ABAP Select data from SAP table ILTSTARTT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ILTSTARTT
*  INTO TABLE @DATA(IT_ILTSTARTT2).
*--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_ILTSTARTT INDEX 1 INTO DATA(WA_ILTSTARTT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ILTSTARTT>-MANDT = 1.
<ILTSTARTT>-LEGALTRANSACTIONUUID = 1.
<ILTSTARTT>-LEGALTRANSACTIONTASK = 1.
<ILTSTARTT>-WORKFLOWTASKINTERNALID = 1.
<ILTSTARTT>-LGLTRANSWRKFLWMODINSTCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ILTSTARTT-LEGALTRANSACTIONWRKFLWSQNC, sy-vline,
  WA_ILTSTARTT-LGLCNTNTMTASKGROUPNAME, sy-vline,
  WA_ILTSTARTT-WORKFLOWTASKPROCESSORROLE, sy-vline,
  WA_ILTSTARTT-LEGALTRANSACTIONTASKSTATUS, sy-vline,
  WA_ILTSTARTT-LEGALTRANSACTIONTASKCRTEDBYUSR, sy-vline,
  WA_ILTSTARTT-LEGALTRANSACTIONTASKCURUSR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ILTSTARTT 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_ILTSTARTT 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_ILTSTARTT INTO WA_ILTSTARTT.


*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 LEGALTRANSACTIONTASK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ILTSTARTT-LEGALTRANSACTIONTASK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ILTSTARTT-LEGALTRANSACTIONTASK.
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_ILTSTARTT_STR, 
MANDT TYPE STRING,
LEGALTRANSACTIONUUID TYPE STRING,
LEGALTRANSACTIONTASK TYPE STRING,
WORKFLOWTASKINTERNALID TYPE STRING,
LGLTRANSWRKFLWMODINSTCE TYPE STRING,
LEGALTRANSACTIONWRKFLWSQNC TYPE STRING,
LGLCNTNTMTASKGROUPNAME TYPE STRING,
WORKFLOWTASKPROCESSORROLE TYPE STRING,
LEGALTRANSACTIONTASKSTATUS TYPE STRING,
LEGALTRANSACTIONTASKCRTEDBYUSR TYPE STRING,
LEGALTRANSACTIONTASKCURUSR TYPE STRING,
LGLCNTNTMTASKDEFINITION TYPE STRING,
LEGALTRANSACTIONTASKTYPE TYPE STRING,
LGLTRANSTSKCRTNUTCDTETME TYPE STRING,
LGLCNTNTMTASKCOMPLTNUTCDTETME TYPE STRING,
LEGALTRANSACTIONTASKTYPENAME TYPE STRING,
LEGALTRANSACTIONTASKSTATUSNAME TYPE STRING,
WORKFLOWTASK TYPE STRING,
TOPLEVELWORKFLOWTASKDEFINITION TYPE STRING,
WORKFLOWTASKDEFINITIONVERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ILTSTARTT_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_ILTSTARTT_STR-MANDT sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONUUID sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASK sy-vline 
WA_ILTSTARTT_STR-WORKFLOWTASKINTERNALID sy-vline 
WA_ILTSTARTT_STR-LGLTRANSWRKFLWMODINSTCE sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONWRKFLWSQNC sy-vline 
WA_ILTSTARTT_STR-LGLCNTNTMTASKGROUPNAME sy-vline 
WA_ILTSTARTT_STR-WORKFLOWTASKPROCESSORROLE sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASKSTATUS sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASKCRTEDBYUSR sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASKCURUSR sy-vline 
WA_ILTSTARTT_STR-LGLCNTNTMTASKDEFINITION sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASKTYPE sy-vline 
WA_ILTSTARTT_STR-LGLTRANSTSKCRTNUTCDTETME sy-vline 
WA_ILTSTARTT_STR-LGLCNTNTMTASKCOMPLTNUTCDTETME sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASKTYPENAME sy-vline 
WA_ILTSTARTT_STR-LEGALTRANSACTIONTASKSTATUSNAME sy-vline 
WA_ILTSTARTT_STR-WORKFLOWTASK sy-vline 
WA_ILTSTARTT_STR-TOPLEVELWORKFLOWTASKDEFINITION sy-vline 
WA_ILTSTARTT_STR-WORKFLOWTASKDEFINITIONVERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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