ABAP Select data from SAP table ICNBKRECNCLNITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICNBKRECNCLNITEM
*  INTO TABLE @DATA(IT_ICNBKRECNCLNITEM2).
*--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_ICNBKRECNCLNITEM INDEX 1 INTO DATA(WA_ICNBKRECNCLNITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICNBKRECNCLNITEM>-MANDT = 1.
<ICNBKRECNCLNITEM>-COMPANYCODE = 1.
<ICNBKRECNCLNITEM>-HOUSEBANK = 1.
<ICNBKRECNCLNITEM>-HOUSEBANKACCOUNT = 1.
<ICNBKRECNCLNITEM>-BANKRECONCILIATIONDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICNBKRECNCLNITEM-LEDGER, sy-vline,
  WA_ICNBKRECNCLNITEM-HOUSEBANKCURRENCY, sy-vline,
  WA_ICNBKRECNCLNITEM-BANKACCOUNT, sy-vline,
  WA_ICNBKRECNCLNITEM-BANKACCOUNTREFERENCETEXT, sy-vline,
  WA_ICNBKRECNCLNITEM-BANKNAME, sy-vline,
  WA_ICNBKRECNCLNITEM-GLACCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICNBKRECNCLNITEM 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_ICNBKRECNCLNITEM 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_ICNBKRECNCLNITEM INTO WA_ICNBKRECNCLNITEM.


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

*Conversion exit ALPHA, internal->external for field GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICNBKRECNCLNITEM-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNBKRECNCLNITEM-GLACCOUNT.
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_ICNBKRECNCLNITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
BANKRECONCILIATIONDATE TYPE STRING,
LEDGER TYPE STRING,
HOUSEBANKCURRENCY TYPE STRING,
BANKACCOUNT TYPE STRING,
BANKACCOUNTREFERENCETEXT TYPE STRING,
BANKNAME TYPE STRING,
GLACCOUNT TYPE STRING,
ADJUSTEDGLACCTBALANCEAMT TYPE STRING,
ADJUSTEDBKACCTBALANCEAMT TYPE STRING,
BANKACCTBALANCEAMT TYPE STRING,
GLACCTBALANCEAMT TYPE STRING,
UNMATCHEDINCGBKSTMNTPAYT TYPE STRING,
UNMATCHEDOUTGBKSTMNTPAYT TYPE STRING,
UNMATCHEDINCGJRNLENTRPAYT TYPE STRING,
UNMATCHEDOUTGJRNLENTRPAYT TYPE STRING,
CREATIONUSERNAME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTBANKRECONCILIATIONDATE TYPE STRING,
BANKRECONCILIATIONSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICNBKRECNCLNITEM_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_ICNBKRECNCLNITEM_STR-MANDT sy-vline 
WA_ICNBKRECNCLNITEM_STR-COMPANYCODE sy-vline 
WA_ICNBKRECNCLNITEM_STR-HOUSEBANK sy-vline 
WA_ICNBKRECNCLNITEM_STR-HOUSEBANKACCOUNT sy-vline 
WA_ICNBKRECNCLNITEM_STR-BANKRECONCILIATIONDATE sy-vline 
WA_ICNBKRECNCLNITEM_STR-LEDGER sy-vline 
WA_ICNBKRECNCLNITEM_STR-HOUSEBANKCURRENCY sy-vline 
WA_ICNBKRECNCLNITEM_STR-BANKACCOUNT sy-vline 
WA_ICNBKRECNCLNITEM_STR-BANKACCOUNTREFERENCETEXT sy-vline 
WA_ICNBKRECNCLNITEM_STR-BANKNAME sy-vline 
WA_ICNBKRECNCLNITEM_STR-GLACCOUNT sy-vline 
WA_ICNBKRECNCLNITEM_STR-ADJUSTEDGLACCTBALANCEAMT sy-vline 
WA_ICNBKRECNCLNITEM_STR-ADJUSTEDBKACCTBALANCEAMT sy-vline 
WA_ICNBKRECNCLNITEM_STR-BANKACCTBALANCEAMT sy-vline 
WA_ICNBKRECNCLNITEM_STR-GLACCTBALANCEAMT sy-vline 
WA_ICNBKRECNCLNITEM_STR-UNMATCHEDINCGBKSTMNTPAYT sy-vline 
WA_ICNBKRECNCLNITEM_STR-UNMATCHEDOUTGBKSTMNTPAYT sy-vline 
WA_ICNBKRECNCLNITEM_STR-UNMATCHEDINCGJRNLENTRPAYT sy-vline 
WA_ICNBKRECNCLNITEM_STR-UNMATCHEDOUTGJRNLENTRPAYT sy-vline 
WA_ICNBKRECNCLNITEM_STR-CREATIONUSERNAME sy-vline 
WA_ICNBKRECNCLNITEM_STR-LASTCHANGEDATETIME sy-vline 
WA_ICNBKRECNCLNITEM_STR-LASTBANKRECONCILIATIONDATE sy-vline 
WA_ICNBKRECNCLNITEM_STR-BANKRECONCILIATIONSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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