ABAP Select data from SAP table FEB_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FEB_ITEM
*  INTO TABLE @DATA(IT_FEB_ITEM2).
*--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_FEB_ITEM INDEX 1 INTO DATA(WA_FEB_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FEB_ITEM>-BANKSTATEMENTITEM = 1.
<FEB_ITEM>-BANKPOSTINGDATE = 1.
<FEB_ITEM>-POSTINGDATEFORJOURNALENTRY = 1.
<FEB_ITEM>-VALUEDATE = 1.
<FEB_ITEM>-TRANSACTIONCURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FEB_ITEM-AMOUNTINTRANSACTIONCURRENCY, sy-vline,
  WA_FEB_ITEM-FEEAMOUNTINTRANSACTIONCRCY, sy-vline,
  WA_FEB_ITEM-ORIGINALCURRENCY, sy-vline,
  WA_FEB_ITEM-AMOUNTINORIGINALCURRENCY, sy-vline,
  WA_FEB_ITEM-FEEAMOUNTINORIGINALCRCY, sy-vline,
  WA_FEB_ITEM-PAYMENTEXTERNALTRANSACTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FEB_ITEM 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_FEB_ITEM 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_FEB_ITEM INTO WA_FEB_ITEM.


*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 AC132, internal->external for field AMOUNTINTRANSACTIONCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FEB_ITEM-AMOUNTINTRANSACTIONCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_ITEM-AMOUNTINTRANSACTIONCURRENCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FEEAMOUNTINTRANSACTIONCRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FEB_ITEM-FEEAMOUNTINTRANSACTIONCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_ITEM-FEEAMOUNTINTRANSACTIONCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AMOUNTINORIGINALCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FEB_ITEM-AMOUNTINORIGINALCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_ITEM-AMOUNTINORIGINALCURRENCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FEEAMOUNTINORIGINALCRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FEB_ITEM-FEEAMOUNTINORIGINALCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_ITEM-FEEAMOUNTINORIGINALCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGERATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FEB_ITEM-EXCHANGERATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_ITEM-EXCHANGERATE.
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_FEB_ITEM_STR, 
BANKSTATEMENTITEM TYPE STRING,
BANKPOSTINGDATE TYPE STRING,
POSTINGDATEFORJOURNALENTRY TYPE STRING,
VALUEDATE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
FEEAMOUNTINTRANSACTIONCRCY TYPE STRING,
ORIGINALCURRENCY TYPE STRING,
AMOUNTINORIGINALCURRENCY TYPE STRING,
FEEAMOUNTINORIGINALCRCY TYPE STRING,
PAYMENTEXTERNALTRANSACTYPE TYPE STRING,
PARTNERBANKCOUNTRY TYPE STRING,
PARTNERBANKKEY TYPE STRING,
PARTNERBANKACCOUNT TYPE STRING,
PARTNERBANKSWIFTCODE TYPE STRING,
PARTNERBANKIBAN TYPE STRING,
PARTNERNAME TYPE STRING,
CHEQUE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
EXCHANGERATE TYPE STRING,
TEXTFORJOURNALENTRY TYPE STRING,
BANKREFERENCE TYPE STRING,
BANKSTATEMENTITEMRETURNREASON TYPE STRING,
TRANSACTIONID TYPE STRING,
ADDITIONALINFORMATION TYPE STRING,
BPIDENTIFICATIONCATEGORY TYPE STRING,
BPIDENTIFICATIONNUMBER TYPE STRING,
MEMOLINE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FEB_ITEM_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_FEB_ITEM_STR-BANKSTATEMENTITEM sy-vline 
WA_FEB_ITEM_STR-BANKPOSTINGDATE sy-vline 
WA_FEB_ITEM_STR-POSTINGDATEFORJOURNALENTRY sy-vline 
WA_FEB_ITEM_STR-VALUEDATE sy-vline 
WA_FEB_ITEM_STR-TRANSACTIONCURRENCY sy-vline 
WA_FEB_ITEM_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_FEB_ITEM_STR-FEEAMOUNTINTRANSACTIONCRCY sy-vline 
WA_FEB_ITEM_STR-ORIGINALCURRENCY sy-vline 
WA_FEB_ITEM_STR-AMOUNTINORIGINALCURRENCY sy-vline 
WA_FEB_ITEM_STR-FEEAMOUNTINORIGINALCRCY sy-vline 
WA_FEB_ITEM_STR-PAYMENTEXTERNALTRANSACTYPE sy-vline 
WA_FEB_ITEM_STR-PARTNERBANKCOUNTRY sy-vline 
WA_FEB_ITEM_STR-PARTNERBANKKEY sy-vline 
WA_FEB_ITEM_STR-PARTNERBANKACCOUNT sy-vline 
WA_FEB_ITEM_STR-PARTNERBANKSWIFTCODE sy-vline 
WA_FEB_ITEM_STR-PARTNERBANKIBAN sy-vline 
WA_FEB_ITEM_STR-PARTNERNAME sy-vline 
WA_FEB_ITEM_STR-CHEQUE sy-vline 
WA_FEB_ITEM_STR-DEBITCREDITCODE sy-vline 
WA_FEB_ITEM_STR-EXCHANGERATE sy-vline 
WA_FEB_ITEM_STR-TEXTFORJOURNALENTRY sy-vline 
WA_FEB_ITEM_STR-BANKREFERENCE sy-vline 
WA_FEB_ITEM_STR-BANKSTATEMENTITEMRETURNREASON sy-vline 
WA_FEB_ITEM_STR-TRANSACTIONID sy-vline 
WA_FEB_ITEM_STR-ADDITIONALINFORMATION sy-vline 
WA_FEB_ITEM_STR-BPIDENTIFICATIONCATEGORY sy-vline 
WA_FEB_ITEM_STR-BPIDENTIFICATIONNUMBER sy-vline 
WA_FEB_ITEM_STR-MEMOLINE sy-vline      INTO ld_text SEPARATED BY SPACE.

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