ABAP Select data from SAP table ICLE_ICLS_SCREEN_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLE_ICLS_SCREEN_FIELDS
*  INTO TABLE @DATA(IT_ICLE_ICLS_SCREEN_FIELDS2).
*--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_ICLE_ICLS_SCREEN_FIELDS INDEX 1 INTO DATA(WA_ICLE_ICLS_SCREEN_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLE_ICLS_SCREEN_FIELDS>-CCSBRBNDL = 1.
<ICLE_ICLS_SCREEN_FIELDS>-CCTYPE = 1.
<ICLE_ICLS_SCREEN_FIELDS>-CCTYPEN = 1.
<ICLE_ICLS_SCREEN_FIELDS>-SUBTYPE = 1.
<ICLE_ICLS_SCREEN_FIELDS>-CCSUBTYPEN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLE_ICLS_SCREEN_FIELDS-CCSBRTYPE, sy-vline,
  WA_ICLE_ICLS_SCREEN_FIELDS-CCSBRTYPEN, sy-vline,
  WA_ICLE_ICLS_SCREEN_FIELDS-COUNTRY, sy-vline,
  WA_ICLE_ICLS_SCREEN_FIELDS-LANDX, sy-vline,
  WA_ICLE_ICLS_SCREEN_FIELDS-REGION, sy-vline,
  WA_ICLE_ICLS_SCREEN_FIELDS-BEZEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLE_ICLS_SCREEN_FIELDS 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_ICLE_ICLS_SCREEN_FIELDS 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_ICLE_ICLS_SCREEN_FIELDS INTO WA_ICLE_ICLS_SCREEN_FIELDS.


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

*Conversion exit ALPHA, internal->external for field BPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICLE_ICLS_SCREEN_FIELDS-BPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLE_ICLS_SCREEN_FIELDS-BPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSURED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICLE_ICLS_SCREEN_FIELDS-INSURED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLE_ICLS_SCREEN_FIELDS-INSURED.
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_ICLE_ICLS_SCREEN_FIELDS_STR, 
CCSBRBNDL TYPE STRING,
CCTYPE TYPE STRING,
CCTYPEN TYPE STRING,
SUBTYPE TYPE STRING,
CCSUBTYPEN TYPE STRING,
CCSBRTYPE TYPE STRING,
CCSBRTYPEN TYPE STRING,
COUNTRY TYPE STRING,
LANDX TYPE STRING,
REGION TYPE STRING,
BEZEI TYPE STRING,
BPARTNER TYPE STRING,
INSURED TYPE STRING,
ROLE TYPE STRING,
DESCRIP TYPE STRING,
DATELOSS TYPE STRING,
STATUS TYPE STRING,
XSUBRO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLE_ICLS_SCREEN_FIELDS_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_ICLE_ICLS_SCREEN_FIELDS_STR-CCSBRBNDL sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-CCTYPE sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-CCTYPEN sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-SUBTYPE sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-CCSUBTYPEN sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-CCSBRTYPE sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-CCSBRTYPEN sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-COUNTRY sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-LANDX sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-REGION sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-BEZEI sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-BPARTNER sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-INSURED sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-ROLE sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-DESCRIP sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-DATELOSS sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-STATUS sy-vline 
WA_ICLE_ICLS_SCREEN_FIELDS_STR-XSUBRO sy-vline      INTO ld_text SEPARATED BY SPACE.

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