ABAP Select data from SAP table ICLLITITEM_DI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICLLITITEM_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 ICLLITITEM_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 ICLLITITEM_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_ICLLITITEM_DI TYPE STANDARD TABLE OF ICLLITITEM_DI,
      WA_ICLLITITEM_DI TYPE ICLLITITEM_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: <ICLLITITEM_DI> TYPE ICLLITITEM_DI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLLITITEM_DI
*  INTO TABLE @DATA(IT_ICLLITITEM_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_ICLLITITEM_DI INDEX 1 INTO DATA(WA_ICLLITITEM_DI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLLITITEM_DI>-CHIND = 1.
<ICLLITITEM_DI>-LITH_NAME = 1.
<ICLLITITEM_DI>-LITITEM_NUM = 1.
<ICLLITITEM_DI>-DATESUITFILED = 1.
<ICLLITITEM_DI>-SERVICEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLLITITEM_DI-ANSWERDUEDATE, sy-vline,
  WA_ICLLITITEM_DI-CASENUMBER, sy-vline,
  WA_ICLLITITEM_DI-EXTREF, sy-vline,
  WA_ICLLITITEM_DI-APPEAL, sy-vline,
  WA_ICLLITITEM_DI-COUNTRY, sy-vline,
  WA_ICLLITITEM_DI-REGION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLLITITEM_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_ICLLITITEM_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_ICLLITITEM_DI INTO WA_ICLLITITEM_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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ICLLITITEM_DI_STR, 
CHIND TYPE STRING,
LITH_NAME TYPE STRING,
LITITEM_NUM TYPE STRING,
DATESUITFILED TYPE STRING,
SERVICEDATE TYPE STRING,
ANSWERDUEDATE TYPE STRING,
CASENUMBER TYPE STRING,
EXTREF TYPE STRING,
APPEAL TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
COUNTY TYPE STRING,
MUNICIPALITY TYPE STRING,
JURISDICTION TYPE STRING,
COURTLEVEL TYPE STRING,
TRIALDATE TYPE STRING,
DEFENSETYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLLITITEM_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_ICLLITITEM_DI_STR-CHIND sy-vline 
WA_ICLLITITEM_DI_STR-LITH_NAME sy-vline 
WA_ICLLITITEM_DI_STR-LITITEM_NUM sy-vline 
WA_ICLLITITEM_DI_STR-DATESUITFILED sy-vline 
WA_ICLLITITEM_DI_STR-SERVICEDATE sy-vline 
WA_ICLLITITEM_DI_STR-ANSWERDUEDATE sy-vline 
WA_ICLLITITEM_DI_STR-CASENUMBER sy-vline 
WA_ICLLITITEM_DI_STR-EXTREF sy-vline 
WA_ICLLITITEM_DI_STR-APPEAL sy-vline 
WA_ICLLITITEM_DI_STR-COUNTRY sy-vline 
WA_ICLLITITEM_DI_STR-REGION sy-vline 
WA_ICLLITITEM_DI_STR-COUNTY sy-vline 
WA_ICLLITITEM_DI_STR-MUNICIPALITY sy-vline 
WA_ICLLITITEM_DI_STR-JURISDICTION sy-vline 
WA_ICLLITITEM_DI_STR-COURTLEVEL sy-vline 
WA_ICLLITITEM_DI_STR-TRIALDATE sy-vline 
WA_ICLLITITEM_DI_STR-DEFENSETYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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