ABAP Select data from SAP table PRCS_RESULT_MULTI_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRCS_RESULT_MULTI_ITEM
*  INTO TABLE @DATA(IT_PRCS_RESULT_MULTI_ITEM2).
*--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_PRCS_RESULT_MULTI_ITEM INDEX 1 INTO DATA(WA_PRCS_RESULT_MULTI_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRCS_RESULT_MULTI_ITEM>-BELNR = 1.
<PRCS_RESULT_MULTI_ITEM>-KNUMV = 1.
<PRCS_RESULT_MULTI_ITEM>-KPOSN = 1.
<PRCS_RESULT_MULTI_ITEM>-MGAME = 1.
<PRCS_RESULT_MULTI_ITEM>-VRKME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRCS_RESULT_MULTI_ITEM-KUNNR, sy-vline,
  WA_PRCS_RESULT_MULTI_ITEM-MATNR, sy-vline,
  WA_PRCS_RESULT_MULTI_ITEM-WAERK, sy-vline,
  WA_PRCS_RESULT_MULTI_ITEM-NETWR, sy-vline,
  WA_PRCS_RESULT_MULTI_ITEM-NETPR, sy-vline,
  WA_PRCS_RESULT_MULTI_ITEM-KPEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRCS_RESULT_MULTI_ITEM 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_PRCS_RESULT_MULTI_ITEM 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_PRCS_RESULT_MULTI_ITEM INTO WA_PRCS_RESULT_MULTI_ITEM.


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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PRCS_RESULT_MULTI_ITEM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRCS_RESULT_MULTI_ITEM-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRCS_RESULT_MULTI_ITEM-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRCS_RESULT_MULTI_ITEM-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_PRCS_RESULT_MULTI_ITEM_STR, 
BELNR TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
MGAME TYPE STRING,
VRKME TYPE STRING,
KUNNR TYPE STRING,
MATNR TYPE STRING,
WAERK TYPE STRING,
NETWR TYPE STRING,
NETPR TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
EFFWR TYPE STRING,
MWSBP TYPE STRING,
KZWI1 TYPE STRING,
KZWI2 TYPE STRING,
KZWI3 TYPE STRING,
KZWI4 TYPE STRING,
KZWI5 TYPE STRING,
KZWI6 TYPE STRING,
BONBA TYPE STRING,
GRWRT TYPE STRING,
PREVA TYPE STRING,
CMPRE TYPE STRING,
WRBTR TYPE STRING,
WAVWR TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
PRSOK TYPE STRING,
FXMSG TYPE STRING,
IX_KOMV_F TYPE STRING,
IX_KOMV_T TYPE STRING,
SCALEDET_STATUS TYPE STRING,
BRTWR TYPE STRING,
DUMMY_PRCS_RESULT_MULTI_ITEM_E TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRCS_RESULT_MULTI_ITEM_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_PRCS_RESULT_MULTI_ITEM_STR-BELNR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KNUMV sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KPOSN sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-MGAME sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-VRKME sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KUNNR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-MATNR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-WAERK sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-NETWR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-NETPR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KPEIN sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KMEIN sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-EFFWR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-MWSBP sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KZWI1 sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KZWI2 sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KZWI3 sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KZWI4 sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KZWI5 sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-KZWI6 sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-BONBA sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-GRWRT sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-PREVA sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-CMPRE sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-WRBTR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-WAVWR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-BRGEW sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-NTGEW sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-GEWEI sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-VOLUM sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-VOLEH sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-PRSOK sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-FXMSG sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-IX_KOMV_F sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-IX_KOMV_T sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-SCALEDET_STATUS sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-BRTWR sy-vline 
WA_PRCS_RESULT_MULTI_ITEM_STR-DUMMY_PRCS_RESULT_MULTI_ITEM_E sy-vline      INTO ld_text SEPARATED BY SPACE.

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