ABAP Select data from SAP table ICLINSRDVEH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLINSRDVEH
*  INTO TABLE @DATA(IT_ICLINSRDVEH2).
*--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_ICLINSRDVEH INDEX 1 INTO DATA(WA_ICLINSRDVEH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLINSRDVEH>-MANDT = 1.
<ICLINSRDVEH>-INSURANCECONTRACT = 1.
<ICLINSRDVEH>-INSURCLMVEHICLE = 1.
<ICLINSRDVEH>-INSURCLMVEHICLEMFR = 1.
<ICLINSRDVEH>-INSURCLMVEHICLEMODEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLINSRDVEH-INSURCLMVIN, sy-vline,
  WA_ICLINSRDVEH-INSURCLMVEHICLEPLATECOUNTRY, sy-vline,
  WA_ICLINSRDVEH-INSURCLMVEHICLEPLATEREGION, sy-vline,
  WA_ICLINSRDVEH-INSURCLMVEHICLEPLATENUMBER, sy-vline,
  WA_ICLINSRDVEH-INSURCLMVEHICLEMODELYEAR, sy-vline,
  WA_ICLINSRDVEH-INSURCLMVEHICLEENGINECAPACITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLINSRDVEH 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_ICLINSRDVEH 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_ICLINSRDVEH INTO WA_ICLINSRDVEH.


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

*Conversion exit CUNIT, internal->external for field INSURCLMVEHICLEENGINECAPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICLINSRDVEH-INSURCLMVEHICLEENGINECAPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLINSRDVEH-INSURCLMVEHICLEENGINECAPUNIT.
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_ICLINSRDVEH_STR, 
MANDT TYPE STRING,
INSURANCECONTRACT TYPE STRING,
INSURCLMVEHICLE TYPE STRING,
INSURCLMVEHICLEMFR TYPE STRING,
INSURCLMVEHICLEMODEL TYPE STRING,
INSURCLMVIN TYPE STRING,
INSURCLMVEHICLEPLATECOUNTRY TYPE STRING,
INSURCLMVEHICLEPLATEREGION TYPE STRING,
INSURCLMVEHICLEPLATENUMBER TYPE STRING,
INSURCLMVEHICLEMODELYEAR TYPE STRING,
INSURCLMVEHICLEENGINECAPACITY TYPE STRING,
INSURCLMVEHICLEENGINECAPUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLINSRDVEH_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_ICLINSRDVEH_STR-MANDT sy-vline 
WA_ICLINSRDVEH_STR-INSURANCECONTRACT sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLE sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEMFR sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEMODEL sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVIN sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEPLATECOUNTRY sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEPLATEREGION sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEPLATENUMBER sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEMODELYEAR sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEENGINECAPACITY sy-vline 
WA_ICLINSRDVEH_STR-INSURCLMVEHICLEENGINECAPUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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