ABAP Select data from SAP table IRTLPROMNITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRTLPROMNITEM
*  INTO TABLE @DATA(IT_IRTLPROMNITEM2).
*--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_IRTLPROMNITEM INDEX 1 INTO DATA(WA_IRTLPROMNITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRTLPROMNITEM>-MANDT = 1.
<IRTLPROMNITEM>-RETAILPROMOTION = 1.
<IRTLPROMNITEM>-PRODUCT = 1.
<IRTLPROMNITEM>-SALESQUANTITYUNIT = 1.
<IRTLPROMNITEM>-RETAILPROMOTIONITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRTLPROMNITEM-PROMNPLNITMCURRENCY, sy-vline,
  WA_IRTLPROMNITEM-PROMNPLNITMSALESPRICE, sy-vline,
  WA_IRTLPROMNITEM-RTLPROMOTIONITEMSALESPRICEQTY, sy-vline,
  WA_IRTLPROMNITEM-RETAILPROMNDISCOUNTAMOUNT, sy-vline,
  WA_IRTLPROMNITEM-QUANTITYUNIT, sy-vline,
  WA_IRTLPROMNITEM-RETAILPROMOTIONDISCOUNTPERCENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRTLPROMNITEM 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_IRTLPROMNITEM 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_IRTLPROMNITEM INTO WA_IRTLPROMNITEM.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ALLOCATIONTABLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRTLPROMNITEM-ALLOCATIONTABLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRTLPROMNITEM-ALLOCATIONTABLE.
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_IRTLPROMNITEM_STR, 
MANDT TYPE STRING,
RETAILPROMOTION TYPE STRING,
PRODUCT TYPE STRING,
SALESQUANTITYUNIT TYPE STRING,
RETAILPROMOTIONITEM TYPE STRING,
PROMNPLNITMCURRENCY TYPE STRING,
PROMNPLNITMSALESPRICE TYPE STRING,
RTLPROMOTIONITEMSALESPRICEQTY TYPE STRING,
RETAILPROMNDISCOUNTAMOUNT TYPE STRING,
QUANTITYUNIT TYPE STRING,
RETAILPROMOTIONDISCOUNTPERCENT TYPE STRING,
RETAILPROMOTIONDISCOUNTSTATUS TYPE STRING,
PROMNPLNITMSALESQUANTITY TYPE STRING,
PROMNPLNITMPURCHASECURRENCY TYPE STRING,
PROMNPLNITMPURCHASEPRICE TYPE STRING,
PRCWITHOUTPRCCALCISACTIVE TYPE STRING,
NMBROFRTLPROMNITMPRICEACTVTN TYPE STRING,
RETAILPROMNITEMBLOCKDATE TYPE STRING,
RETAILPROMNBLOCKINGREASON TYPE STRING,
RETAILPROMOTIONSALESFROMDATE TYPE STRING,
RETAILPROMOTIONSALESTODATE TYPE STRING,
PROMNPLNITMTOTALQTYSALESPRICE TYPE STRING,
PROMNPLNITMTOTALQTYPURPRICE TYPE STRING,
CROSSPLANTCONFIGURABLEPRODUCT TYPE STRING,
PRODUCTGROUP TYPE STRING,
ALLOCATIONTABLE TYPE STRING,
ALLOCATIONTABLEITEM TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRTLPROMNITEM_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_IRTLPROMNITEM_STR-MANDT sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMOTION sy-vline 
WA_IRTLPROMNITEM_STR-PRODUCT sy-vline 
WA_IRTLPROMNITEM_STR-SALESQUANTITYUNIT sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMOTIONITEM sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMCURRENCY sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMSALESPRICE sy-vline 
WA_IRTLPROMNITEM_STR-RTLPROMOTIONITEMSALESPRICEQTY sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMNDISCOUNTAMOUNT sy-vline 
WA_IRTLPROMNITEM_STR-QUANTITYUNIT sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMOTIONDISCOUNTPERCENT sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMOTIONDISCOUNTSTATUS sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMSALESQUANTITY sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMPURCHASECURRENCY sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMPURCHASEPRICE sy-vline 
WA_IRTLPROMNITEM_STR-PRCWITHOUTPRCCALCISACTIVE sy-vline 
WA_IRTLPROMNITEM_STR-NMBROFRTLPROMNITMPRICEACTVTN sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMNITEMBLOCKDATE sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMNBLOCKINGREASON sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMOTIONSALESFROMDATE sy-vline 
WA_IRTLPROMNITEM_STR-RETAILPROMOTIONSALESTODATE sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMTOTALQTYSALESPRICE sy-vline 
WA_IRTLPROMNITEM_STR-PROMNPLNITMTOTALQTYPURPRICE sy-vline 
WA_IRTLPROMNITEM_STR-CROSSPLANTCONFIGURABLEPRODUCT sy-vline 
WA_IRTLPROMNITEM_STR-PRODUCTGROUP sy-vline 
WA_IRTLPROMNITEM_STR-ALLOCATIONTABLE sy-vline 
WA_IRTLPROMNITEM_STR-ALLOCATIONTABLEITEM sy-vline 
WA_IRTLPROMNITEM_STR-CREATIONDATE sy-vline 
WA_IRTLPROMNITEM_STR-CREATEDBYUSER sy-vline 
WA_IRTLPROMNITEM_STR-LASTCHANGEDATE sy-vline 
WA_IRTLPROMNITEM_STR-LASTCHANGEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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