ABAP Select data from SAP table ICL_CL_INPUT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL_CL_INPUT 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_CL_INPUT. 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_CL_INPUT 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_CL_INPUT TYPE STANDARD TABLE OF ICL_CL_INPUT,
      WA_ICL_CL_INPUT TYPE ICL_CL_INPUT,
      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_CL_INPUT> TYPE ICL_CL_INPUT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_CL_INPUT
*  INTO TABLE @DATA(IT_ICL_CL_INPUT2).
*--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_CL_INPUT INDEX 1 INTO DATA(WA_ICL_CL_INPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_CL_INPUT>-COMPCODE = 1.
<ICL_CL_INPUT>-PRDGRP = 1.
<ICL_CL_INPUT>-LINEOFINS = 1.
<ICL_CL_INPUT>-COVERAGE = 1.
<ICL_CL_INPUT>-REGOFFICE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_CL_INPUT-STATE, sy-vline,
  WA_ICL_CL_INPUT-REPYEAR, sy-vline,
  WA_ICL_CL_INPUT-REPMONTH, sy-vline,
  WA_ICL_CL_INPUT-CLAIM, sy-vline,
  WA_ICL_CL_INPUT-CLAIMANT, sy-vline,
  WA_ICL_CL_INPUT-LIMIT_PERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_CL_INPUT 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_CL_INPUT 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_CL_INPUT INTO WA_ICL_CL_INPUT.


*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_ICL_CL_INPUT-CLAIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_CL_INPUT-CLAIM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CLAIMANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL_CL_INPUT-CLAIMANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_CL_INPUT-CLAIMANT.
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_CL_INPUT_STR, 
COMPCODE TYPE STRING,
PRDGRP TYPE STRING,
LINEOFINS TYPE STRING,
COVERAGE TYPE STRING,
REGOFFICE TYPE STRING,
STATE TYPE STRING,
REPYEAR TYPE STRING,
REPMONTH TYPE STRING,
CLAIM TYPE STRING,
CLAIMANT TYPE STRING,
LIMIT_PERS TYPE STRING,
LIMIT_OCC TYPE STRING,
CLAIMPENDING TYPE STRING,
PAIDLOSS TYPE STRING,
FIELDRES TYPE STRING,
SUPRESAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_CL_INPUT_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_CL_INPUT_STR-COMPCODE sy-vline 
WA_ICL_CL_INPUT_STR-PRDGRP sy-vline 
WA_ICL_CL_INPUT_STR-LINEOFINS sy-vline 
WA_ICL_CL_INPUT_STR-COVERAGE sy-vline 
WA_ICL_CL_INPUT_STR-REGOFFICE sy-vline 
WA_ICL_CL_INPUT_STR-STATE sy-vline 
WA_ICL_CL_INPUT_STR-REPYEAR sy-vline 
WA_ICL_CL_INPUT_STR-REPMONTH sy-vline 
WA_ICL_CL_INPUT_STR-CLAIM sy-vline 
WA_ICL_CL_INPUT_STR-CLAIMANT sy-vline 
WA_ICL_CL_INPUT_STR-LIMIT_PERS sy-vline 
WA_ICL_CL_INPUT_STR-LIMIT_OCC sy-vline 
WA_ICL_CL_INPUT_STR-CLAIMPENDING sy-vline 
WA_ICL_CL_INPUT_STR-PAIDLOSS sy-vline 
WA_ICL_CL_INPUT_STR-FIELDRES sy-vline 
WA_ICL_CL_INPUT_STR-SUPRESAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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