ABAP Select data from SAP table IBKK_ITDDY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBKK_ITDDY 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_ITDDY. 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_ITDDY 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_ITDDY TYPE STANDARD TABLE OF IBKK_ITDDY,
      WA_IBKK_ITDDY TYPE IBKK_ITDDY,
      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_ITDDY> TYPE IBKK_ITDDY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK_ITDDY
*  INTO TABLE @DATA(IT_IBKK_ITDDY2).
*--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_ITDDY INDEX 1 INTO DATA(WA_IBKK_ITDDY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK_ITDDY>-BKKRS = 1.
<IBKK_ITDDY>-DOCNO = 1.
<IBKK_ITDDY>-POSNO = 1.
<IBKK_ITDDY>-ACNUM_EXT = 1.
<IBKK_ITDDY>-ACNUM_IBAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK_ITDDY-ALT_ACEXT, sy-vline,
  WA_IBKK_ITDDY-ALT_IBAN, sy-vline,
  WA_IBKK_ITDDY-BUPA_NAME, sy-vline,
  WA_IBKK_ITDDY-REFNO_CR, sy-vline,
  WA_IBKK_ITDDY-REFNO_PAYM, sy-vline,
  WA_IBKK_ITDDY-REFNO_PN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK_ITDDY 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_ITDDY 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_ITDDY INTO WA_IBKK_ITDDY.


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

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

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

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

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

*Conversion exit EXCRT, internal->external for field EXCHNGRATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_ITDDY-EXCHNGRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_ITDDY-EXCHNGRATE.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field REF_IBAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_ITDDY-REF_IBAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_ITDDY-REF_IBAN.
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_ITDDY_STR, 
BKKRS TYPE STRING,
DOCNO TYPE STRING,
POSNO TYPE STRING,
ACNUM_EXT TYPE STRING,
ACNUM_IBAN TYPE STRING,
ALT_ACEXT TYPE STRING,
ALT_IBAN TYPE STRING,
BUPA_NAME TYPE STRING,
REFNO_CR TYPE STRING,
REFNO_PAYM TYPE STRING,
REFNO_PN TYPE STRING,
DATE_VALUE TYPE STRING,
DATE_POST TYPE STRING,
TCUR TYPE STRING,
T_AMOUNT TYPE STRING,
T_CHARGE TYPE STRING,
NACUR TYPE STRING,
NA_AMOUNT TYPE STRING,
NA_CHARGE TYPE STRING,
ACUR TYPE STRING,
A_AMOUNT TYPE STRING,
A_CHARGE TYPE STRING,
EXCHNGRATE TYPE STRING,
MEDIUM TYPE STRING,
TRNSTYPE TYPE STRING,
S_TRNSTYPE TYPE STRING,
CHEQUE_TYP TYPE STRING,
CHEQUE_NO TYPE STRING,
ITEMCNT TYPE STRING,
BUTXT TYPE STRING,
REMARK TYPE STRING,
ITEMTYPE TYPE STRING,
PROCESS TYPE STRING,
REF_ACEXT TYPE STRING,
REF_IBAN TYPE STRING,
REF_NAME TYPE STRING,
REF_BANKS TYPE STRING,
REF_BANKL TYPE STRING,
XPRI_PPROC TYPE STRING,
REVERSE_NO TYPE STRING,
REVERSE_PS TYPE STRING,
TRNSF_BK_B TYPE STRING,
TRNSF_NO_B TYPE STRING,
TRNSF_PS_B TYPE STRING,
TRNSF_BK_F TYPE STRING,
TRNSF_NO_F TYPE STRING,
TRNSF_PS_F TYPE STRING,
REF_PO_BK TYPE STRING,
REF_PO_NO TYPE STRING,
REF_PO_PS TYPE STRING,
XCHK_VALUE TYPE STRING,
XCHK_LIMIT TYPE STRING,
XCHK_ACLCK TYPE STRING,
XCHK_BPLCK TYPE STRING,
XERR_SYST TYPE STRING,
XERR_CHQUE TYPE STRING,
XERR_VALUE TYPE STRING,
XERR_LIMIT TYPE STRING,
XERR_ACLCK TYPE STRING,
XERR_BPLCK TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
RLUSR TYPE STRING,
RLDAT TYPE STRING,
RLTIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK_ITDDY_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_ITDDY_STR-BKKRS sy-vline 
WA_IBKK_ITDDY_STR-DOCNO sy-vline 
WA_IBKK_ITDDY_STR-POSNO sy-vline 
WA_IBKK_ITDDY_STR-ACNUM_EXT sy-vline 
WA_IBKK_ITDDY_STR-ACNUM_IBAN sy-vline 
WA_IBKK_ITDDY_STR-ALT_ACEXT sy-vline 
WA_IBKK_ITDDY_STR-ALT_IBAN sy-vline 
WA_IBKK_ITDDY_STR-BUPA_NAME sy-vline 
WA_IBKK_ITDDY_STR-REFNO_CR sy-vline 
WA_IBKK_ITDDY_STR-REFNO_PAYM sy-vline 
WA_IBKK_ITDDY_STR-REFNO_PN sy-vline 
WA_IBKK_ITDDY_STR-DATE_VALUE sy-vline 
WA_IBKK_ITDDY_STR-DATE_POST sy-vline 
WA_IBKK_ITDDY_STR-TCUR sy-vline 
WA_IBKK_ITDDY_STR-T_AMOUNT sy-vline 
WA_IBKK_ITDDY_STR-T_CHARGE sy-vline 
WA_IBKK_ITDDY_STR-NACUR sy-vline 
WA_IBKK_ITDDY_STR-NA_AMOUNT sy-vline 
WA_IBKK_ITDDY_STR-NA_CHARGE sy-vline 
WA_IBKK_ITDDY_STR-ACUR sy-vline 
WA_IBKK_ITDDY_STR-A_AMOUNT sy-vline 
WA_IBKK_ITDDY_STR-A_CHARGE sy-vline 
WA_IBKK_ITDDY_STR-EXCHNGRATE sy-vline 
WA_IBKK_ITDDY_STR-MEDIUM sy-vline 
WA_IBKK_ITDDY_STR-TRNSTYPE sy-vline 
WA_IBKK_ITDDY_STR-S_TRNSTYPE sy-vline 
WA_IBKK_ITDDY_STR-CHEQUE_TYP sy-vline 
WA_IBKK_ITDDY_STR-CHEQUE_NO sy-vline 
WA_IBKK_ITDDY_STR-ITEMCNT sy-vline 
WA_IBKK_ITDDY_STR-BUTXT sy-vline 
WA_IBKK_ITDDY_STR-REMARK sy-vline 
WA_IBKK_ITDDY_STR-ITEMTYPE sy-vline 
WA_IBKK_ITDDY_STR-PROCESS sy-vline 
WA_IBKK_ITDDY_STR-REF_ACEXT sy-vline 
WA_IBKK_ITDDY_STR-REF_IBAN sy-vline 
WA_IBKK_ITDDY_STR-REF_NAME sy-vline 
WA_IBKK_ITDDY_STR-REF_BANKS sy-vline 
WA_IBKK_ITDDY_STR-REF_BANKL sy-vline 
WA_IBKK_ITDDY_STR-XPRI_PPROC sy-vline 
WA_IBKK_ITDDY_STR-REVERSE_NO sy-vline 
WA_IBKK_ITDDY_STR-REVERSE_PS sy-vline 
WA_IBKK_ITDDY_STR-TRNSF_BK_B sy-vline 
WA_IBKK_ITDDY_STR-TRNSF_NO_B sy-vline 
WA_IBKK_ITDDY_STR-TRNSF_PS_B sy-vline 
WA_IBKK_ITDDY_STR-TRNSF_BK_F sy-vline 
WA_IBKK_ITDDY_STR-TRNSF_NO_F sy-vline 
WA_IBKK_ITDDY_STR-TRNSF_PS_F sy-vline 
WA_IBKK_ITDDY_STR-REF_PO_BK sy-vline 
WA_IBKK_ITDDY_STR-REF_PO_NO sy-vline 
WA_IBKK_ITDDY_STR-REF_PO_PS sy-vline 
WA_IBKK_ITDDY_STR-XCHK_VALUE sy-vline 
WA_IBKK_ITDDY_STR-XCHK_LIMIT sy-vline 
WA_IBKK_ITDDY_STR-XCHK_ACLCK sy-vline 
WA_IBKK_ITDDY_STR-XCHK_BPLCK sy-vline 
WA_IBKK_ITDDY_STR-XERR_SYST sy-vline 
WA_IBKK_ITDDY_STR-XERR_CHQUE sy-vline 
WA_IBKK_ITDDY_STR-XERR_VALUE sy-vline 
WA_IBKK_ITDDY_STR-XERR_LIMIT sy-vline 
WA_IBKK_ITDDY_STR-XERR_ACLCK sy-vline 
WA_IBKK_ITDDY_STR-XERR_BPLCK sy-vline 
WA_IBKK_ITDDY_STR-CRUSR sy-vline 
WA_IBKK_ITDDY_STR-CRDAT sy-vline 
WA_IBKK_ITDDY_STR-CRTIM sy-vline 
WA_IBKK_ITDDY_STR-CHUSR sy-vline 
WA_IBKK_ITDDY_STR-CHDAT sy-vline 
WA_IBKK_ITDDY_STR-CHTIM sy-vline 
WA_IBKK_ITDDY_STR-RLUSR sy-vline 
WA_IBKK_ITDDY_STR-RLDAT sy-vline 
WA_IBKK_ITDDY_STR-RLTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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