ABAP Select data from SAP table ICL_ICLL12 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL_ICLL12 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_ICLL12. 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_ICLL12 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_ICLL12 TYPE STANDARD TABLE OF ICL_ICLL12,
      WA_ICL_ICLL12 TYPE ICL_ICLL12,
      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_ICLL12> TYPE ICL_ICLL12.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICL_ICLL12.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICL_ICLL12
  INTO TABLE IT_ICL_ICLL12.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL_ICLL12
*  INTO TABLE @DATA(IT_ICL_ICLL122).
*--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_ICLL12 INDEX 1 INTO DATA(WA_ICL_ICLL122).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICL_ICLL12 ASSIGNING <ICL_ICLL12>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL_ICLL12>-CLAIM = 1.
<ICL_ICLL12>-LITITEMGUID = 1.
<ICL_ICLL12>-COUNTRY = 1.
<ICL_ICLL12>-REGION = 1.
<ICL_ICLL12>-COUNTY = 1.

ENDLOOP.

LOOP AT IT_ICL_ICLL12 INTO WA_ICL_ICLL12.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL_ICLL12-MUNICIPALITY, sy-vline,
  WA_ICL_ICLL12-JURISDICTION, sy-vline,
  WA_ICL_ICLL12-COURTLEVEL, sy-vline,
  WA_ICL_ICLL12-COUNTRYN, sy-vline,
  WA_ICL_ICLL12-REGIONN, sy-vline,
  WA_ICL_ICLL12-COUNTYN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL_ICLL12 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_ICLL12 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_ICLL12 INTO WA_ICL_ICLL12.


*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_ICLL12-CLAIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL_ICLL12-CLAIM.
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_ICLL12_STR, 
CLAIM TYPE STRING,
LITITEMGUID TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
COUNTY TYPE STRING,
MUNICIPALITY TYPE STRING,
JURISDICTION TYPE STRING,
COURTLEVEL TYPE STRING,
COUNTRYN TYPE STRING,
REGIONN TYPE STRING,
COUNTYN TYPE STRING,
JURISDICTIONN TYPE STRING,
COURTLEVELN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL_ICLL12_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_ICLL12_STR-CLAIM sy-vline 
WA_ICL_ICLL12_STR-LITITEMGUID sy-vline 
WA_ICL_ICLL12_STR-COUNTRY sy-vline 
WA_ICL_ICLL12_STR-REGION sy-vline 
WA_ICL_ICLL12_STR-COUNTY sy-vline 
WA_ICL_ICLL12_STR-MUNICIPALITY sy-vline 
WA_ICL_ICLL12_STR-JURISDICTION sy-vline 
WA_ICL_ICLL12_STR-COURTLEVEL sy-vline 
WA_ICL_ICLL12_STR-COUNTRYN sy-vline 
WA_ICL_ICLL12_STR-REGIONN sy-vline 
WA_ICL_ICLL12_STR-COUNTYN sy-vline 
WA_ICL_ICLL12_STR-JURISDICTIONN sy-vline 
WA_ICL_ICLL12_STR-COURTLEVELN sy-vline      INTO ld_text SEPARATED BY SPACE.

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