ABAP Select data from SAP table ICSPOLOAU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICSPOLOAU
*  INTO TABLE @DATA(IT_ICSPOLOAU2).
*--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_ICSPOLOAU INDEX 1 INTO DATA(WA_ICSPOLOAU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICSPOLOAU>-CLIENT = 1.
<ICSPOLOAU>-ACTIVE = 1.
<ICSPOLOAU>-CLAIM = 1.
<ICSPOLOAU>-POLVNR = 1.
<ICSPOLOAU>-INSUREDOBJ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICSPOLOAU-CHANGETIME, sy-vline,
  WA_ICSPOLOAU-CHANGEDBY, sy-vline,
  WA_ICSPOLOAU-DELETED, sy-vline,
  WA_ICSPOLOAU-PROPMAKE, sy-vline,
  WA_ICSPOLOAU-PROPMODEL, sy-vline,
  WA_ICSPOLOAU-MODELTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICSPOLOAU 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_ICSPOLOAU 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_ICSPOLOAU INTO WA_ICSPOLOAU.


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

*Conversion exit TSTAM, internal->external for field CHANGETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_ICSPOLOAU-CHANGETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSPOLOAU-CHANGETIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CAPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICSPOLOAU-CAPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSPOLOAU-CAPUNIT.
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_ICSPOLOAU_STR, 
CLIENT TYPE STRING,
ACTIVE TYPE STRING,
CLAIM TYPE STRING,
POLVNR TYPE STRING,
INSUREDOBJ TYPE STRING,
CHANGETIME TYPE STRING,
CHANGEDBY TYPE STRING,
DELETED TYPE STRING,
PROPMAKE TYPE STRING,
PROPMODEL TYPE STRING,
MODELTY TYPE STRING,
VIN TYPE STRING,
PLATECOUNTRY TYPE STRING,
PLATEREGION TYPE STRING,
PLATENO TYPE STRING,
CONSTYEAR TYPE STRING,
CAPACITY TYPE STRING,
CAPUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICSPOLOAU_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_ICSPOLOAU_STR-CLIENT sy-vline 
WA_ICSPOLOAU_STR-ACTIVE sy-vline 
WA_ICSPOLOAU_STR-CLAIM sy-vline 
WA_ICSPOLOAU_STR-POLVNR sy-vline 
WA_ICSPOLOAU_STR-INSUREDOBJ sy-vline 
WA_ICSPOLOAU_STR-CHANGETIME sy-vline 
WA_ICSPOLOAU_STR-CHANGEDBY sy-vline 
WA_ICSPOLOAU_STR-DELETED sy-vline 
WA_ICSPOLOAU_STR-PROPMAKE sy-vline 
WA_ICSPOLOAU_STR-PROPMODEL sy-vline 
WA_ICSPOLOAU_STR-MODELTY sy-vline 
WA_ICSPOLOAU_STR-VIN sy-vline 
WA_ICSPOLOAU_STR-PLATECOUNTRY sy-vline 
WA_ICSPOLOAU_STR-PLATEREGION sy-vline 
WA_ICSPOLOAU_STR-PLATENO sy-vline 
WA_ICSPOLOAU_STR-CONSTYEAR sy-vline 
WA_ICSPOLOAU_STR-CAPACITY sy-vline 
WA_ICSPOLOAU_STR-CAPUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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