_QBEWH_MD INDEX 1 INTO DATA(WA_V_QBEWH_MD2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_QBEWH_MD-PSPNR, sy-vline,
  WA_V_QBEWH_MD-LFGJA, sy-vline,
  WA_V_QBEWH_MD-LFMON, sy-vline,
  WA_V_QBEWH_MD-VPRSV, sy-vline,
  WA_V_QBEWH_MD-VERPR, sy-vline,
  WA_V_QBEWH_MD-STPRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_QBEWH_MD 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_QBEWH_MD 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_QBEWH_MD INTO WA_V_QBEWH_MD.


*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_QBEWH_MD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_QBEWH_MD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_V_QBEWH_MD-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_QBEWH_MD-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_QBEWH_MD-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_QBEWH_MD-LFGJA.
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_QBEWH_MD_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
SOBKZ TYPE STRING,
PSPNR TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
PEINH TYPE STRING,
BKLAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_QBEWH_MD_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_QBEWH_MD_STR-MANDT sy-vline 
WA_V_QBEWH_MD_STR-MATNR sy-vline 
WA_V_QBEWH_MD_STR-BWKEY sy-vline 
WA_V_QBEWH_MD_STR-BWTAR sy-vline 
WA_V_QBEWH_MD_STR-SOBKZ sy-vline 
WA_V_QBEWH_MD_STR-PSPNR sy-vline 
WA_V_QBEWH_MD_STR-LFGJA sy-vline 
WA_V_QBEWH_MD_STR-LFMON sy-vline 
WA_V_QBEWH_MD_STR-VPRSV sy-vline 
WA_V_QBEWH_MD_STR-VERPR sy-vline 
WA_V_QBEWH_MD_STR-STPRS sy-vline 
WA_V_QBEWH_MD_STR-PEINH sy-vline 
WA_V_QBEWH_MD_STR-BKLAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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