ABAP Select data from SAP table KONBBY_KOMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KONBBY_KOMP
*  INTO TABLE @DATA(IT_KONBBY_KOMP2).
*--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_KONBBY_KOMP INDEX 1 INTO DATA(WA_KONBBY_KOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KONBBY_KOMP>-BBYNR = 1.
<KONBBY_KOMP>-BBYPRQTYPE = 1.
<KONBBY_KOMP>-BBYGRPGNR = 1.
<KONBBY_KOMP>-BBYMATNR = 1.
<KONBBY_KOMP>-BBYMATQUAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KONBBY_KOMP-BBYMATUNIT, sy-vline,
  WA_KONBBY_KOMP-BBYSUMFLAG, sy-vline,
  WA_KONBBY_KOMP-BBYREQNR, sy-vline,
  WA_KONBBY_KOMP-BBYPER, sy-vline,
  WA_KONBBY_KOMP-BBYVAL, sy-vline,
  WA_KONBBY_KOMP-BBYCUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KONBBY_KOMP 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_KONBBY_KOMP 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_KONBBY_KOMP INTO WA_KONBBY_KOMP.


*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 MATN1, internal->external for field BBYMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KONBBY_KOMP-BBYMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONBBY_KOMP-BBYMATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BBYMATUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KONBBY_KOMP-BBYMATUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONBBY_KOMP-BBYMATUNIT.
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_KONBBY_KOMP_STR, 
BBYNR TYPE STRING,
BBYPRQTYPE TYPE STRING,
BBYGRPGNR TYPE STRING,
BBYMATNR TYPE STRING,
BBYMATQUAN TYPE STRING,
BBYMATUNIT TYPE STRING,
BBYSUMFLAG TYPE STRING,
BBYREQNR TYPE STRING,
BBYPER TYPE STRING,
BBYVAL TYPE STRING,
BBYCUR TYPE STRING,
BBYRQMIN TYPE STRING,
BBYRQMAX TYPE STRING,
BBYCUSCARD TYPE STRING,
BBYSCALETYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KONBBY_KOMP_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_KONBBY_KOMP_STR-BBYNR sy-vline 
WA_KONBBY_KOMP_STR-BBYPRQTYPE sy-vline 
WA_KONBBY_KOMP_STR-BBYGRPGNR sy-vline 
WA_KONBBY_KOMP_STR-BBYMATNR sy-vline 
WA_KONBBY_KOMP_STR-BBYMATQUAN sy-vline 
WA_KONBBY_KOMP_STR-BBYMATUNIT sy-vline 
WA_KONBBY_KOMP_STR-BBYSUMFLAG sy-vline 
WA_KONBBY_KOMP_STR-BBYREQNR sy-vline 
WA_KONBBY_KOMP_STR-BBYPER sy-vline 
WA_KONBBY_KOMP_STR-BBYVAL sy-vline 
WA_KONBBY_KOMP_STR-BBYCUR sy-vline 
WA_KONBBY_KOMP_STR-BBYRQMIN sy-vline 
WA_KONBBY_KOMP_STR-BBYRQMAX sy-vline 
WA_KONBBY_KOMP_STR-BBYCUSCARD sy-vline 
WA_KONBBY_KOMP_STR-BBYSCALETYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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