ABAP Select data from SAP table ICARETURNACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICARETURNACT
*  INTO TABLE @DATA(IT_ICARETURNACT2).
*--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_ICARETURNACT INDEX 1 INTO DATA(WA_ICARETURNACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICARETURNACT>-MANDT = 1.
<ICARETURNACT>-BUSINESSPARTNER = 1.
<ICARETURNACT>-CONTRACTACCOUNT = 1.
<ICARETURNACT>-CARETURNDOCUMENTNUMBER = 1.
<ICARETURNACT>-CARETURNLOT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICARETURNACT-CAITEMNUMBERINRETURNLOT, sy-vline,
  WA_ICARETURNACT-COMPANYCODE, sy-vline,
  WA_ICARETURNACT-CARETURNREASON, sy-vline,
  WA_ICARETURNACT-CANUMBEROFRETSINOBSVNPERD, sy-vline,
  WA_ICARETURNACT-CACREDITWORTHINESS, sy-vline,
  WA_ICARETURNACT-CATOLERANCEGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICARETURNACT 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_ICARETURNACT 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_ICARETURNACT INTO WA_ICARETURNACT.


*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_ICARETURNACT-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICARETURNACT-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CARETURNDOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICARETURNACT-CARETURNDOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICARETURNACT-CARETURNDOCUMENTNUMBER.
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_ICARETURNACT_STR, 
MANDT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CARETURNDOCUMENTNUMBER TYPE STRING,
CARETURNLOT TYPE STRING,
CAITEMNUMBERINRETURNLOT TYPE STRING,
COMPANYCODE TYPE STRING,
CARETURNREASON TYPE STRING,
CANUMBEROFRETSINOBSVNPERD TYPE STRING,
CACREDITWORTHINESS TYPE STRING,
CATOLERANCEGROUP TYPE STRING,
CABANKCHARGEISPASSEDONBP TYPE STRING,
CAGRADUATEDCHARGEISCALCULATED TYPE STRING,
CABANKDETAILSAREDELETED TYPE STRING,
CADEFERRALDAYS TYPE STRING,
CADEFERRALDATE TYPE STRING,
CADUNNINGLOCKREASONFORLINEITEM TYPE STRING,
CADURATIONINDAYSOFDUNLOCKITEM TYPE STRING,
CAPAYMENTLOCKREASONFORLINEITEM TYPE STRING,
CADURATIONINDAYSOFINCGPAYTLOCK TYPE STRING,
CADUNNINGLOCKRSNFORCONTRACCT TYPE STRING,
CADURNINDAYSOFCONTRACCTDUNLOCK TYPE STRING,
CAINCGPAYLOCKRSNFORCONTRACCT TYPE STRING,
CADURNOFCONTRACCTINCGPAYTLOCK TYPE STRING,
CAOUTGPAYLOCKRSNFORCONTRACCT TYPE STRING,
CADURNOFCONTRACCTOUTGPAYTLOCK TYPE STRING,
CAPAYMENTMETHODFORINCGPAYMENT TYPE STRING,
CACHARGEISPOSTEDSTATISTICALLY TYPE STRING,
CAEVTFORCHGGMDISACTIVATED TYPE STRING,
CASPECIALISTWILLBEINFORMED TYPE STRING,
CAEVTFORCRTNCORRESPNCISACTVTD TYPE STRING,
CAPAYMENTMETHODINITEMISDELETED TYPE STRING,
CAPAYTMETHINITEMCANBECHANGED TYPE STRING,
CAWRITETOINFOCTNISACTIVATED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICARETURNACT_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_ICARETURNACT_STR-MANDT sy-vline 
WA_ICARETURNACT_STR-BUSINESSPARTNER sy-vline 
WA_ICARETURNACT_STR-CONTRACTACCOUNT sy-vline 
WA_ICARETURNACT_STR-CARETURNDOCUMENTNUMBER sy-vline 
WA_ICARETURNACT_STR-CARETURNLOT sy-vline 
WA_ICARETURNACT_STR-CAITEMNUMBERINRETURNLOT sy-vline 
WA_ICARETURNACT_STR-COMPANYCODE sy-vline 
WA_ICARETURNACT_STR-CARETURNREASON sy-vline 
WA_ICARETURNACT_STR-CANUMBEROFRETSINOBSVNPERD sy-vline 
WA_ICARETURNACT_STR-CACREDITWORTHINESS sy-vline 
WA_ICARETURNACT_STR-CATOLERANCEGROUP sy-vline 
WA_ICARETURNACT_STR-CABANKCHARGEISPASSEDONBP sy-vline 
WA_ICARETURNACT_STR-CAGRADUATEDCHARGEISCALCULATED sy-vline 
WA_ICARETURNACT_STR-CABANKDETAILSAREDELETED sy-vline 
WA_ICARETURNACT_STR-CADEFERRALDAYS sy-vline 
WA_ICARETURNACT_STR-CADEFERRALDATE sy-vline 
WA_ICARETURNACT_STR-CADUNNINGLOCKREASONFORLINEITEM sy-vline 
WA_ICARETURNACT_STR-CADURATIONINDAYSOFDUNLOCKITEM sy-vline 
WA_ICARETURNACT_STR-CAPAYMENTLOCKREASONFORLINEITEM sy-vline 
WA_ICARETURNACT_STR-CADURATIONINDAYSOFINCGPAYTLOCK sy-vline 
WA_ICARETURNACT_STR-CADUNNINGLOCKRSNFORCONTRACCT sy-vline 
WA_ICARETURNACT_STR-CADURNINDAYSOFCONTRACCTDUNLOCK sy-vline 
WA_ICARETURNACT_STR-CAINCGPAYLOCKRSNFORCONTRACCT sy-vline 
WA_ICARETURNACT_STR-CADURNOFCONTRACCTINCGPAYTLOCK sy-vline 
WA_ICARETURNACT_STR-CAOUTGPAYLOCKRSNFORCONTRACCT sy-vline 
WA_ICARETURNACT_STR-CADURNOFCONTRACCTOUTGPAYTLOCK sy-vline 
WA_ICARETURNACT_STR-CAPAYMENTMETHODFORINCGPAYMENT sy-vline 
WA_ICARETURNACT_STR-CACHARGEISPOSTEDSTATISTICALLY sy-vline 
WA_ICARETURNACT_STR-CAEVTFORCHGGMDISACTIVATED sy-vline 
WA_ICARETURNACT_STR-CASPECIALISTWILLBEINFORMED sy-vline 
WA_ICARETURNACT_STR-CAEVTFORCRTNCORRESPNCISACTVTD sy-vline 
WA_ICARETURNACT_STR-CAPAYMENTMETHODINITEMISDELETED sy-vline 
WA_ICARETURNACT_STR-CAPAYTMETHINITEMCANBECHANGED sy-vline 
WA_ICARETURNACT_STR-CAWRITETOINFOCTNISACTIVATED sy-vline      INTO ld_text SEPARATED BY SPACE.

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