ABAP Select data from SAP table KKBCS_ORIG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKBCS_ORIG
*  INTO TABLE @DATA(IT_KKBCS_ORIG2).
*--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_KKBCS_ORIG INDEX 1 INTO DATA(WA_KKBCS_ORIG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKBCS_ORIG>-HKTYP = 1.
<KKBCS_ORIG>-PRZNR = 1.
<KKBCS_ORIG>-AUFNR = 1.
<KKBCS_ORIG>-HERKU = 1.
<KKBCS_ORIG>-KOSTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKBCS_ORIG-LSTAR, sy-vline,
  WA_KKBCS_ORIG-PKSLA, sy-vline,
  WA_KKBCS_ORIG-MATNR, sy-vline,
  WA_KKBCS_ORIG-WERKS, sy-vline,
  WA_KKBCS_ORIG-PMAWR, sy-vline,
  WA_KKBCS_ORIG-HKGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKBCS_ORIG 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_KKBCS_ORIG 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_KKBCS_ORIG INTO WA_KKBCS_ORIG.


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

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS_ORIG-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS_ORIG-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS_ORIG-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS_ORIG-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KKBCS_ORIG-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKBCS_ORIG-MATNR.
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_KKBCS_ORIG_STR, 
HKTYP TYPE STRING,
PRZNR TYPE STRING,
AUFNR TYPE STRING,
HERKU TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
PKSLA TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PMAWR TYPE STRING,
HKGRP TYPE STRING,
BEMOT TYPE STRING,
PARTN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKBCS_ORIG_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_KKBCS_ORIG_STR-HKTYP sy-vline 
WA_KKBCS_ORIG_STR-PRZNR sy-vline 
WA_KKBCS_ORIG_STR-AUFNR sy-vline 
WA_KKBCS_ORIG_STR-HERKU sy-vline 
WA_KKBCS_ORIG_STR-KOSTL sy-vline 
WA_KKBCS_ORIG_STR-LSTAR sy-vline 
WA_KKBCS_ORIG_STR-PKSLA sy-vline 
WA_KKBCS_ORIG_STR-MATNR sy-vline 
WA_KKBCS_ORIG_STR-WERKS sy-vline 
WA_KKBCS_ORIG_STR-PMAWR sy-vline 
WA_KKBCS_ORIG_STR-HKGRP sy-vline 
WA_KKBCS_ORIG_STR-BEMOT sy-vline 
WA_KKBCS_ORIG_STR-PARTN sy-vline      INTO ld_text SEPARATED BY SPACE.

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