ABAP Select data from SAP table ICL1STNF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICL1STNF 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 ICL1STNF. 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 ICL1STNF 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_ICL1STNF TYPE STANDARD TABLE OF ICL1STNF,
      WA_ICL1STNF TYPE ICL1STNF,
      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: <ICL1STNF> TYPE ICL1STNF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICL1STNF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICL1STNF
  INTO TABLE IT_ICL1STNF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICL1STNF
*  INTO TABLE @DATA(IT_ICL1STNF2).
*--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_ICL1STNF INDEX 1 INTO DATA(WA_ICL1STNF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICL1STNF ASSIGNING <ICL1STNF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICL1STNF>-MANDT = 1.
<ICL1STNF>-INSURANCECLAIM = 1.
<ICL1STNF>-INSURANCECONTRACT = 1.
<ICL1STNF>-CHANGEDONDATETIME = 1.
<ICL1STNF>-LASTCHANGEDBYUSER = 1.

ENDLOOP.

LOOP AT IT_ICL1STNF INTO WA_ICL1STNF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICL1STNF-CREATIONDATETIME, sy-vline,
  WA_ICL1STNF-CREATEDBYUSER, sy-vline,
  WA_ICL1STNF-INSURCLMTYPE, sy-vline,
  WA_ICL1STNF-INSURCLMTYPEGENERATION, sy-vline,
  WA_ICL1STNF-INSURCLMTYPEVERS, sy-vline,
  WA_ICL1STNF-INSURCLMAUTHZNGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICL1STNF 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_ICL1STNF 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_ICL1STNF INTO WA_ICL1STNF.


*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 INSURANCECLAIM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL1STNF-INSURANCECLAIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL1STNF-INSURANCECLAIM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSURANCECONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL1STNF-INSURANCECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL1STNF-INSURANCECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSURCLMLOSSLOCADDRESSID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL1STNF-INSURCLMLOSSLOCADDRESSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL1STNF-INSURCLMLOSSLOCADDRESSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSURANCEPOLICYHOLDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICL1STNF-INSURANCEPOLICYHOLDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICL1STNF-INSURANCEPOLICYHOLDER.
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_ICL1STNF_STR, 
MANDT TYPE STRING,
INSURANCECLAIM TYPE STRING,
INSURANCECONTRACT TYPE STRING,
CHANGEDONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
INSURCLMTYPE TYPE STRING,
INSURCLMTYPEGENERATION TYPE STRING,
INSURCLMTYPEVERS TYPE STRING,
INSURCLMAUTHZNGRP TYPE STRING,
INSURCLMINCDNTTYPE TYPE STRING,
INSURCLMDATEOFLOSS TYPE STRING,
INSURCLMCAUSEOFLOSS TYPE STRING,
INSURCLMLOSSLOCADDRESSID TYPE STRING,
INSURCLMPOLICYPRODUCT TYPE STRING,
INSURCLMPOLICYPRODGENERATION TYPE STRING,
INSURCLMPOLICYPRODUCTVERSION TYPE STRING,
INSURANCEPOLICYHOLDER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICL1STNF_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_ICL1STNF_STR-MANDT sy-vline 
WA_ICL1STNF_STR-INSURANCECLAIM sy-vline 
WA_ICL1STNF_STR-INSURANCECONTRACT sy-vline 
WA_ICL1STNF_STR-CHANGEDONDATETIME sy-vline 
WA_ICL1STNF_STR-LASTCHANGEDBYUSER sy-vline 
WA_ICL1STNF_STR-CREATIONDATETIME sy-vline 
WA_ICL1STNF_STR-CREATEDBYUSER sy-vline 
WA_ICL1STNF_STR-INSURCLMTYPE sy-vline 
WA_ICL1STNF_STR-INSURCLMTYPEGENERATION sy-vline 
WA_ICL1STNF_STR-INSURCLMTYPEVERS sy-vline 
WA_ICL1STNF_STR-INSURCLMAUTHZNGRP sy-vline 
WA_ICL1STNF_STR-INSURCLMINCDNTTYPE sy-vline 
WA_ICL1STNF_STR-INSURCLMDATEOFLOSS sy-vline 
WA_ICL1STNF_STR-INSURCLMCAUSEOFLOSS sy-vline 
WA_ICL1STNF_STR-INSURCLMLOSSLOCADDRESSID sy-vline 
WA_ICL1STNF_STR-INSURCLMPOLICYPRODUCT sy-vline 
WA_ICL1STNF_STR-INSURCLMPOLICYPRODGENERATION sy-vline 
WA_ICL1STNF_STR-INSURCLMPOLICYPRODUCTVERSION sy-vline 
WA_ICL1STNF_STR-INSURANCEPOLICYHOLDER sy-vline      INTO ld_text SEPARATED BY SPACE.

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