ABAP Select data from SAP table PRCT_ITEM_RET_COM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRCT_ITEM_RET_COM
*  INTO TABLE @DATA(IT_PRCT_ITEM_RET_COM2).
*--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_PRCT_ITEM_RET_COM INDEX 1 INTO DATA(WA_PRCT_ITEM_RET_COM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRCT_ITEM_RET_COM>-KPOSN = 1.
<PRCT_ITEM_RET_COM>-CURRENCY = 1.
<PRCT_ITEM_RET_COM>-NETWR = 1.
<PRCT_ITEM_RET_COM>-NETPR = 1.
<PRCT_ITEM_RET_COM>-NETPR_PRIC_UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRCT_ITEM_RET_COM-NETPR_UOM, sy-vline,
  WA_PRCT_ITEM_RET_COM-MWSBP, sy-vline,
  WA_PRCT_ITEM_RET_COM-BRTWR, sy-vline,
  WA_PRCT_ITEM_RET_COM-FREIGHT, sy-vline,
  WA_PRCT_ITEM_RET_COM-NETWR_FREIGHTLESS, sy-vline,
  WA_PRCT_ITEM_RET_COM-SKFBP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRCT_ITEM_RET_COM 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_PRCT_ITEM_RET_COM 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_PRCT_ITEM_RET_COM INTO WA_PRCT_ITEM_RET_COM.


*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 CUNIT, internal->external for field NETPR_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRCT_ITEM_RET_COM-NETPR_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRCT_ITEM_RET_COM-NETPR_UOM.
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_PRCT_ITEM_RET_COM_STR, 
KPOSN TYPE STRING,
CURRENCY TYPE STRING,
NETWR TYPE STRING,
NETPR TYPE STRING,
NETPR_PRIC_UNIT TYPE STRING,
NETPR_UOM TYPE STRING,
MWSBP TYPE STRING,
BRTWR TYPE STRING,
FREIGHT TYPE STRING,
NETWR_FREIGHTLESS TYPE STRING,
SKFBP TYPE STRING,
SKONTO TYPE STRING,
KZWI1 TYPE STRING,
KZWI2 TYPE STRING,
KZWI3 TYPE STRING,
KZWI4 TYPE STRING,
KZWI5 TYPE STRING,
KZWI6 TYPE STRING,
WAVWR TYPE STRING,
GRWRT TYPE STRING,
COND_FUNCTION TYPE STRING,
DYNAMIC_RETURN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRCT_ITEM_RET_COM_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_PRCT_ITEM_RET_COM_STR-KPOSN sy-vline 
WA_PRCT_ITEM_RET_COM_STR-CURRENCY sy-vline 
WA_PRCT_ITEM_RET_COM_STR-NETWR sy-vline 
WA_PRCT_ITEM_RET_COM_STR-NETPR sy-vline 
WA_PRCT_ITEM_RET_COM_STR-NETPR_PRIC_UNIT sy-vline 
WA_PRCT_ITEM_RET_COM_STR-NETPR_UOM sy-vline 
WA_PRCT_ITEM_RET_COM_STR-MWSBP sy-vline 
WA_PRCT_ITEM_RET_COM_STR-BRTWR sy-vline 
WA_PRCT_ITEM_RET_COM_STR-FREIGHT sy-vline 
WA_PRCT_ITEM_RET_COM_STR-NETWR_FREIGHTLESS sy-vline 
WA_PRCT_ITEM_RET_COM_STR-SKFBP sy-vline 
WA_PRCT_ITEM_RET_COM_STR-SKONTO sy-vline 
WA_PRCT_ITEM_RET_COM_STR-KZWI1 sy-vline 
WA_PRCT_ITEM_RET_COM_STR-KZWI2 sy-vline 
WA_PRCT_ITEM_RET_COM_STR-KZWI3 sy-vline 
WA_PRCT_ITEM_RET_COM_STR-KZWI4 sy-vline 
WA_PRCT_ITEM_RET_COM_STR-KZWI5 sy-vline 
WA_PRCT_ITEM_RET_COM_STR-KZWI6 sy-vline 
WA_PRCT_ITEM_RET_COM_STR-WAVWR sy-vline 
WA_PRCT_ITEM_RET_COM_STR-GRWRT sy-vline 
WA_PRCT_ITEM_RET_COM_STR-COND_FUNCTION sy-vline 
WA_PRCT_ITEM_RET_COM_STR-DYNAMIC_RETURN sy-vline      INTO ld_text SEPARATED BY SPACE.

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