ABAP Select data from SAP table ICL_ITEM_EVALUATION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_ITEM_EVALUATION
*  INTO TABLE @DATA(IT_ICL_ITEM_EVALUATION2).
*--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_ICL_ITEM_EVALUATION INDEX 1 INTO DATA(WA_ICL_ITEM_EVALUATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_ITEM_EVALUATION>-DNUMBER = 1.
<ICL_ITEM_EVALUATION>-EVALUATION = 1.
<ICL_ITEM_EVALUATION>-EVALCAT = 1.
<ICL_ITEM_EVALUATION>-EVALBASE = 1.
<ICL_ITEM_EVALUATION>-EVQUANTITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_ITEM_EVALUATION-EVQUANUNIT, sy-vline,
  WA_ICL_ITEM_EVALUATION-EVAMTPERUNIT, sy-vline,
  WA_ICL_ITEM_EVALUATION-EVAMOUNT, sy-vline,
  WA_ICL_ITEM_EVALUATION-EVCURR, sy-vline,
  WA_ICL_ITEM_EVALUATION-FACTOR, sy-vline,
  WA_ICL_ITEM_EVALUATION-ACV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_ITEM_EVALUATION 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_ICL_ITEM_EVALUATION 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_ICL_ITEM_EVALUATION INTO WA_ICL_ITEM_EVALUATION.


*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 EVQUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICL_ITEM_EVALUATION-EVQUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_ITEM_EVALUATION-EVQUANUNIT.
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_ICL_ITEM_EVALUATION_STR, 
DNUMBER TYPE STRING,
EVALUATION TYPE STRING,
EVALCAT TYPE STRING,
EVALBASE TYPE STRING,
EVQUANTITY TYPE STRING,
EVQUANUNIT TYPE STRING,
EVAMTPERUNIT TYPE STRING,
EVAMOUNT TYPE STRING,
EVCURR TYPE STRING,
FACTOR TYPE STRING,
ACV TYPE STRING,
ACVPERCENT TYPE STRING,
CALCEXPRESSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_ITEM_EVALUATION_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_ICL_ITEM_EVALUATION_STR-DNUMBER sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVALUATION sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVALCAT sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVALBASE sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVQUANTITY sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVQUANUNIT sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVAMTPERUNIT sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVAMOUNT sy-vline 
WA_ICL_ITEM_EVALUATION_STR-EVCURR sy-vline 
WA_ICL_ITEM_EVALUATION_STR-FACTOR sy-vline 
WA_ICL_ITEM_EVALUATION_STR-ACV sy-vline 
WA_ICL_ITEM_EVALUATION_STR-ACVPERCENT sy-vline 
WA_ICL_ITEM_EVALUATION_STR-CALCEXPRESSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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