ABAP Select data from SAP table /IBS/CRB_KTOFI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /IBS/CRB_KTOFI 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 /IBS/CRB_KTOFI. 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 /IBS/CRB_KTOFI 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_/IBS/CRB_KTOFI TYPE STANDARD TABLE OF /IBS/CRB_KTOFI,
      WA_/IBS/CRB_KTOFI TYPE /IBS/CRB_KTOFI,
      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: </IBS/CRB_KTOFI> TYPE /IBS/CRB_KTOFI.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /IBS/CRB_KTOFI
  INTO TABLE IT_/IBS/CRB_KTOFI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IBS/CRB_KTOFI
*  INTO TABLE @DATA(IT_/IBS/CRB_KTOFI2).
*--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_/IBS/CRB_KTOFI INDEX 1 INTO DATA(WA_/IBS/CRB_KTOFI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/IBS/CRB_KTOFI ASSIGNING </IBS/CRB_KTOFI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IBS/CRB_KTOFI>-MANDANT = 1.
</IBS/CRB_KTOFI>-RBDID = 1.
</IBS/CRB_KTOFI>-RBDKL = 1.
</IBS/CRB_KTOFI>-BWART = 1.
</IBS/CRB_KTOFI>-TWAERS = 1.

ENDLOOP.

LOOP AT IT_/IBS/CRB_KTOFI INTO WA_/IBS/CRB_KTOFI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IBS/CRB_KTOFI-BEWME, sy-vline,
  WA_/IBS/CRB_KTOFI-BLART, sy-vline,
  WA_/IBS/CRB_KTOFI-SBSLSOLL, sy-vline,
  WA_/IBS/CRB_KTOFI-RSOLL, sy-vline,
  WA_/IBS/CRB_KTOFI-SHSLHABEN, sy-vline,
  WA_/IBS/CRB_KTOFI-RHABEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IBS/CRB_KTOFI 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_/IBS/CRB_KTOFI 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_/IBS/CRB_KTOFI INTO WA_/IBS/CRB_KTOFI.


*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 RSOLL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/CRB_KTOFI-RSOLL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/CRB_KTOFI-RSOLL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RHABEN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/CRB_KTOFI-RHABEN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/CRB_KTOFI-RHABEN.
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_/IBS/CRB_KTOFI_STR, 
MANDANT TYPE STRING,
RBDID TYPE STRING,
RBDKL TYPE STRING,
BWART TYPE STRING,
TWAERS TYPE STRING,
BEWME TYPE STRING,
BLART TYPE STRING,
SBSLSOLL TYPE STRING,
RSOLL TYPE STRING,
SHSLHABEN TYPE STRING,
RHABEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IBS/CRB_KTOFI_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_/IBS/CRB_KTOFI_STR-MANDANT sy-vline 
WA_/IBS/CRB_KTOFI_STR-RBDID sy-vline 
WA_/IBS/CRB_KTOFI_STR-RBDKL sy-vline 
WA_/IBS/CRB_KTOFI_STR-BWART sy-vline 
WA_/IBS/CRB_KTOFI_STR-TWAERS sy-vline 
WA_/IBS/CRB_KTOFI_STR-BEWME sy-vline 
WA_/IBS/CRB_KTOFI_STR-BLART sy-vline 
WA_/IBS/CRB_KTOFI_STR-SBSLSOLL sy-vline 
WA_/IBS/CRB_KTOFI_STR-RSOLL sy-vline 
WA_/IBS/CRB_KTOFI_STR-SHSLHABEN sy-vline 
WA_/IBS/CRB_KTOFI_STR-RHABEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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