ABAP Select data from SAP table IUILPRDDISC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IUILPRDDISC
*  INTO TABLE @DATA(IT_IUILPRDDISC2).
*--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_IUILPRDDISC INDEX 1 INTO DATA(WA_IUILPRDDISC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IUILPRDDISC>-MANDT = 1.
<IUILPRDDISC>-UTILITIESPRODUCT = 1.
<IUILPRDDISC>-CHARACTERISTIC = 1.
<IUILPRDDISC>-UTILSSEMANTICSNAME1 = 1.
<IUILPRDDISC>-UTILSSEMANTICSNAME2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IUILPRDDISC-VALUEPOSITIONNUMBER, sy-vline,
  WA_IUILPRDDISC-UTILSDISCOUNTID, sy-vline,
  WA_IUILPRDDISC-DIVISION, sy-vline,
  WA_IUILPRDDISC-UTILITIESBILLINGCLASS, sy-vline,
  WA_IUILPRDDISC-UTILSDISCOUNTTEXT, sy-vline,
  WA_IUILPRDDISC-UTILSDISCOUNTCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IUILPRDDISC 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_IUILPRDDISC 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_IUILPRDDISC INTO WA_IUILPRDDISC.


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

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

*Conversion exit CUNIT, internal->external for field UTILSTIMESLICEDURATIONUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IUILPRDDISC-UTILSTIMESLICEDURATIONUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IUILPRDDISC-UTILSTIMESLICEDURATIONUOM.
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_IUILPRDDISC_STR, 
MANDT TYPE STRING,
UTILITIESPRODUCT TYPE STRING,
CHARACTERISTIC TYPE STRING,
UTILSSEMANTICSNAME1 TYPE STRING,
UTILSSEMANTICSNAME2 TYPE STRING,
VALUEPOSITIONNUMBER TYPE STRING,
UTILSDISCOUNTID TYPE STRING,
DIVISION TYPE STRING,
UTILITIESBILLINGCLASS TYPE STRING,
UTILSDISCOUNTTEXT TYPE STRING,
UTILSDISCOUNTCATEGORY TYPE STRING,
UTILSDISCOUNTTYPE TYPE STRING,
UTILSMEASUREMENTUNIT TYPE STRING,
UTILSDISCOUNTINPERCENT TYPE STRING,
UTILSDISCOUNTDEMAND TYPE STRING,
UTILSDISCOUNTQUANTITY TYPE STRING,
UTILSDISCOUNTAMOUNT TYPE STRING,
UTILSDISCOUNTCURRENCY TYPE STRING,
UTILSDISCOUNTFACTOR TYPE STRING,
UTILSTIMESLICEDURATIONFROM TYPE STRING,
UTILSTIMESLICEDURATIONTO TYPE STRING,
UTILSTIMESLICEDURATIONUOM TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTGROUP TYPE STRING,
PRODUCTAUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IUILPRDDISC_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_IUILPRDDISC_STR-MANDT sy-vline 
WA_IUILPRDDISC_STR-UTILITIESPRODUCT sy-vline 
WA_IUILPRDDISC_STR-CHARACTERISTIC sy-vline 
WA_IUILPRDDISC_STR-UTILSSEMANTICSNAME1 sy-vline 
WA_IUILPRDDISC_STR-UTILSSEMANTICSNAME2 sy-vline 
WA_IUILPRDDISC_STR-VALUEPOSITIONNUMBER sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTID sy-vline 
WA_IUILPRDDISC_STR-DIVISION sy-vline 
WA_IUILPRDDISC_STR-UTILITIESBILLINGCLASS sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTTEXT sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTCATEGORY sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTTYPE sy-vline 
WA_IUILPRDDISC_STR-UTILSMEASUREMENTUNIT sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTINPERCENT sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTDEMAND sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTQUANTITY sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTAMOUNT sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTCURRENCY sy-vline 
WA_IUILPRDDISC_STR-UTILSDISCOUNTFACTOR sy-vline 
WA_IUILPRDDISC_STR-UTILSTIMESLICEDURATIONFROM sy-vline 
WA_IUILPRDDISC_STR-UTILSTIMESLICEDURATIONTO sy-vline 
WA_IUILPRDDISC_STR-UTILSTIMESLICEDURATIONUOM sy-vline 
WA_IUILPRDDISC_STR-PRODUCTTYPE sy-vline 
WA_IUILPRDDISC_STR-PRODUCTGROUP sy-vline 
WA_IUILPRDDISC_STR-PRODUCTAUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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