ABAP Select data from SAP table ICSITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICSITEM
*  INTO TABLE @DATA(IT_ICSITEM2).
*--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_ICSITEM INDEX 1 INTO DATA(WA_ICSITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICSITEM>-CLIENT = 1.
<ICSITEM>-ACTIVE = 1.
<ICSITEM>-CLAIM = 1.
<ICSITEM>-SUBCLAIM = 1.
<ICSITEM>-ITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICSITEM-CHANGETIME, sy-vline,
  WA_ICSITEM-CHANGEDBY, sy-vline,
  WA_ICSITEM-DELETED, sy-vline,
  WA_ICSITEM-ITEMCAT, sy-vline,
  WA_ICSITEM-ITEMTYPE, sy-vline,
  WA_ICSITEM-ITEMUSE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICSITEM 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_ICSITEM 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_ICSITEM INTO WA_ICSITEM.


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

*Conversion exit TSTAM, internal->external for field CHANGETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICSITEM-CHANGETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSITEM-CHANGETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EVQUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICSITEM-EVQUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSITEM-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_ICSITEM_STR, 
CLIENT TYPE STRING,
ACTIVE TYPE STRING,
CLAIM TYPE STRING,
SUBCLAIM TYPE STRING,
ITEM TYPE STRING,
CHANGETIME TYPE STRING,
CHANGEDBY TYPE STRING,
DELETED TYPE STRING,
ITEMCAT TYPE STRING,
ITEMTYPE TYPE STRING,
ITEMUSE TYPE STRING,
COVTYPE TYPE STRING,
BENTYPE TYPE STRING,
RCOVTYPE TYPE STRING,
XWAITPERIOD TYPE STRING,
COVERAGE TYPE STRING,
SCPOSID_INT TYPE STRING,
SERVCAT TYPE STRING,
SCPOSID_EXT TYPE STRING,
STATUS TYPE STRING,
REJREASON TYPE STRING,
MODIFIED TYPE STRING,
PROCURED TYPE STRING,
CALCULATED TYPE STRING,
DESCRIPTION TYPE STRING,
DAILY TYPE STRING,
WEEKLY TYPE STRING,
MONTHLY TYPE STRING,
TOTAL TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
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,
PERDAY TYPE STRING,
DISCOUNTPERCENT TYPE STRING,
XDISCOUNTUSED TYPE STRING,
XDISCOUNTPERCENT TYPE STRING,
XDISC_2B_APPLIED TYPE STRING,
GROSNET TYPE STRING,
TXCOD TYPE STRING,
SUBCLREF TYPE STRING,
PROCUREMENT TYPE STRING,
ITEM_REF TYPE STRING,
DAMAGEDOBJ TYPE STRING,
ASSIGN_GUID TYPE STRING,
REFNO TYPE STRING,
PDREF TYPE STRING,
PDPOS TYPE STRING,
REF_LOCCAT TYPE STRING,
PTYPE TYPE STRING,
XGENEROS TYPE STRING,
ADDITIONAL_ITEM TYPE STRING,
ADDIT_ITEM_SUM TYPE STRING,
REMUN_TYPE TYPE STRING,
BENVALUE TYPE STRING,
XCREATEDMAN TYPE STRING,
CREATIONREASON TYPE STRING,
XGENLEDGERTP TYPE STRING,
PERIODICITY TYPE STRING,
ADDDUEDATE TYPE STRING,
TOTALVALUEANNUAL TYPE STRING,
PAYROLLVAR TYPE STRING,
DISBURSETYPE TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICSITEM_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_ICSITEM_STR-CLIENT sy-vline 
WA_ICSITEM_STR-ACTIVE sy-vline 
WA_ICSITEM_STR-CLAIM sy-vline 
WA_ICSITEM_STR-SUBCLAIM sy-vline 
WA_ICSITEM_STR-ITEM sy-vline 
WA_ICSITEM_STR-CHANGETIME sy-vline 
WA_ICSITEM_STR-CHANGEDBY sy-vline 
WA_ICSITEM_STR-DELETED sy-vline 
WA_ICSITEM_STR-ITEMCAT sy-vline 
WA_ICSITEM_STR-ITEMTYPE sy-vline 
WA_ICSITEM_STR-ITEMUSE sy-vline 
WA_ICSITEM_STR-COVTYPE sy-vline 
WA_ICSITEM_STR-BENTYPE sy-vline 
WA_ICSITEM_STR-RCOVTYPE sy-vline 
WA_ICSITEM_STR-XWAITPERIOD sy-vline 
WA_ICSITEM_STR-COVERAGE sy-vline 
WA_ICSITEM_STR-SCPOSID_INT sy-vline 
WA_ICSITEM_STR-SERVCAT sy-vline 
WA_ICSITEM_STR-SCPOSID_EXT sy-vline 
WA_ICSITEM_STR-STATUS sy-vline 
WA_ICSITEM_STR-REJREASON sy-vline 
WA_ICSITEM_STR-MODIFIED sy-vline 
WA_ICSITEM_STR-PROCURED sy-vline 
WA_ICSITEM_STR-CALCULATED sy-vline 
WA_ICSITEM_STR-DESCRIPTION sy-vline 
WA_ICSITEM_STR-DAILY sy-vline 
WA_ICSITEM_STR-WEEKLY sy-vline 
WA_ICSITEM_STR-MONTHLY sy-vline 
WA_ICSITEM_STR-TOTAL sy-vline 
WA_ICSITEM_STR-VALIDFROM sy-vline 
WA_ICSITEM_STR-VALIDTO sy-vline 
WA_ICSITEM_STR-STARTDATE sy-vline 
WA_ICSITEM_STR-ENDDATE sy-vline 
WA_ICSITEM_STR-DNUMBER sy-vline 
WA_ICSITEM_STR-EVALUATION sy-vline 
WA_ICSITEM_STR-EVALCAT sy-vline 
WA_ICSITEM_STR-EVALBASE sy-vline 
WA_ICSITEM_STR-EVQUANTITY sy-vline 
WA_ICSITEM_STR-EVQUANUNIT sy-vline 
WA_ICSITEM_STR-EVAMTPERUNIT sy-vline 
WA_ICSITEM_STR-EVAMOUNT sy-vline 
WA_ICSITEM_STR-EVCURR sy-vline 
WA_ICSITEM_STR-FACTOR sy-vline 
WA_ICSITEM_STR-ACV sy-vline 
WA_ICSITEM_STR-ACVPERCENT sy-vline 
WA_ICSITEM_STR-CALCEXPRESSION sy-vline 
WA_ICSITEM_STR-PERDAY sy-vline 
WA_ICSITEM_STR-DISCOUNTPERCENT sy-vline 
WA_ICSITEM_STR-XDISCOUNTUSED sy-vline 
WA_ICSITEM_STR-XDISCOUNTPERCENT sy-vline 
WA_ICSITEM_STR-XDISC_2B_APPLIED sy-vline 
WA_ICSITEM_STR-GROSNET sy-vline 
WA_ICSITEM_STR-TXCOD sy-vline 
WA_ICSITEM_STR-SUBCLREF sy-vline 
WA_ICSITEM_STR-PROCUREMENT sy-vline 
WA_ICSITEM_STR-ITEM_REF sy-vline 
WA_ICSITEM_STR-DAMAGEDOBJ sy-vline 
WA_ICSITEM_STR-ASSIGN_GUID sy-vline 
WA_ICSITEM_STR-REFNO sy-vline 
WA_ICSITEM_STR-PDREF sy-vline 
WA_ICSITEM_STR-PDPOS sy-vline 
WA_ICSITEM_STR-REF_LOCCAT sy-vline 
WA_ICSITEM_STR-PTYPE sy-vline 
WA_ICSITEM_STR-XGENEROS sy-vline 
WA_ICSITEM_STR-ADDITIONAL_ITEM sy-vline 
WA_ICSITEM_STR-ADDIT_ITEM_SUM sy-vline 
WA_ICSITEM_STR-REMUN_TYPE sy-vline 
WA_ICSITEM_STR-BENVALUE sy-vline 
WA_ICSITEM_STR-XCREATEDMAN sy-vline 
WA_ICSITEM_STR-CREATIONREASON sy-vline 
WA_ICSITEM_STR-XGENLEDGERTP sy-vline 
WA_ICSITEM_STR-PERIODICITY sy-vline 
WA_ICSITEM_STR-ADDDUEDATE sy-vline 
WA_ICSITEM_STR-TOTALVALUEANNUAL sy-vline 
WA_ICSITEM_STR-PAYROLLVAR sy-vline 
WA_ICSITEM_STR-DISBURSETYPE sy-vline 
WA_ICSITEM_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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