ABAP Select data from SAP table ICLITEMAU_DI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLITEMAU_DI
*  INTO TABLE @DATA(IT_ICLITEMAU_DI2).
*--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_ICLITEMAU_DI INDEX 1 INTO DATA(WA_ICLITEMAU_DI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLITEMAU_DI>-DRIVER = 1.
<ICLITEMAU_DI>-MODELTY = 1.
<ICLITEMAU_DI>-VIN = 1.
<ICLITEMAU_DI>-PLATECOUNTRY = 1.
<ICLITEMAU_DI>-PLATEREGION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLITEMAU_DI-PLATENO, sy-vline,
  WA_ICLITEMAU_DI-FIRSTREG, sy-vline,
  WA_ICLITEMAU_DI-CAPACITY, sy-vline,
  WA_ICLITEMAU_DI-CAPUNIT, sy-vline,
  WA_ICLITEMAU_DI-COLOR, sy-vline,
  WA_ICLITEMAU_DI-GEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLITEMAU_DI 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_ICLITEMAU_DI 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_ICLITEMAU_DI INTO WA_ICLITEMAU_DI.


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

*Conversion exit INSPE, internal->external for field GENERALINSP
CALL FUNCTION 'CONVERSION_EXIT_INSPE_OUTPUT'
  EXPORTING
    input =                      WA_ICLITEMAU_DI-GENERALINSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLITEMAU_DI-GENERALINSP.
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_ICLITEMAU_DI_STR, 
DRIVER TYPE STRING,
MODELTY TYPE STRING,
VIN TYPE STRING,
PLATECOUNTRY TYPE STRING,
PLATEREGION TYPE STRING,
PLATENO TYPE STRING,
FIRSTREG TYPE STRING,
CAPACITY TYPE STRING,
CAPUNIT TYPE STRING,
COLOR TYPE STRING,
GEAR TYPE STRING,
INSPDATE TYPE STRING,
PURPTRIP TYPE STRING,
LEASING TYPE STRING,
XPERM TYPE STRING,
XVEHICIT TYPE STRING,
XDRIVCIT TYPE STRING,
XPARKED TYPE STRING,
XPRE TYPE STRING,
DRIVABLE TYPE STRING,
MILEAGE TYPE STRING,
MILEAGEUNIT TYPE STRING,
TREADF TYPE STRING,
TREADR TYPE STRING,
TREADUNIT TYPE STRING,
PCV TYPE STRING,
PCVCURR TYPE STRING,
OWPHREL TYPE STRING,
RECOVERDATE TYPE STRING,
MONTH_FROM TYPE STRING,
MONTH_TO TYPE STRING,
OWNERCHANGE TYPE STRING,
GENERALINSP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLITEMAU_DI_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_ICLITEMAU_DI_STR-DRIVER sy-vline 
WA_ICLITEMAU_DI_STR-MODELTY sy-vline 
WA_ICLITEMAU_DI_STR-VIN sy-vline 
WA_ICLITEMAU_DI_STR-PLATECOUNTRY sy-vline 
WA_ICLITEMAU_DI_STR-PLATEREGION sy-vline 
WA_ICLITEMAU_DI_STR-PLATENO sy-vline 
WA_ICLITEMAU_DI_STR-FIRSTREG sy-vline 
WA_ICLITEMAU_DI_STR-CAPACITY sy-vline 
WA_ICLITEMAU_DI_STR-CAPUNIT sy-vline 
WA_ICLITEMAU_DI_STR-COLOR sy-vline 
WA_ICLITEMAU_DI_STR-GEAR sy-vline 
WA_ICLITEMAU_DI_STR-INSPDATE sy-vline 
WA_ICLITEMAU_DI_STR-PURPTRIP sy-vline 
WA_ICLITEMAU_DI_STR-LEASING sy-vline 
WA_ICLITEMAU_DI_STR-XPERM sy-vline 
WA_ICLITEMAU_DI_STR-XVEHICIT sy-vline 
WA_ICLITEMAU_DI_STR-XDRIVCIT sy-vline 
WA_ICLITEMAU_DI_STR-XPARKED sy-vline 
WA_ICLITEMAU_DI_STR-XPRE sy-vline 
WA_ICLITEMAU_DI_STR-DRIVABLE sy-vline 
WA_ICLITEMAU_DI_STR-MILEAGE sy-vline 
WA_ICLITEMAU_DI_STR-MILEAGEUNIT sy-vline 
WA_ICLITEMAU_DI_STR-TREADF sy-vline 
WA_ICLITEMAU_DI_STR-TREADR sy-vline 
WA_ICLITEMAU_DI_STR-TREADUNIT sy-vline 
WA_ICLITEMAU_DI_STR-PCV sy-vline 
WA_ICLITEMAU_DI_STR-PCVCURR sy-vline 
WA_ICLITEMAU_DI_STR-OWPHREL sy-vline 
WA_ICLITEMAU_DI_STR-RECOVERDATE sy-vline 
WA_ICLITEMAU_DI_STR-MONTH_FROM sy-vline 
WA_ICLITEMAU_DI_STR-MONTH_TO sy-vline 
WA_ICLITEMAU_DI_STR-OWNERCHANGE sy-vline 
WA_ICLITEMAU_DI_STR-GENERALINSP sy-vline      INTO ld_text SEPARATED BY SPACE.

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