ABAP Select data from SAP table VBSSSK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBSSSK
*  INTO TABLE @DATA(IT_VBSSSK2).
*--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_VBSSSK INDEX 1 INTO DATA(WA_VBSSSK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBSSSK>-MANDT = 1.
<VBSSSK>-SAMMG = 1.
<VBSSSK>-VBELN = 1.
<VBSSSK>-SORTF = 1.
<VBSSSK>-SMART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBSSSK-ERNAM, sy-vline,
  WA_VBSSSK-ERDAT, sy-vline,
  WA_VBSSSK-UZEIT, sy-vline,
  WA_VBSSSK-VBNUM, sy-vline,
  WA_VBSSSK-ERNUM, sy-vline,
  WA_VBSSSK-BRGEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBSSSK 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_VBSSSK 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_VBSSSK INTO WA_VBSSSK.


*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_VBSSSK-SAMMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBSSSK-SAMMG.
WRITE:/ 'New Value:', ld_input.

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

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

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

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