ABAP Select data from SAP table /RPM/ITEM_D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /RPM/ITEM_D 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 /RPM/ITEM_D. 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 /RPM/ITEM_D 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_/RPM/ITEM_D TYPE STANDARD TABLE OF /RPM/ITEM_D,
      WA_/RPM/ITEM_D TYPE /RPM/ITEM_D,
      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: </RPM/ITEM_D> TYPE /RPM/ITEM_D.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /RPM/ITEM_D
  INTO TABLE IT_/RPM/ITEM_D.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /RPM/ITEM_D
*  INTO TABLE @DATA(IT_/RPM/ITEM_D2).
*--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_/RPM/ITEM_D INDEX 1 INTO DATA(WA_/RPM/ITEM_D2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/RPM/ITEM_D ASSIGNING </RPM/ITEM_D>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</RPM/ITEM_D>-CLIENT = 1.
</RPM/ITEM_D>-GUID = 1.
</RPM/ITEM_D>-EXTERNAL_ID = 1.
</RPM/ITEM_D>-PORTFOLIO_GUID = 1.
</RPM/ITEM_D>-PARENT_GUID = 1.

ENDLOOP.

LOOP AT IT_/RPM/ITEM_D INTO WA_/RPM/ITEM_D.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/RPM/ITEM_D-CATEGORY, sy-vline,
  WA_/RPM/ITEM_D-SUBCATEGORY, sy-vline,
  WA_/RPM/ITEM_D-PHASE, sy-vline,
  WA_/RPM/ITEM_D-PTYPE, sy-vline,
  WA_/RPM/ITEM_D-TTYPE, sy-vline,
  WA_/RPM/ITEM_D-RISKA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/RPM/ITEM_D 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_/RPM/ITEM_D 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_/RPM/ITEM_D INTO WA_/RPM/ITEM_D.


*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 TSTPS, internal->external for field RPM_CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/RPM/ITEM_D-RPM_CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/RPM/ITEM_D-RPM_CHANGED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/RPM/ITEM_D-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/RPM/ITEM_D-UNIT.
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_/RPM/ITEM_D_STR, 
CLIENT TYPE STRING,
GUID TYPE STRING,
EXTERNAL_ID TYPE STRING,
PORTFOLIO_GUID TYPE STRING,
PARENT_GUID TYPE STRING,
CATEGORY TYPE STRING,
SUBCATEGORY TYPE STRING,
PHASE TYPE STRING,
PTYPE TYPE STRING,
TTYPE TYPE STRING,
RISKA TYPE STRING,
PROBT TYPE STRING,
PROBC TYPE STRING,
HEADC TYPE STRING,
COSTD TYPE STRING,
COSTL TYPE STRING,
NPV TYPE STRING,
CURRENCY TYPE STRING,
LOCATION TYPE STRING,
GEOGRAPHY TYPE STRING,
RPM_CHANGED_ON TYPE STRING,
PERIODTYPE TYPE STRING,
UNIT TYPE STRING,
FORECAST_START TYPE STRING,
PLANNED_START TYPE STRING,
ACTUAL_START TYPE STRING,
FORECAST_FINISH TYPE STRING,
PLANNED_FINISH TYPE STRING,
ACTUAL_FINISH TYPE STRING,
ESCALATION TYPE STRING,
ITEM_TYPE TYPE STRING,
PORTFL_ITEM_GUID TYPE STRING,
ECV TYPE STRING,
PRIORITY_GROUP TYPE STRING,
CHANGED_BY TYPE STRING,
VERSION_ITEM TYPE STRING,
ITEM_CLASS TYPE STRING,
MASTER_ITEM_GUID TYPE STRING,
STATUS TYPE STRING,
CAP_PERIODTYPE TYPE STRING,
INITIATIVE_GUID TYPE STRING,
DISCOUNT_RATE TYPE STRING,
ACT_DPCPT_GUID TYPE STRING,
FRCST_BGT_TOTAL TYPE STRING,
FRCST_BGTANNUAL TYPE STRING,
FRCST_COSTTOTAL TYPE STRING,
FRCST_COST_YTD TYPE STRING,
TEMPLATE_GUID TYPE STRING,
IS_GLOBAL TYPE STRING,
EA_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/RPM/ITEM_D_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_/RPM/ITEM_D_STR-CLIENT sy-vline 
WA_/RPM/ITEM_D_STR-GUID sy-vline 
WA_/RPM/ITEM_D_STR-EXTERNAL_ID sy-vline 
WA_/RPM/ITEM_D_STR-PORTFOLIO_GUID sy-vline 
WA_/RPM/ITEM_D_STR-PARENT_GUID sy-vline 
WA_/RPM/ITEM_D_STR-CATEGORY sy-vline 
WA_/RPM/ITEM_D_STR-SUBCATEGORY sy-vline 
WA_/RPM/ITEM_D_STR-PHASE sy-vline 
WA_/RPM/ITEM_D_STR-PTYPE sy-vline 
WA_/RPM/ITEM_D_STR-TTYPE sy-vline 
WA_/RPM/ITEM_D_STR-RISKA sy-vline 
WA_/RPM/ITEM_D_STR-PROBT sy-vline 
WA_/RPM/ITEM_D_STR-PROBC sy-vline 
WA_/RPM/ITEM_D_STR-HEADC sy-vline 
WA_/RPM/ITEM_D_STR-COSTD sy-vline 
WA_/RPM/ITEM_D_STR-COSTL sy-vline 
WA_/RPM/ITEM_D_STR-NPV sy-vline 
WA_/RPM/ITEM_D_STR-CURRENCY sy-vline 
WA_/RPM/ITEM_D_STR-LOCATION sy-vline 
WA_/RPM/ITEM_D_STR-GEOGRAPHY sy-vline 
WA_/RPM/ITEM_D_STR-RPM_CHANGED_ON sy-vline 
WA_/RPM/ITEM_D_STR-PERIODTYPE sy-vline 
WA_/RPM/ITEM_D_STR-UNIT sy-vline 
WA_/RPM/ITEM_D_STR-FORECAST_START sy-vline 
WA_/RPM/ITEM_D_STR-PLANNED_START sy-vline 
WA_/RPM/ITEM_D_STR-ACTUAL_START sy-vline 
WA_/RPM/ITEM_D_STR-FORECAST_FINISH sy-vline 
WA_/RPM/ITEM_D_STR-PLANNED_FINISH sy-vline 
WA_/RPM/ITEM_D_STR-ACTUAL_FINISH sy-vline 
WA_/RPM/ITEM_D_STR-ESCALATION sy-vline 
WA_/RPM/ITEM_D_STR-ITEM_TYPE sy-vline 
WA_/RPM/ITEM_D_STR-PORTFL_ITEM_GUID sy-vline 
WA_/RPM/ITEM_D_STR-ECV sy-vline 
WA_/RPM/ITEM_D_STR-PRIORITY_GROUP sy-vline 
WA_/RPM/ITEM_D_STR-CHANGED_BY sy-vline 
WA_/RPM/ITEM_D_STR-VERSION_ITEM sy-vline 
WA_/RPM/ITEM_D_STR-ITEM_CLASS sy-vline 
WA_/RPM/ITEM_D_STR-MASTER_ITEM_GUID sy-vline 
WA_/RPM/ITEM_D_STR-STATUS sy-vline 
WA_/RPM/ITEM_D_STR-CAP_PERIODTYPE sy-vline 
WA_/RPM/ITEM_D_STR-INITIATIVE_GUID sy-vline 
WA_/RPM/ITEM_D_STR-DISCOUNT_RATE sy-vline 
WA_/RPM/ITEM_D_STR-ACT_DPCPT_GUID sy-vline 
WA_/RPM/ITEM_D_STR-FRCST_BGT_TOTAL sy-vline 
WA_/RPM/ITEM_D_STR-FRCST_BGTANNUAL sy-vline 
WA_/RPM/ITEM_D_STR-FRCST_COSTTOTAL sy-vline 
WA_/RPM/ITEM_D_STR-FRCST_COST_YTD sy-vline 
WA_/RPM/ITEM_D_STR-TEMPLATE_GUID sy-vline 
WA_/RPM/ITEM_D_STR-IS_GLOBAL sy-vline 
WA_/RPM/ITEM_D_STR-EA_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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