ABAP Select data from SAP table KKB_ABGRENZUNG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKB_ABGRENZUNG
*  INTO TABLE @DATA(IT_KKB_ABGRENZUNG2).
*--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_KKB_ABGRENZUNG INDEX 1 INTO DATA(WA_KKB_ABGRENZUNG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKB_ABGRENZUNG>-AVERS = 1.
<KKB_ABGRENZUNG>-ABGRWIP = 1.
<KKB_ABGRENZUNG>-ABGRUEKFK = 1.
<KKB_ABGRENZUNG>-ABGRUEKDV = 1.
<KKB_ABGRENZUNG>-ABGERGERL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKB_ABGRENZUNG-ABGERLBES, sy-vline,
  WA_KKB_ABGRENZUNG-ABGERLUEB, sy-vline,
  WA_KKB_ABGRENZUNG-ABGKOUMS, sy-vline,
  WA_KKB_ABGRENZUNG-ABGBESGES, sy-vline,
  WA_KKB_ABGRENZUNG-ABGRUKGES, sy-vline,
  WA_KKB_ABGRENZUNG-ABGERGEB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKB_ABGRENZUNG 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_KKB_ABGRENZUNG 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_KKB_ABGRENZUNG INTO WA_KKB_ABGRENZUNG.


*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 AVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKB_ABGRENZUNG-AVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKB_ABGRENZUNG-AVERS.
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_KKB_ABGRENZUNG_STR, 
AVERS TYPE STRING,
ABGRWIP TYPE STRING,
ABGRUEKFK TYPE STRING,
ABGRUEKDV TYPE STRING,
ABGERGERL TYPE STRING,
ABGERLBES TYPE STRING,
ABGERLUEB TYPE STRING,
ABGKOUMS TYPE STRING,
ABGBESGES TYPE STRING,
ABGRUKGES TYPE STRING,
ABGERGEB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKB_ABGRENZUNG_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_KKB_ABGRENZUNG_STR-AVERS sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGRWIP sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGRUEKFK sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGRUEKDV sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGERGERL sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGERLBES sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGERLUEB sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGKOUMS sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGBESGES sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGRUKGES sy-vline 
WA_KKB_ABGRENZUNG_STR-ABGERGEB sy-vline      INTO ld_text SEPARATED BY SPACE.

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