ABAP Select data from SAP table IBKK43_S2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBKK43_S2 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 IBKK43_S2. 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 IBKK43_S2 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_IBKK43_S2 TYPE STANDARD TABLE OF IBKK43_S2,
      WA_IBKK43_S2 TYPE IBKK43_S2,
      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: <IBKK43_S2> TYPE IBKK43_S2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IBKK43_S2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IBKK43_S2
  INTO TABLE IT_IBKK43_S2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK43_S2
*  INTO TABLE @DATA(IT_IBKK43_S22).
*--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_IBKK43_S2 INDEX 1 INTO DATA(WA_IBKK43_S22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IBKK43_S2 ASSIGNING <IBKK43_S2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK43_S2>-INT_POST_METH = 1.
<IBKK43_S2>-NBANKS = 1.
<IBKK43_S2>-NBANKL = 1.
<IBKK43_S2>-NSWIFT = 1.
<IBKK43_S2>-NACNUM = 1.

ENDLOOP.

LOOP AT IT_IBKK43_S2 INTO WA_IBKK43_S2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK43_S2-NBKS, sy-vline,
  WA_IBKK43_S2-NIBAN, sy-vline,
  WA_IBKK43_S2-NACHOLD, sy-vline,
  WA_IBKK43_S2-TRNSTYPE, sy-vline,
  WA_IBKK43_S2-TRNSTYPE2, sy-vline,
  WA_IBKK43_S2-PAYMETHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK43_S2 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_IBKK43_S2 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_IBKK43_S2 INTO WA_IBKK43_S2.


*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 NACNUM
CALL FUNCTION 'CONVERSION_EXIT_ACEXT_OUTPUT'
  EXPORTING
    input =                      WA_IBKK43_S2-NACNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK43_S2-NACNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NIBAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK43_S2-NIBAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK43_S2-NIBAN.
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_IBKK43_S2_STR, 
INT_POST_METH TYPE STRING,
NBANKS TYPE STRING,
NBANKL TYPE STRING,
NSWIFT TYPE STRING,
NACNUM TYPE STRING,
NBKS TYPE STRING,
NIBAN TYPE STRING,
NACHOLD TYPE STRING,
TRNSTYPE TYPE STRING,
TRNSTYPE2 TYPE STRING,
PAYMETHOD TYPE STRING,
XCHKDIG_R TYPE STRING,
MANDATE_ID TYPE STRING,
UCI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK43_S2_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_IBKK43_S2_STR-INT_POST_METH sy-vline 
WA_IBKK43_S2_STR-NBANKS sy-vline 
WA_IBKK43_S2_STR-NBANKL sy-vline 
WA_IBKK43_S2_STR-NSWIFT sy-vline 
WA_IBKK43_S2_STR-NACNUM sy-vline 
WA_IBKK43_S2_STR-NBKS sy-vline 
WA_IBKK43_S2_STR-NIBAN sy-vline 
WA_IBKK43_S2_STR-NACHOLD sy-vline 
WA_IBKK43_S2_STR-TRNSTYPE sy-vline 
WA_IBKK43_S2_STR-TRNSTYPE2 sy-vline 
WA_IBKK43_S2_STR-PAYMETHOD sy-vline 
WA_IBKK43_S2_STR-XCHKDIG_R sy-vline 
WA_IBKK43_S2_STR-MANDATE_ID sy-vline 
WA_IBKK43_S2_STR-UCI sy-vline      INTO ld_text SEPARATED BY SPACE.

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