ABAP Select data from SAP table KBED01_UPD_VS2VS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KBED01_UPD_VS2VS 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 KBED01_UPD_VS2VS. 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 KBED01_UPD_VS2VS 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_KBED01_UPD_VS2VS TYPE STANDARD TABLE OF KBED01_UPD_VS2VS,
      WA_KBED01_UPD_VS2VS TYPE KBED01_UPD_VS2VS,
      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: <KBED01_UPD_VS2VS> TYPE KBED01_UPD_VS2VS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KBED01_UPD_VS2VS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KBED01_UPD_VS2VS
  INTO TABLE IT_KBED01_UPD_VS2VS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KBED01_UPD_VS2VS
*  INTO TABLE @DATA(IT_KBED01_UPD_VS2VS2).
*--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_KBED01_UPD_VS2VS INDEX 1 INTO DATA(WA_KBED01_UPD_VS2VS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KBED01_UPD_VS2VS ASSIGNING <KBED01_UPD_VS2VS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KBED01_UPD_VS2VS>-MANDT = 1.
<KBED01_UPD_VS2VS>-BEDID = 1.
<KBED01_UPD_VS2VS>-BEDZL = 1.
<KBED01_UPD_VS2VS>-CANUM = 1.
<KBED01_UPD_VS2VS>-AUFPL = 1.

ENDLOOP.

LOOP AT IT_KBED01_UPD_VS2VS INTO WA_KBED01_UPD_VS2VS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KBED01_UPD_VS2VS-APLZL, sy-vline,
  WA_KBED01_UPD_VS2VS-PLNUM, sy-vline,
  WA_KBED01_UPD_VS2VS-SAFNR, sy-vline,
  WA_KBED01_UPD_VS2VS-CANUMF, sy-vline,
  WA_KBED01_UPD_VS2VS-BEDIDORG, sy-vline,
  WA_KBED01_UPD_VS2VS-BEDZLORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KBED01_UPD_VS2VS 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_KBED01_UPD_VS2VS 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_KBED01_UPD_VS2VS INTO WA_KBED01_UPD_VS2VS.


*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 ALPHA, internal->external for field PLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KBED01_UPD_VS2VS-PLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBED01_UPD_VS2VS-PLNUM.
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_KBED01_UPD_VS2VS_STR, 
MANDT TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
CANUM TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
PLNUM TYPE STRING,
SAFNR TYPE STRING,
CANUMF TYPE STRING,
BEDIDORG TYPE STRING,
BEDZLORG TYPE STRING,
CANUMORG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KBED01_UPD_VS2VS_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_KBED01_UPD_VS2VS_STR-MANDT sy-vline 
WA_KBED01_UPD_VS2VS_STR-BEDID sy-vline 
WA_KBED01_UPD_VS2VS_STR-BEDZL sy-vline 
WA_KBED01_UPD_VS2VS_STR-CANUM sy-vline 
WA_KBED01_UPD_VS2VS_STR-AUFPL sy-vline 
WA_KBED01_UPD_VS2VS_STR-APLZL sy-vline 
WA_KBED01_UPD_VS2VS_STR-PLNUM sy-vline 
WA_KBED01_UPD_VS2VS_STR-SAFNR sy-vline 
WA_KBED01_UPD_VS2VS_STR-CANUMF sy-vline 
WA_KBED01_UPD_VS2VS_STR-BEDIDORG sy-vline 
WA_KBED01_UPD_VS2VS_STR-BEDZLORG sy-vline 
WA_KBED01_UPD_VS2VS_STR-CANUMORG sy-vline      INTO ld_text SEPARATED BY SPACE.

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