ABAP Select data from SAP table RFVIMKITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVIMKITEM
*  INTO TABLE @DATA(IT_RFVIMKITEM2).
*--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_RFVIMKITEM INDEX 1 INTO DATA(WA_RFVIMKITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVIMKITEM>-BUKRS = 1.
<RFVIMKITEM>-KUNNR = 1.
<RFVIMKITEM>-E_SMIVE = 1.
<RFVIMKITEM>-SMIVE = 1.
<RFVIMKITEM>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVIMKITEM-BELNR, sy-vline,
  WA_RFVIMKITEM-BUDAT, sy-vline,
  WA_RFVIMKITEM-ZFBDT, sy-vline,
  WA_RFVIMKITEM-AUGBL, sy-vline,
  WA_RFVIMKITEM-SGTXT, sy-vline,
  WA_RFVIMKITEM-DMBTRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVIMKITEM 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_RFVIMKITEM 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_RFVIMKITEM INTO WA_RFVIMKITEM.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFVIMKITEM-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVIMKITEM-AUGBL.
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_RFVIMKITEM_STR, 
BUKRS TYPE STRING,
KUNNR TYPE STRING,
E_SMIVE TYPE STRING,
SMIVE TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUDAT TYPE STRING,
ZFBDT TYPE STRING,
AUGBL TYPE STRING,
SGTXT TYPE STRING,
DMBTRS TYPE STRING,
DMBTRH TYPE STRING,
DMSALDO TYPE STRING,
WRBTRS TYPE STRING,
WRBTRH TYPE STRING,
WRSALDO TYPE STRING,
EUROS TYPE STRING,
EUROH TYPE STRING,
EUSALDO TYPE STRING,
WAERS TYPE STRING,
BKWAERS TYPE STRING,
SWAERS TYPE STRING,
AUGDT TYPE STRING,
BUZEI TYPE STRING,
MONAT TYPE STRING,
UMSKZ TYPE STRING,
ZUONR TYPE STRING,
BLDAT TYPE STRING,
MWSKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVIMKITEM_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_RFVIMKITEM_STR-BUKRS sy-vline 
WA_RFVIMKITEM_STR-KUNNR sy-vline 
WA_RFVIMKITEM_STR-E_SMIVE sy-vline 
WA_RFVIMKITEM_STR-SMIVE sy-vline 
WA_RFVIMKITEM_STR-GJAHR sy-vline 
WA_RFVIMKITEM_STR-BELNR sy-vline 
WA_RFVIMKITEM_STR-BUDAT sy-vline 
WA_RFVIMKITEM_STR-ZFBDT sy-vline 
WA_RFVIMKITEM_STR-AUGBL sy-vline 
WA_RFVIMKITEM_STR-SGTXT sy-vline 
WA_RFVIMKITEM_STR-DMBTRS sy-vline 
WA_RFVIMKITEM_STR-DMBTRH sy-vline 
WA_RFVIMKITEM_STR-DMSALDO sy-vline 
WA_RFVIMKITEM_STR-WRBTRS sy-vline 
WA_RFVIMKITEM_STR-WRBTRH sy-vline 
WA_RFVIMKITEM_STR-WRSALDO sy-vline 
WA_RFVIMKITEM_STR-EUROS sy-vline 
WA_RFVIMKITEM_STR-EUROH sy-vline 
WA_RFVIMKITEM_STR-EUSALDO sy-vline 
WA_RFVIMKITEM_STR-WAERS sy-vline 
WA_RFVIMKITEM_STR-BKWAERS sy-vline 
WA_RFVIMKITEM_STR-SWAERS sy-vline 
WA_RFVIMKITEM_STR-AUGDT sy-vline 
WA_RFVIMKITEM_STR-BUZEI sy-vline 
WA_RFVIMKITEM_STR-MONAT sy-vline 
WA_RFVIMKITEM_STR-UMSKZ sy-vline 
WA_RFVIMKITEM_STR-ZUONR sy-vline 
WA_RFVIMKITEM_STR-BLDAT sy-vline 
WA_RFVIMKITEM_STR-MWSKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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