ABAP Select data from SAP table VBSKVB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VBSKVB 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 VBSKVB. 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 VBSKVB 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_VBSKVB TYPE STANDARD TABLE OF VBSKVB,
      WA_VBSKVB TYPE VBSKVB,
      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: <VBSKVB> TYPE VBSKVB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBSKVB
*  INTO TABLE @DATA(IT_VBSKVB2).
*--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_VBSKVB INDEX 1 INTO DATA(WA_VBSKVB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBSKVB>-MANDT = 1.
<VBSKVB>-SAMMG = 1.
<VBSKVB>-SMART = 1.
<VBSKVB>-ERNAM = 1.
<VBSKVB>-ERDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBSKVB-UZEIT, sy-vline,
  WA_VBSKVB-VBNUM, sy-vline,
  WA_VBSKVB-ERNUM, sy-vline,
  WA_VBSKVB-BRGEW, sy-vline,
  WA_VBSKVB-GEWEI, sy-vline,
  WA_VBSKVB-VOLUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBSKVB 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_VBSKVB 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_VBSKVB INTO WA_VBSKVB.


*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 SAMMG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBSKVB-SAMMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBSKVB-SAMMG.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VBSKVB-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBSKVB-VOLEH.
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_VBSKVB_STR, 
MANDT TYPE STRING,
SAMMG TYPE STRING,
SMART TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
UZEIT TYPE STRING,
VBNUM TYPE STRING,
ERNUM TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
VSTEL TYPE STRING,
VTEXT TYPE STRING,
MAXZT TYPE STRING,
PROGRAMM TYPE STRING,
SELSET TYPE STRING,
BATCH TYPE STRING,
ANZLP TYPE STRING,
ANZGP TYPE STRING,
ANZGI TYPE STRING,
KWPRO TYPE STRING,
KAPTP TYPE STRING,
LGNUM TYPE STRING,
BEDAT TYPE STRING,
WRAST TYPE STRING,
COLLECTIVERUN_UUID TYPE STRING,
UPDKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBSKVB_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_VBSKVB_STR-MANDT sy-vline 
WA_VBSKVB_STR-SAMMG sy-vline 
WA_VBSKVB_STR-SMART sy-vline 
WA_VBSKVB_STR-ERNAM sy-vline 
WA_VBSKVB_STR-ERDAT sy-vline 
WA_VBSKVB_STR-UZEIT sy-vline 
WA_VBSKVB_STR-VBNUM sy-vline 
WA_VBSKVB_STR-ERNUM sy-vline 
WA_VBSKVB_STR-BRGEW sy-vline 
WA_VBSKVB_STR-GEWEI sy-vline 
WA_VBSKVB_STR-VOLUM sy-vline 
WA_VBSKVB_STR-VOLEH sy-vline 
WA_VBSKVB_STR-VSTEL sy-vline 
WA_VBSKVB_STR-VTEXT sy-vline 
WA_VBSKVB_STR-MAXZT sy-vline 
WA_VBSKVB_STR-PROGRAMM sy-vline 
WA_VBSKVB_STR-SELSET sy-vline 
WA_VBSKVB_STR-BATCH sy-vline 
WA_VBSKVB_STR-ANZLP sy-vline 
WA_VBSKVB_STR-ANZGP sy-vline 
WA_VBSKVB_STR-ANZGI sy-vline 
WA_VBSKVB_STR-KWPRO sy-vline 
WA_VBSKVB_STR-KAPTP sy-vline 
WA_VBSKVB_STR-LGNUM sy-vline 
WA_VBSKVB_STR-BEDAT sy-vline 
WA_VBSKVB_STR-WRAST sy-vline 
WA_VBSKVB_STR-COLLECTIVERUN_UUID sy-vline 
WA_VBSKVB_STR-UPDKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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