ABAP Select data from SAP table COM_IDENT_VERS_KEY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COM_IDENT_VERS_KEY
*  INTO TABLE @DATA(IT_COM_IDENT_VERS_KEY2).
*--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_COM_IDENT_VERS_KEY INDEX 1 INTO DATA(WA_COM_IDENT_VERS_KEY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COM_IDENT_VERS_KEY>-PLNTY = 1.
<COM_IDENT_VERS_KEY>-PLNNR = 1.
<COM_IDENT_VERS_KEY>-PLNAL = 1.
<COM_IDENT_VERS_KEY>-VERSN = 1.
<COM_IDENT_VERS_KEY>-PLNFL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COM_IDENT_VERS_KEY-PLNKN, sy-vline,
  WA_COM_IDENT_VERS_KEY-ZUONR, sy-vline,
  WA_COM_IDENT_VERS_KEY-IDENT, sy-vline,
  WA_COM_IDENT_VERS_KEY-STLTY, sy-vline,
  WA_COM_IDENT_VERS_KEY-STLNR, sy-vline,
  WA_COM_IDENT_VERS_KEY-STLAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COM_IDENT_VERS_KEY 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_COM_IDENT_VERS_KEY 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_COM_IDENT_VERS_KEY INTO WA_COM_IDENT_VERS_KEY.


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

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

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

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

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_COM_IDENT_VERS_KEY-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COM_IDENT_VERS_KEY-STLNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field STLNR_W
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_COM_IDENT_VERS_KEY-STLNR_W
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COM_IDENT_VERS_KEY-STLNR_W.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STLAL_W
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COM_IDENT_VERS_KEY-STLAL_W
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COM_IDENT_VERS_KEY-STLAL_W.
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_COM_IDENT_VERS_KEY_STR, 
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
VERSN TYPE STRING,
PLNFL TYPE STRING,
PLNKN TYPE STRING,
ZUONR TYPE STRING,
IDENT TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
STLAL TYPE STRING,
BOM_VERSN TYPE STRING,
STLKN TYPE STRING,
IDENT_ITM TYPE STRING,
KANTE TYPE STRING,
STLTY_W TYPE STRING,
STLNR_W TYPE STRING,
STLAL_W TYPE STRING,
BOM_VERSN_W TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COM_IDENT_VERS_KEY_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_COM_IDENT_VERS_KEY_STR-PLNTY sy-vline 
WA_COM_IDENT_VERS_KEY_STR-PLNNR sy-vline 
WA_COM_IDENT_VERS_KEY_STR-PLNAL sy-vline 
WA_COM_IDENT_VERS_KEY_STR-VERSN sy-vline 
WA_COM_IDENT_VERS_KEY_STR-PLNFL sy-vline 
WA_COM_IDENT_VERS_KEY_STR-PLNKN sy-vline 
WA_COM_IDENT_VERS_KEY_STR-ZUONR sy-vline 
WA_COM_IDENT_VERS_KEY_STR-IDENT sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLTY sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLNR sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLAL sy-vline 
WA_COM_IDENT_VERS_KEY_STR-BOM_VERSN sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLKN sy-vline 
WA_COM_IDENT_VERS_KEY_STR-IDENT_ITM sy-vline 
WA_COM_IDENT_VERS_KEY_STR-KANTE sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLTY_W sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLNR_W sy-vline 
WA_COM_IDENT_VERS_KEY_STR-STLAL_W sy-vline 
WA_COM_IDENT_VERS_KEY_STR-BOM_VERSN_W sy-vline      INTO ld_text SEPARATED BY SPACE.

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