ABAP Select data from SAP table ICSPOLL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICSPOLL 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 ICSPOLL. 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 ICSPOLL 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_ICSPOLL TYPE STANDARD TABLE OF ICSPOLL,
      WA_ICSPOLL TYPE ICSPOLL,
      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: <ICSPOLL> TYPE ICSPOLL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICSPOLL
*  INTO TABLE @DATA(IT_ICSPOLL2).
*--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_ICSPOLL INDEX 1 INTO DATA(WA_ICSPOLL2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICSPOLL-BENTYPE, sy-vline,
  WA_ICSPOLL-INSUREDOBJ, sy-vline,
  WA_ICSPOLL-PRIORITY, sy-vline,
  WA_ICSPOLL-CHANGETIME, sy-vline,
  WA_ICSPOLL-CHANGEDBY, sy-vline,
  WA_ICSPOLL-DELETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICSPOLL 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_ICSPOLL 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_ICSPOLL INTO WA_ICSPOLL.


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

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

*Conversion exit CUNIT, internal->external for field LIMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICSPOLL-LIMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSPOLL-LIMUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DEDUCTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICSPOLL-DEDUCTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSPOLL-DEDUCTUNIT.
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_ICSPOLL_STR, 
CLIENT TYPE STRING,
ACTIVE TYPE STRING,
CLAIM TYPE STRING,
POLVNR TYPE STRING,
COVERAGE TYPE STRING,
BENTYPE TYPE STRING,
INSUREDOBJ TYPE STRING,
PRIORITY TYPE STRING,
CHANGETIME TYPE STRING,
CHANGEDBY TYPE STRING,
DELETED TYPE STRING,
CMC_RULE TYPE STRING,
LIMIT TYPE STRING,
LIMAMT TYPE STRING,
LIMUNIT TYPE STRING,
DEDUCTIBLE TYPE STRING,
DEDUCTAMOUNT TYPE STRING,
DEDUCTUNIT TYPE STRING,
XLIMIT TYPE STRING,
XLIMAMT TYPE STRING,
XDEDUC TYPE STRING,
XDEDAMT TYPE STRING,
REJREASON TYPE STRING,
DEDUCTPERC TYPE STRING,
SEVERAL TYPE STRING,
MODFTYPE TYPE STRING,
SEQUENCE TYPE STRING,
ASSIGN_GUID TYPE STRING,
TIMERESTRICT TYPE STRING,
XLIMITVALUE TYPE STRING,
RISKCURR_CD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICSPOLL_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_ICSPOLL_STR-CLIENT sy-vline 
WA_ICSPOLL_STR-ACTIVE sy-vline 
WA_ICSPOLL_STR-CLAIM sy-vline 
WA_ICSPOLL_STR-POLVNR sy-vline 
WA_ICSPOLL_STR-COVERAGE sy-vline 
WA_ICSPOLL_STR-BENTYPE sy-vline 
WA_ICSPOLL_STR-INSUREDOBJ sy-vline 
WA_ICSPOLL_STR-PRIORITY sy-vline 
WA_ICSPOLL_STR-CHANGETIME sy-vline 
WA_ICSPOLL_STR-CHANGEDBY sy-vline 
WA_ICSPOLL_STR-DELETED sy-vline 
WA_ICSPOLL_STR-CMC_RULE sy-vline 
WA_ICSPOLL_STR-LIMIT sy-vline 
WA_ICSPOLL_STR-LIMAMT sy-vline 
WA_ICSPOLL_STR-LIMUNIT sy-vline 
WA_ICSPOLL_STR-DEDUCTIBLE sy-vline 
WA_ICSPOLL_STR-DEDUCTAMOUNT sy-vline 
WA_ICSPOLL_STR-DEDUCTUNIT sy-vline 
WA_ICSPOLL_STR-XLIMIT sy-vline 
WA_ICSPOLL_STR-XLIMAMT sy-vline 
WA_ICSPOLL_STR-XDEDUC sy-vline 
WA_ICSPOLL_STR-XDEDAMT sy-vline 
WA_ICSPOLL_STR-REJREASON sy-vline 
WA_ICSPOLL_STR-DEDUCTPERC sy-vline 
WA_ICSPOLL_STR-SEVERAL sy-vline 
WA_ICSPOLL_STR-MODFTYPE sy-vline 
WA_ICSPOLL_STR-SEQUENCE sy-vline 
WA_ICSPOLL_STR-ASSIGN_GUID sy-vline 
WA_ICSPOLL_STR-TIMERESTRICT sy-vline 
WA_ICSPOLL_STR-XLIMITVALUE sy-vline 
WA_ICSPOLL_STR-RISKCURR_CD sy-vline      INTO ld_text SEPARATED BY SPACE.

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