ABAP Select data from SAP table IBKKM5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBKKM5 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 IBKKM5. 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 IBKKM5 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_IBKKM5 TYPE STANDARD TABLE OF IBKKM5,
      WA_IBKKM5 TYPE IBKKM5,
      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: <IBKKM5> TYPE IBKKM5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IBKKM5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IBKKM5
  INTO TABLE IT_IBKKM5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKKM5
*  INTO TABLE @DATA(IT_IBKKM52).
*--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_IBKKM5 INDEX 1 INTO DATA(WA_IBKKM52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IBKKM5 ASSIGNING <IBKKM5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKKM5>-BKKRS = 1.
<IBKKM5>-ACNUM_INT = 1.
<IBKKM5>-CURR_YEAR = 1.
<IBKKM5>-CURR_NR = 1.
<IBKKM5>-NEXT_DATE = 1.

ENDLOOP.

LOOP AT IT_IBKKM5 INTO WA_IBKKM5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKKM5-XCLOS, sy-vline,
  WA_IBKKM5-GRPNUM, sy-vline,
  WA_IBKKM5-GRP_BKKRS, sy-vline,
  WA_IBKKM5-GRP_ACNUM_INT, sy-vline,
  WA_IBKKM5-XNOPREPARE, sy-vline,
  WA_IBKKM5-XNOUPDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKKM5 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_IBKKM5 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_IBKKM5 INTO WA_IBKKM5.


*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 ACNUM_INT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKKM5-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKKM5-ACNUM_INT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRP_ACNUM_INT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKKM5-GRP_ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKKM5-GRP_ACNUM_INT.
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_IBKKM5_STR, 
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
CURR_YEAR TYPE STRING,
CURR_NR TYPE STRING,
NEXT_DATE TYPE STRING,
XCLOS TYPE STRING,
GRPNUM TYPE STRING,
GRP_BKKRS TYPE STRING,
GRP_ACNUM_INT TYPE STRING,
XNOPREPARE TYPE STRING,
XNOUPDATE TYPE STRING,
XNOCONFIRM TYPE STRING,
CONDCALC TYPE STRING,
XTODELETE TYPE STRING,
STATTODEL TYPE STRING,
XNOITEMS TYPE STRING,
ACCLOCKCTG TYPE STRING,
LOCKDETAIL TYPE STRING,
XINTEREST TYPE STRING,
BKSTATUS TYPE STRING,
CURR_NR6 TYPE STRING,
XSIMMLTPER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKKM5_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_IBKKM5_STR-BKKRS sy-vline 
WA_IBKKM5_STR-ACNUM_INT sy-vline 
WA_IBKKM5_STR-CURR_YEAR sy-vline 
WA_IBKKM5_STR-CURR_NR sy-vline 
WA_IBKKM5_STR-NEXT_DATE sy-vline 
WA_IBKKM5_STR-XCLOS sy-vline 
WA_IBKKM5_STR-GRPNUM sy-vline 
WA_IBKKM5_STR-GRP_BKKRS sy-vline 
WA_IBKKM5_STR-GRP_ACNUM_INT sy-vline 
WA_IBKKM5_STR-XNOPREPARE sy-vline 
WA_IBKKM5_STR-XNOUPDATE sy-vline 
WA_IBKKM5_STR-XNOCONFIRM sy-vline 
WA_IBKKM5_STR-CONDCALC sy-vline 
WA_IBKKM5_STR-XTODELETE sy-vline 
WA_IBKKM5_STR-STATTODEL sy-vline 
WA_IBKKM5_STR-XNOITEMS sy-vline 
WA_IBKKM5_STR-ACCLOCKCTG sy-vline 
WA_IBKKM5_STR-LOCKDETAIL sy-vline 
WA_IBKKM5_STR-XINTEREST sy-vline 
WA_IBKKM5_STR-BKSTATUS sy-vline 
WA_IBKKM5_STR-CURR_NR6 sy-vline 
WA_IBKKM5_STR-XSIMMLTPER sy-vline      INTO ld_text SEPARATED BY SPACE.

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