ABAP Select data from SAP table V_OBEW_MD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_OBEW_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_OBEW_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_OBEW_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_OBEW_MD TYPE STANDARD TABLE OF V_OBEW_MD,
      WA_V_OBEW_MD TYPE V_OBEW_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_OBEW_MD> TYPE V_OBEW_MD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_OBEW_MD
*  INTO TABLE @DATA(IT_V_OBEW_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_OBEW_MD INDEX 1 INTO DATA(WA_V_OBEW_MD2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_OBEW_MD-LIFNR, sy-vline,
  WA_V_OBEW_MD-VPRSV, sy-vline,
  WA_V_OBEW_MD-VERPR, sy-vline,
  WA_V_OBEW_MD-STPRS, sy-vline,
  WA_V_OBEW_MD-PEINH, sy-vline,
  WA_V_OBEW_MD-BKLAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_OBEW_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_OBEW_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_OBEW_MD INTO WA_V_OBEW_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_OBEW_MD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_OBEW_MD-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit GJAHR, internal->external for field PDATV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_OBEW_MD-PDATV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_OBEW_MD-PDATV.
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_OBEW_MD_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
PEINH TYPE STRING,
BKLAS TYPE STRING,
VMVPR TYPE STRING,
VMVER TYPE STRING,
VMSTP TYPE STRING,
VMPEI TYPE STRING,
VMBKL TYPE STRING,
VJVPR TYPE STRING,
VJVER TYPE STRING,
VJSTP TYPE STRING,
VJPEI TYPE STRING,
VJBKL TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
BWTTY TYPE STRING,
STPRV TYPE STRING,
LAEPR TYPE STRING,
ZKPRS TYPE STRING,
ZKDAT TYPE STRING,
ZPLPR TYPE STRING,
KALKZ TYPE STRING,
KALKL TYPE STRING,
KALKV TYPE STRING,
KALN1 TYPE STRING,
BWVA1 TYPE STRING,
BWVA2 TYPE STRING,
BWVA3 TYPE STRING,
VERS1 TYPE STRING,
VERS2 TYPE STRING,
VERS3 TYPE STRING,
HRKFT TYPE STRING,
KOSGR TYPE STRING,
PPRDZ TYPE STRING,
PPRDL TYPE STRING,
PPRDV TYPE STRING,
PDATZ TYPE STRING,
PDATL TYPE STRING,
PDATV TYPE STRING,
EKALR TYPE STRING,
VPLPR TYPE STRING,
MLMAA TYPE STRING,
MLAST TYPE STRING,
LPLPR TYPE STRING,
HKMAT TYPE STRING,
BWSPA TYPE STRING,
LPLPX TYPE STRING,
VPLPX TYPE STRING,
FPLPX TYPE STRING,
LBWST TYPE STRING,
VBWST TYPE STRING,
FBWST TYPE STRING,
MBRUE TYPE STRING,
OKLAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_OBEW_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_OBEW_MD_STR-MANDT sy-vline 
WA_V_OBEW_MD_STR-MATNR sy-vline 
WA_V_OBEW_MD_STR-BWKEY sy-vline 
WA_V_OBEW_MD_STR-BWTAR sy-vline 
WA_V_OBEW_MD_STR-SOBKZ sy-vline 
WA_V_OBEW_MD_STR-LIFNR sy-vline 
WA_V_OBEW_MD_STR-VPRSV sy-vline 
WA_V_OBEW_MD_STR-VERPR sy-vline 
WA_V_OBEW_MD_STR-STPRS sy-vline 
WA_V_OBEW_MD_STR-PEINH sy-vline 
WA_V_OBEW_MD_STR-BKLAS sy-vline 
WA_V_OBEW_MD_STR-VMVPR sy-vline 
WA_V_OBEW_MD_STR-VMVER sy-vline 
WA_V_OBEW_MD_STR-VMSTP sy-vline 
WA_V_OBEW_MD_STR-VMPEI sy-vline 
WA_V_OBEW_MD_STR-VMBKL sy-vline 
WA_V_OBEW_MD_STR-VJVPR sy-vline 
WA_V_OBEW_MD_STR-VJVER sy-vline 
WA_V_OBEW_MD_STR-VJSTP sy-vline 
WA_V_OBEW_MD_STR-VJPEI sy-vline 
WA_V_OBEW_MD_STR-VJBKL sy-vline 
WA_V_OBEW_MD_STR-LFGJA sy-vline 
WA_V_OBEW_MD_STR-LFMON sy-vline 
WA_V_OBEW_MD_STR-BWTTY sy-vline 
WA_V_OBEW_MD_STR-STPRV sy-vline 
WA_V_OBEW_MD_STR-LAEPR sy-vline 
WA_V_OBEW_MD_STR-ZKPRS sy-vline 
WA_V_OBEW_MD_STR-ZKDAT sy-vline 
WA_V_OBEW_MD_STR-ZPLPR sy-vline 
WA_V_OBEW_MD_STR-KALKZ sy-vline 
WA_V_OBEW_MD_STR-KALKL sy-vline 
WA_V_OBEW_MD_STR-KALKV sy-vline 
WA_V_OBEW_MD_STR-KALN1 sy-vline 
WA_V_OBEW_MD_STR-BWVA1 sy-vline 
WA_V_OBEW_MD_STR-BWVA2 sy-vline 
WA_V_OBEW_MD_STR-BWVA3 sy-vline 
WA_V_OBEW_MD_STR-VERS1 sy-vline 
WA_V_OBEW_MD_STR-VERS2 sy-vline 
WA_V_OBEW_MD_STR-VERS3 sy-vline 
WA_V_OBEW_MD_STR-HRKFT sy-vline 
WA_V_OBEW_MD_STR-KOSGR sy-vline 
WA_V_OBEW_MD_STR-PPRDZ sy-vline 
WA_V_OBEW_MD_STR-PPRDL sy-vline 
WA_V_OBEW_MD_STR-PPRDV sy-vline 
WA_V_OBEW_MD_STR-PDATZ sy-vline 
WA_V_OBEW_MD_STR-PDATL sy-vline 
WA_V_OBEW_MD_STR-PDATV sy-vline 
WA_V_OBEW_MD_STR-EKALR sy-vline 
WA_V_OBEW_MD_STR-VPLPR sy-vline 
WA_V_OBEW_MD_STR-MLMAA sy-vline 
WA_V_OBEW_MD_STR-MLAST sy-vline 
WA_V_OBEW_MD_STR-LPLPR sy-vline 
WA_V_OBEW_MD_STR-HKMAT sy-vline 
WA_V_OBEW_MD_STR-BWSPA sy-vline 
WA_V_OBEW_MD_STR-LPLPX sy-vline 
WA_V_OBEW_MD_STR-VPLPX sy-vline 
WA_V_OBEW_MD_STR-FPLPX sy-vline 
WA_V_OBEW_MD_STR-LBWST sy-vline 
WA_V_OBEW_MD_STR-VBWST sy-vline 
WA_V_OBEW_MD_STR-FBWST sy-vline 
WA_V_OBEW_MD_STR-MBRUE sy-vline 
WA_V_OBEW_MD_STR-OKLAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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