ABAP Select data from SAP table IBKKM17 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBKKM17 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 IBKKM17. 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 IBKKM17 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_IBKKM17 TYPE STANDARD TABLE OF IBKKM17,
      WA_IBKKM17 TYPE IBKKM17,
      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: <IBKKM17> TYPE IBKKM17.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IBKKM17.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IBKKM17
  INTO TABLE IT_IBKKM17.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKKM17
*  INTO TABLE @DATA(IT_IBKKM172).
*--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_IBKKM17 INDEX 1 INTO DATA(WA_IBKKM172).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IBKKM17 ASSIGNING <IBKKM17>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKKM17>-PROGN = 1.
<IBKKM17>-PROGDATE = 1.
<IBKKM17>-PROGNO = 1.
<IBKKM17>-TAPPLCATG = 1.
<IBKKM17>-RUNDATE = 1.

ENDLOOP.

LOOP AT IT_IBKKM17 INTO WA_IBKKM17.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKKM17-RUNTIME, sy-vline,
  WA_IBKKM17-RUNUSER, sy-vline,
  WA_IBKKM17-TCURRSTAT, sy-vline,
  WA_IBKKM17-TREALSTAT, sy-vline,
  WA_IBKKM17-XSIMULRUN, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_IBKKM17 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_IBKKM17 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_IBKKM17 INTO WA_IBKKM17.


*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 PROGNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKKM17-PROGNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKKM17-PROGNO.
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_IBKKM17_STR, 
PROGN TYPE STRING,
PROGDATE TYPE STRING,
PROGNO TYPE STRING,
TAPPLCATG TYPE STRING,
RUNDATE TYPE STRING,
RUNTIME TYPE STRING,
RUNUSER TYPE STRING,
TCURRSTAT TYPE STRING,
TREALSTAT TYPE STRING,
XSIMULRUN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKKM17_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_IBKKM17_STR-PROGN sy-vline 
WA_IBKKM17_STR-PROGDATE sy-vline 
WA_IBKKM17_STR-PROGNO sy-vline 
WA_IBKKM17_STR-TAPPLCATG sy-vline 
WA_IBKKM17_STR-RUNDATE sy-vline 
WA_IBKKM17_STR-RUNTIME sy-vline 
WA_IBKKM17_STR-RUNUSER sy-vline 
WA_IBKKM17_STR-TCURRSTAT sy-vline 
WA_IBKKM17_STR-TREALSTAT sy-vline 
WA_IBKKM17_STR-XSIMULRUN sy-vline      INTO ld_text SEPARATED BY SPACE.

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