ABAP Select data from SAP table IBKK_REF_ACCOUNT_INT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK_REF_ACCOUNT_INT
*  INTO TABLE @DATA(IT_IBKK_REF_ACCOUNT_INT2).
*--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_IBKK_REF_ACCOUNT_INT INDEX 1 INTO DATA(WA_IBKK_REF_ACCOUNT_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK_REF_ACCOUNT_INT>-REFERENCEACCOUNTCATEGORY = 1.
<IBKK_REF_ACCOUNT_INT>-DESCRREFACCOUNTCATEGORY = 1.
<IBKK_REF_ACCOUNT_INT>-REFACCBANKAREA = 1.
<IBKK_REF_ACCOUNT_INT>-DESCRREFACCBANKAREA = 1.
<IBKK_REF_ACCOUNT_INT>-REFACCACCOUNTINTNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK_REF_ACCOUNT_INT-INTERESTPOSTINGACCOUNT, sy-vline,
  WA_IBKK_REF_ACCOUNT_INT-DESCRINTERESTPOSTMETH, sy-vline,
  WA_IBKK_REF_ACCOUNT_INT-REFACCCOUNTRYKEY, sy-vline,
  WA_IBKK_REF_ACCOUNT_INT-DESCRCOUNTRYKEY, sy-vline,
  WA_IBKK_REF_ACCOUNT_INT-REFACCBANKKEY, sy-vline,
  WA_IBKK_REF_ACCOUNT_INT-REFACCACOUNTEXTNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK_REF_ACCOUNT_INT 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_IBKK_REF_ACCOUNT_INT 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_IBKK_REF_ACCOUNT_INT INTO WA_IBKK_REF_ACCOUNT_INT.


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

*Conversion exit ACEXT, internal->external for field REFACCACOUNTEXTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ACEXT_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_REF_ACCOUNT_INT-REFACCACOUNTEXTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_REF_ACCOUNT_INT-REFACCACOUNTEXTNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFACCIBAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_REF_ACCOUNT_INT-REFACCIBAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_REF_ACCOUNT_INT-REFACCIBAN.
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_IBKK_REF_ACCOUNT_INT_STR, 
REFERENCEACCOUNTCATEGORY TYPE STRING,
DESCRREFACCOUNTCATEGORY TYPE STRING,
REFACCBANKAREA TYPE STRING,
DESCRREFACCBANKAREA TYPE STRING,
REFACCACCOUNTINTNUMBER TYPE STRING,
INTERESTPOSTINGACCOUNT TYPE STRING,
DESCRINTERESTPOSTMETH TYPE STRING,
REFACCCOUNTRYKEY TYPE STRING,
DESCRCOUNTRYKEY TYPE STRING,
REFACCBANKKEY TYPE STRING,
REFACCACOUNTEXTNUMBER TYPE STRING,
REFACCIBAN TYPE STRING,
REFACCACCOUNTHOLDER TYPE STRING,
TRANSACTIONTYPE TYPE STRING,
DESCRTRANSACTIONTYPE TYPE STRING,
TRANSACTIONTYPE2 TYPE STRING,
DESCRTRANSACTIONTYPE2 TYPE STRING,
PAYMENTMETHOD TYPE STRING,
DESCRMEDIUM TYPE STRING,
FLGNOCHECKDIGITCALC TYPE STRING,
ACCOUNTCLOSURENOTE1 TYPE STRING,
ACCOUNTCLOSURENOTE2 TYPE STRING,
ACCOUNTCLOSURENOTE3 TYPE STRING,
ACCOUNTCLOSURENOTE4 TYPE STRING,
CONTAINERFIELD1 TYPE STRING,
CONTAINERFIELD2 TYPE STRING,
CONTAINERFIELD3 TYPE STRING,
CONTAINERFIELD4 TYPE STRING,
CONTAINERFIELD5 TYPE STRING,
CONTAINERFIELD6 TYPE STRING,
REFACCRELEASESTATUS TYPE STRING,
DESCRRELEASESTATUS TYPE STRING,
REFACCDECLINEKEY TYPE STRING,
DESCRDECLINEKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK_REF_ACCOUNT_INT_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_IBKK_REF_ACCOUNT_INT_STR-REFERENCEACCOUNTCATEGORY sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRREFACCOUNTCATEGORY sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCBANKAREA sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRREFACCBANKAREA sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCACCOUNTINTNUMBER sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-INTERESTPOSTINGACCOUNT sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRINTERESTPOSTMETH sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCCOUNTRYKEY sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRCOUNTRYKEY sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCBANKKEY sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCACOUNTEXTNUMBER sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCIBAN sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCACCOUNTHOLDER sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-TRANSACTIONTYPE sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRTRANSACTIONTYPE sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-TRANSACTIONTYPE2 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRTRANSACTIONTYPE2 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-PAYMENTMETHOD sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRMEDIUM sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-FLGNOCHECKDIGITCALC sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-ACCOUNTCLOSURENOTE1 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-ACCOUNTCLOSURENOTE2 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-ACCOUNTCLOSURENOTE3 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-ACCOUNTCLOSURENOTE4 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-CONTAINERFIELD1 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-CONTAINERFIELD2 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-CONTAINERFIELD3 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-CONTAINERFIELD4 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-CONTAINERFIELD5 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-CONTAINERFIELD6 sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCRELEASESTATUS sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRRELEASESTATUS sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-REFACCDECLINEKEY sy-vline 
WA_IBKK_REF_ACCOUNT_INT_STR-DESCRDECLINEKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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