ABAP Select data from SAP table ICAINTRUNHISITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAINTRUNHISITEM
*  INTO TABLE @DATA(IT_ICAINTRUNHISITEM2).
*--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_ICAINTRUNHISITEM INDEX 1 INTO DATA(WA_ICAINTRUNHISITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAINTRUNHISITEM>-MANDT = 1.
<ICAINTRUNHISITEM>-CAMASSRUNID = 1.
<ICAINTRUNHISITEM>-CAMASSRUNDATE = 1.
<ICAINTRUNHISITEM>-BUSINESSPARTNER = 1.
<ICAINTRUNHISITEM>-CONTRACTACCOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAINTRUNHISITEM-CAINTERESTDOCUMENT, sy-vline,
  WA_ICAINTRUNHISITEM-CAINTERESTITEMNUMBER, sy-vline,
  WA_ICAINTRUNHISITEM-CADOCUMENTNUMBER, sy-vline,
  WA_ICAINTRUNHISITEM-CAREPETITIONITEMNUMBER, sy-vline,
  WA_ICAINTRUNHISITEM-CABPITEMNUMBER, sy-vline,
  WA_ICAINTRUNHISITEM-CASUBITEMNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICAINTRUNHISITEM 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_ICAINTRUNHISITEM 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_ICAINTRUNHISITEM INTO WA_ICAINTRUNHISITEM.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CASECURITYDEPOSIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICAINTRUNHISITEM-CASECURITYDEPOSIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICAINTRUNHISITEM-CASECURITYDEPOSIT.
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_ICAINTRUNHISITEM_STR, 
MANDT TYPE STRING,
CAMASSRUNID TYPE STRING,
CAMASSRUNDATE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CAINTERESTDOCUMENT TYPE STRING,
CAINTERESTITEMNUMBER TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,
CAINTERESTSEQUENCENUMBER TYPE STRING,
CAISSIMULATIONRUN TYPE STRING,
INTERESTCALCSTARTDATE TYPE STRING,
INTERESTCALCENDDATE TYPE STRING,
CASUBSTITUTEDOCUMENTNUMBER TYPE STRING,
CASUBSTITUTEDOCUMENTCATEGORY TYPE STRING,
CAINTERESTCATEGORY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAAMOUNTINTRANSACTIONCURRENCY TYPE STRING,
CAINTERESTCODE TYPE STRING,
CAINTERESTRATE TYPE STRING,
CAINTERESTAMOUNTINTRANSCRCY TYPE STRING,
CAINTERESTISCREATEDBYROUNDING TYPE STRING,
CASECURITYDEPOSIT TYPE STRING,
CAINTERESTCALCMONTHLYCALDAY TYPE STRING,
CAINTERESTISCALCULATEDALREADY TYPE STRING,
CAINTERESTISCREATEDBYTAXPOSTG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICAINTRUNHISITEM_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_ICAINTRUNHISITEM_STR-MANDT sy-vline 
WA_ICAINTRUNHISITEM_STR-CAMASSRUNID sy-vline 
WA_ICAINTRUNHISITEM_STR-CAMASSRUNDATE sy-vline 
WA_ICAINTRUNHISITEM_STR-BUSINESSPARTNER sy-vline 
WA_ICAINTRUNHISITEM_STR-CONTRACTACCOUNT sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTDOCUMENT sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTITEMNUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CADOCUMENTNUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CABPITEMNUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CASUBITEMNUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTSEQUENCENUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CAISSIMULATIONRUN sy-vline 
WA_ICAINTRUNHISITEM_STR-INTERESTCALCSTARTDATE sy-vline 
WA_ICAINTRUNHISITEM_STR-INTERESTCALCENDDATE sy-vline 
WA_ICAINTRUNHISITEM_STR-CASUBSTITUTEDOCUMENTNUMBER sy-vline 
WA_ICAINTRUNHISITEM_STR-CASUBSTITUTEDOCUMENTCATEGORY sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTCATEGORY sy-vline 
WA_ICAINTRUNHISITEM_STR-TRANSACTIONCURRENCY sy-vline 
WA_ICAINTRUNHISITEM_STR-CAAMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTCODE sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTRATE sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTAMOUNTINTRANSCRCY sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTISCREATEDBYROUNDING sy-vline 
WA_ICAINTRUNHISITEM_STR-CASECURITYDEPOSIT sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTCALCMONTHLYCALDAY sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTISCALCULATEDALREADY sy-vline 
WA_ICAINTRUNHISITEM_STR-CAINTERESTISCREATEDBYTAXPOSTG sy-vline      INTO ld_text SEPARATED BY SPACE.

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