ABAP Select data from SAP table ICAINTERESTITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAINTERESTITEM
*  INTO TABLE @DATA(IT_ICAINTERESTITEM2).
*--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_ICAINTERESTITEM INDEX 1 INTO DATA(WA_ICAINTERESTITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAINTERESTITEM>-MANDT = 1.
<ICAINTERESTITEM>-CAPOSTINGDATEOFCLEARINGDOC = 1.
<ICAINTERESTITEM>-CACLEARINGDOCUMENTNUMBER = 1.
<ICAINTERESTITEM>-CATAXAMOUNTINCLEARINGCRCY = 1.
<ICAINTERESTITEM>-CACLEARINGAMOUNTINCLEARINGCRCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAINTERESTITEM-CAAPPLICATIONAREA, sy-vline,
  WA_ICAINTERESTITEM-CACLEARINGDATE, sy-vline,
  WA_ICAINTERESTITEM-CAITEMISWITHDRAWN, sy-vline,
  WA_ICAINTERESTITEM-CACLEARINGREASON, sy-vline,
  WA_ICAINTERESTITEM-CACASHDISCAMOUNTINCLEARINGCRCY, sy-vline,
  WA_ICAINTERESTITEM-CACLEARINGSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICAINTERESTITEM 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_ICAINTERESTITEM 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_ICAINTERESTITEM INTO WA_ICAINTERESTITEM.


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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICAINTERESTITEM-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAINTERESTITEM-CACONTRACT.
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_ICAINTERESTITEM_STR, 
MANDT TYPE STRING,
CAPOSTINGDATEOFCLEARINGDOC TYPE STRING,
CACLEARINGDOCUMENTNUMBER TYPE STRING,
CATAXAMOUNTINCLEARINGCRCY TYPE STRING,
CACLEARINGAMOUNTINCLEARINGCRCY TYPE STRING,
CAAPPLICATIONAREA TYPE STRING,
CACLEARINGDATE TYPE STRING,
CAITEMISWITHDRAWN TYPE STRING,
CACLEARINGREASON TYPE STRING,
CACASHDISCAMOUNTINCLEARINGCRCY TYPE STRING,
CACLEARINGSTATUS TYPE STRING,
CAVALUEDATEFORCLEARING TYPE STRING,
CACLEARINGCURRENCY TYPE STRING,
CAAMOUNTINSECONDCURRENCY TYPE STRING,
CAAMOUNTINTHIRDCURRENCY TYPE STRING,
CAAMOUNTINLOCALCURRENCY TYPE STRING,
CAAMOUNTINTRANSACTIONCURRENCY TYPE STRING,
DOCUMENTDATE TYPE STRING,
CAPOSTINGDATE TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSPLACE TYPE STRING,
CANETDUEDATE TYPE STRING,
CACASHDISCOUNTDUEDATE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSAREA TYPE STRING,
CARECONCILIATIONACCOUNT TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CAMAINTRANSACTIONNAME TYPE STRING,
CAACCOUNTDETERMINATIONCODE TYPE STRING,
TAXCODE TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,
CATAXAMOUNTINSECONDCURRENCY TYPE STRING,
CATAXAMOUNTINTHIRDCURRENCY TYPE STRING,
CATAXAMOUNTINLOCALCURRENCY TYPE STRING,
CATAXAMOUNTINTRANSCURRENCY TYPE STRING,
SEGMENT TYPE STRING,
CAELIGIBLEAMOUNTFORCSHDISCOUNT TYPE STRING,
DIVISION TYPE STRING,
CASTATISTICALITEMCODE TYPE STRING,
CATAXPORTIONINTRANSCURRENCY TYPE STRING,
CASUBTRANSACTION TYPE STRING,
CASUBTRANSACTIONNAME TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CAADDITIONALCONTRACT TYPE STRING,
CACONTRACT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
ADDITIONALCURRENCY1 TYPE STRING,
ADDITIONALCURRENCY2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICAINTERESTITEM_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_ICAINTERESTITEM_STR-MANDT sy-vline 
WA_ICAINTERESTITEM_STR-CAPOSTINGDATEOFCLEARINGDOC sy-vline 
WA_ICAINTERESTITEM_STR-CACLEARINGDOCUMENTNUMBER sy-vline 
WA_ICAINTERESTITEM_STR-CATAXAMOUNTINCLEARINGCRCY sy-vline 
WA_ICAINTERESTITEM_STR-CACLEARINGAMOUNTINCLEARINGCRCY sy-vline 
WA_ICAINTERESTITEM_STR-CAAPPLICATIONAREA sy-vline 
WA_ICAINTERESTITEM_STR-CACLEARINGDATE sy-vline 
WA_ICAINTERESTITEM_STR-CAITEMISWITHDRAWN sy-vline 
WA_ICAINTERESTITEM_STR-CACLEARINGREASON sy-vline 
WA_ICAINTERESTITEM_STR-CACASHDISCAMOUNTINCLEARINGCRCY sy-vline 
WA_ICAINTERESTITEM_STR-CACLEARINGSTATUS sy-vline 
WA_ICAINTERESTITEM_STR-CAVALUEDATEFORCLEARING sy-vline 
WA_ICAINTERESTITEM_STR-CACLEARINGCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CAAMOUNTINSECONDCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CAAMOUNTINTHIRDCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CAAMOUNTINLOCALCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CAAMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-DOCUMENTDATE sy-vline 
WA_ICAINTERESTITEM_STR-CAPOSTINGDATE sy-vline 
WA_ICAINTERESTITEM_STR-COMPANYCODE sy-vline 
WA_ICAINTERESTITEM_STR-BUSINESSPLACE sy-vline 
WA_ICAINTERESTITEM_STR-CANETDUEDATE sy-vline 
WA_ICAINTERESTITEM_STR-CACASHDISCOUNTDUEDATE sy-vline 
WA_ICAINTERESTITEM_STR-BUSINESSPARTNER sy-vline 
WA_ICAINTERESTITEM_STR-BUSINESSAREA sy-vline 
WA_ICAINTERESTITEM_STR-CARECONCILIATIONACCOUNT sy-vline 
WA_ICAINTERESTITEM_STR-CAMAINTRANSACTION sy-vline 
WA_ICAINTERESTITEM_STR-CAMAINTRANSACTIONNAME sy-vline 
WA_ICAINTERESTITEM_STR-CAACCOUNTDETERMINATIONCODE sy-vline 
WA_ICAINTERESTITEM_STR-TAXCODE sy-vline 
WA_ICAINTERESTITEM_STR-CADOCUMENTNUMBER sy-vline 
WA_ICAINTERESTITEM_STR-CABPITEMNUMBER sy-vline 
WA_ICAINTERESTITEM_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_ICAINTERESTITEM_STR-CASUBITEMNUMBER sy-vline 
WA_ICAINTERESTITEM_STR-CATAXAMOUNTINSECONDCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CATAXAMOUNTINTHIRDCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CATAXAMOUNTINLOCALCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CATAXAMOUNTINTRANSCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-SEGMENT sy-vline 
WA_ICAINTERESTITEM_STR-CAELIGIBLEAMOUNTFORCSHDISCOUNT sy-vline 
WA_ICAINTERESTITEM_STR-DIVISION sy-vline 
WA_ICAINTERESTITEM_STR-CASTATISTICALITEMCODE sy-vline 
WA_ICAINTERESTITEM_STR-CATAXPORTIONINTRANSCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-CASUBTRANSACTION sy-vline 
WA_ICAINTERESTITEM_STR-CASUBTRANSACTIONNAME sy-vline 
WA_ICAINTERESTITEM_STR-CONTRACTACCOUNT sy-vline 
WA_ICAINTERESTITEM_STR-CAADDITIONALCONTRACT sy-vline 
WA_ICAINTERESTITEM_STR-CACONTRACT sy-vline 
WA_ICAINTERESTITEM_STR-TRANSACTIONCURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_ICAINTERESTITEM_STR-ADDITIONALCURRENCY1 sy-vline 
WA_ICAINTERESTITEM_STR-ADDITIONALCURRENCY2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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