ABAP Select data from SAP table IBIACCOUNTITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBIACCOUNTITEM
*  INTO TABLE @DATA(IT_IBIACCOUNTITEM2).
*--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_IBIACCOUNTITEM INDEX 1 INTO DATA(WA_IBIACCOUNTITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBIACCOUNTITEM>-MANDT = 1.
<IBIACCOUNTITEM>-CADOCUMENTNUMBER = 1.
<IBIACCOUNTITEM>-CAREPETITIONITEMNUMBER = 1.
<IBIACCOUNTITEM>-CABPITEMNUMBER = 1.
<IBIACCOUNTITEM>-CASUBITEMNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBIACCOUNTITEM-CUSTOMEREVENTRECORDID, sy-vline,
  WA_IBIACCOUNTITEM-BUSINESSPARTNER, sy-vline,
  WA_IBIACCOUNTITEM-CONTRACTACCOUNT, sy-vline,
  WA_IBIACCOUNTITEM-CACONTRACT, sy-vline,
  WA_IBIACCOUNTITEM-POSTINGDATE, sy-vline,
  WA_IBIACCOUNTITEM-CANETDUEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBIACCOUNTITEM 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_IBIACCOUNTITEM 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_IBIACCOUNTITEM INTO WA_IBIACCOUNTITEM.


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

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

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBIACCOUNTITEM-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBIACCOUNTITEM-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_IBIACCOUNTITEM_STR, 
MANDT TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,
CUSTOMEREVENTRECORDID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CACONTRACT TYPE STRING,
POSTINGDATE TYPE STRING,
CANETDUEDATE TYPE STRING,
CAAMOUNTINLOCALCURRENCY TYPE STRING,
LOCALCURRENCY TYPE STRING,
CAPERIODCODE TYPE STRING,
CADOCUMENTTYPE TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CASUBTRANSACTION TYPE STRING,
CACLEARINGREASON TYPE STRING,
CACLEARINGSTATUS TYPE STRING,
CACLEARINGDATE TYPE STRING,
CAVALUEDATEFORCLEARING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBIACCOUNTITEM_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_IBIACCOUNTITEM_STR-MANDT sy-vline 
WA_IBIACCOUNTITEM_STR-CADOCUMENTNUMBER sy-vline 
WA_IBIACCOUNTITEM_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_IBIACCOUNTITEM_STR-CABPITEMNUMBER sy-vline 
WA_IBIACCOUNTITEM_STR-CASUBITEMNUMBER sy-vline 
WA_IBIACCOUNTITEM_STR-CUSTOMEREVENTRECORDID sy-vline 
WA_IBIACCOUNTITEM_STR-BUSINESSPARTNER sy-vline 
WA_IBIACCOUNTITEM_STR-CONTRACTACCOUNT sy-vline 
WA_IBIACCOUNTITEM_STR-CACONTRACT sy-vline 
WA_IBIACCOUNTITEM_STR-POSTINGDATE sy-vline 
WA_IBIACCOUNTITEM_STR-CANETDUEDATE sy-vline 
WA_IBIACCOUNTITEM_STR-CAAMOUNTINLOCALCURRENCY sy-vline 
WA_IBIACCOUNTITEM_STR-LOCALCURRENCY sy-vline 
WA_IBIACCOUNTITEM_STR-CAPERIODCODE sy-vline 
WA_IBIACCOUNTITEM_STR-CADOCUMENTTYPE sy-vline 
WA_IBIACCOUNTITEM_STR-CAMAINTRANSACTION sy-vline 
WA_IBIACCOUNTITEM_STR-CASUBTRANSACTION sy-vline 
WA_IBIACCOUNTITEM_STR-CACLEARINGREASON sy-vline 
WA_IBIACCOUNTITEM_STR-CACLEARINGSTATUS sy-vline 
WA_IBIACCOUNTITEM_STR-CACLEARINGDATE sy-vline 
WA_IBIACCOUNTITEM_STR-CAVALUEDATEFORCLEARING sy-vline      INTO ld_text SEPARATED BY SPACE.

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