ABAP Select data from SAP table FIRUS_RECON_REP_ITEMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIRUS_RECON_REP_ITEMS
*  INTO TABLE @DATA(IT_FIRUS_RECON_REP_ITEMS2).
*--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_FIRUS_RECON_REP_ITEMS INDEX 1 INTO DATA(WA_FIRUS_RECON_REP_ITEMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIRUS_RECON_REP_ITEMS>-CONTRACT = 1.
<FIRUS_RECON_REP_ITEMS>-COMPANYCODE = 1.
<FIRUS_RECON_REP_ITEMS>-ACCOUNTINGDOCUMENT = 1.
<FIRUS_RECON_REP_ITEMS>-FISCALYEAR = 1.
<FIRUS_RECON_REP_ITEMS>-DOCUMENTKIND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIRUS_RECON_REP_ITEMS-DOCUMENTKINDDESCRIPTION, sy-vline,
  WA_FIRUS_RECON_REP_ITEMS-POSTINGDATE, sy-vline,
  WA_FIRUS_RECON_REP_ITEMS-DOCUMENTDATE, sy-vline,
  WA_FIRUS_RECON_REP_ITEMS-FINANCIALACCOUNTTYPE, sy-vline,
  WA_FIRUS_RECON_REP_ITEMS-DEBTOR, sy-vline,
  WA_FIRUS_RECON_REP_ITEMS-CREDITOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIRUS_RECON_REP_ITEMS 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_FIRUS_RECON_REP_ITEMS 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_FIRUS_RECON_REP_ITEMS INTO WA_FIRUS_RECON_REP_ITEMS.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIRUS_RECON_REP_ITEMS-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIRUS_RECON_REP_ITEMS-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CREDITOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIRUS_RECON_REP_ITEMS-CREDITOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIRUS_RECON_REP_ITEMS-CREDITOR.
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_FIRUS_RECON_REP_ITEMS_STR, 
CONTRACT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
DOCUMENTKIND TYPE STRING,
DOCUMENTKINDDESCRIPTION TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
DEBTOR TYPE STRING,
CREDITOR TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
LTEXT TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
AMOUNT_D_LC TYPE STRING,
AMOUNT_C_LC TYPE STRING,
AMOUNT_D_TC TYPE STRING,
AMOUNT_C_TC TYPE STRING,
KEY TYPE STRING,
GENERATED_ID TYPE STRING,
ITEM_COUNT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
EXTERNALINVOICE TYPE STRING,
INVOICEDATE TYPE STRING,
INVOICENUMBER TYPE STRING,
RESULTINVDATE TYPE STRING,
CONTRACT_TYPE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
DEBITAMOUNTINCOCODECRCY TYPE STRING,
CREDITAMOUNTINCOCODECRCY TYPE STRING,
DEBITAMOUNTINTRANSCRCY TYPE STRING,
CREDITAMOUNTINTRANSCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIRUS_RECON_REP_ITEMS_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_FIRUS_RECON_REP_ITEMS_STR-CONTRACT sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-COMPANYCODE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-FISCALYEAR sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DOCUMENTKIND sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DOCUMENTKINDDESCRIPTION sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-POSTINGDATE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DOCUMENTDATE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DEBTOR sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-CREDITOR sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-LTEXT sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-COMPANYCODECURRENCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-TRANSACTIONCURRENCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-AMOUNT_D_LC sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-AMOUNT_C_LC sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-AMOUNT_D_TC sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-AMOUNT_C_TC sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-KEY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-GENERATED_ID sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-ITEM_COUNT sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DOCUMENTREFERENCEID sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-EXTERNALINVOICE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-INVOICEDATE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-INVOICENUMBER sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-RESULTINVDATE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-CONTRACT_TYPE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DEBITCREDITCODE sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DEBITAMOUNTINCOCODECRCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-CREDITAMOUNTINCOCODECRCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-DEBITAMOUNTINTRANSCRCY sy-vline 
WA_FIRUS_RECON_REP_ITEMS_STR-CREDITAMOUNTINTRANSCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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